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#1 Canadian FJR

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Posted 30 December 2011 - 07:23 AM

I did a quick search but found nothing. Has anyone had their FJR heads ported and polished. I'm curious how much more flow can be found. The next obvious step would be to have the cams modified.









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#2 Bustanut joker

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Posted 30 December 2011 - 07:59 AM

I don't recall ever seeing anything like that being done Scott... However, Carver will have his off soon maybe we could persuade him into something like this?:unsure:
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#3 Ignacio

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Posted 30 December 2011 - 08:12 AM

Has anyone had their FJR heads ported and polished. I'm curious how much more flow can be found. The next obvious step would be to have the cams modified.

Not that I remember. You'd be the first. Report back your results. :)

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#4 RaYzerman19

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Posted 30 December 2011 - 09:22 AM

I don't know that I'd mess too much with an already good thing. It's already primed up as a performance engine. You may gain a couple of horses, but you are restricted by the size of the exhaust headers and the throttle bodies. Next thing you would have to do is mess with the fuel mapping, all of which is going to consume more fuel, less range, and possibly cause driveability problems/changes that no longer make it the smooth sport touring machine it is. Especially if you changed the cams. Personally, I'd maybe polish, but how long does polishing really last when you'll get a fine layer of carbon deposits on it. I'm sure there are experts who know (oh yeah, I'm an expert - ex is a has-been, and a spurt is a drip under pressure) better than me. I just think you'll end up with a lot of work and expense for little gain or possible degradation in driveability.. just my humble opinion.

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#5 yamafitter

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Posted 30 December 2011 - 09:52 AM

I would pretty much have to agree with Ray on this one. In the old days polishing was a good way to improve airflow through the head but with the modern casting techniques the passages are pretty smooth right from the factory so any gain will be minimal IMHO. There may be something to gain with a custom valve grind to smooth the flow around the valve. I had a friend that built modified dirt track motors and they would cut seven different angles in an attempt to get close to a radiused bend on the valve seat and still be within the rules (sort of ;)). The downside to doing this is that you will decrease the seat area of the valve which increases wear. This is not a concern with a race motor that is being constantly torn down and refreshed but is not good for durability.

As most will tell you the first place to start with an EFI motor when looking to improve power is with the ECU. Modifying the fuel map to match your particular bike and environment is the best money to spend. UselessPickles has already done a ton of work in this area and I would be inclined to contact him and then book some local dyno time to dial everything in. 

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#6 ionbeam

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Posted 30 December 2011 - 11:21 AM

I also agree with Ray. And, since it's Friday I'll mention that losing 10 pounds would probably produce more noticeable acceleration improvement than a port 'n polish on the FJR. I've had the head off and was able to look down the ports and at the valve bowl area. There is some polishing that could be done to blend and knife edge the dividers between the valves but not much else. 

#7 FJRMGM

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Posted 30 December 2011 - 11:25 AM

lots of time and effort and $$$ for not much improvement.

But hey, its your time, effort and $$$ so go ahead and be sure to report the results. 

I now live in motorcycling paradise - NW Arkansas!!

#8 Powerman

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Posted 30 December 2011 - 08:13 PM

I could see a little clean up, you won't get much.
Porting isn't as easy as it may seem, I have a flow bench in my garage.
I never want to be first, there's a lot of trial and error.
If you have a pile of heads you can experiment.
There's a tricky balance between flow and velocity.
Big flow numbers don't always equate to horsepower.

I could see a re-ground cam and some higher compression,
but that would mean high test and more of it. 

#9 wfooshee

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Posted 30 December 2011 - 08:51 PM

I could see a re-ground cam and some higher compression,
but that would mean high test and more of it.


For the strip or track, maybe. And I mean maybe. For the street, not a chance in hell. Not me, anyway.

Why (possibly) give up all-year reliability, silky smoothness, and economy for an undetectable power gain that means absolutely nothing at 70, 80, or even 120, miles per hour? 

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#10 Bustanut joker

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Posted 30 December 2011 - 08:55 PM

Ok Ok Ok So it's a complete waste of time. the manufacturing process has advanced to the stage we are now forced to accept nothing can be done to remotely give us an edge. 

Guess me putting mothballs in the tank isn't worth killing the little fukers for the miniscule increase in performance then.. The tree huggers are now going to be knocking down me door! 
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#11 HotRodZilla

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Posted 30 December 2011 - 11:16 PM

Ok Ok Ok So it's a complete waste of time. the manufacturing process has advanced to the stage we are now forced to accept nothing can be done to remotely give us an edge. 

Guess me putting mothballs in the tank isn't worth killing the little fukers for the miniscule increase in performance then.. The tree huggers are now going to be knocking down me door!



I don't think that's it Bust. If you're gonna race the motor and be willing to take it apart every few hours of use, it would probably be worth the work. BUT...as already pointed out, porting and polishing to max gain is going to take some practice and trial & error.

Who wants to do that with their road bike? If you're playing a game of tenths of seconds, its worth it. For what we use them for...No way. 

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#12 Canadian FJR

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Posted 31 December 2011 - 05:58 AM

Thanks for all the comments. I have worked with a very good engine guy in the past. This has included both street and race engines and I have full confidence in what can be done. It comes down to time and money. If I can find a head at a reasonable price I will let him play with the flow a little and report back.









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#13 LAF

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Posted 31 December 2011 - 06:44 AM

If I had the head off and had someone close I would let them flow it for sure. The issue comes with cams. You would probably need to go bigger on the valve seats and valves and new springs to handle the lift of the new cam. Then you have to get it fuel and not sure what the max flow of the throttle bodies are. You could overcome that a bit with bigger injectors, but then you may need more fuel pressure, and then a good dyno to dial in a Power Commander.

If I had a friend and it was off I would have it flowed. Cant hurt. And I have no idea what kind of valves, seats, and springs are in there but there are some very good valve sets out there that could improve on things.

Effort verses the gain would be the big question but to flow a head is a good thing and may help equalizing the throttle bodies on a sync. 

#14 wfooshee

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Posted 31 December 2011 - 08:57 AM

If something happened that needed the head to be pulled, I'd probably be searching eBay for another motor. Like others have done after CCT issues. 

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#15 falsus nomen

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Posted 16 September 2016 - 12:13 AM

WHAT?  What are you all talking about. If I ever have the head off, the first thing I would do is have it ported and polished. If you have ever worked with racing vehicles of any type, you know that even ok stock work can gain a lot with a basic p&p.

 

"OH, I looked down the intake it doesn't need it." WTF are you even saying.  ANY stock casting can do with cleaning and smoothing. On any engine.

#16 ionbeam

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Posted 16 September 2016 - 05:03 AM

Well, allrighty then, the falsus nomen Flying Pig Project  

 

flying-pig-02.png

 

How to make 650 lbs fly quicker, faster and higher.

 

All hot rodding items on the table.  First, let's design the project (OMG, an engineering plan on which to stage a project).  First, what target power level are you aiming for? What kind of Sport/Tour driving experience will the upgraded engine provide?  Will the torque and HP come from more top end RPM or lower RPM breathing?  What goals are there for fundamentals like piston size, rod stroke, combustion chamber volume & shape, valve size, compression ratio and cam profile?  On the secondary items, how will the fuel mapping take place and how will you get an aftermarket ignition controller installed?  Once all this is settled, it's time to look at air intake, intake runner length, header shape, length and exhaust system.  While thinking things over, it's also time to dig out the plastigauge, micrometer and scales  for a little blueprinting and balancing.

 

On the other hand, I'm pretty sure that an inexperienced person could do a fair amount of harm if they try to do shaping beyond just polishing.  I have had the cylinder head off my '04 FJR, I've looked at the intake runners and cylinder head pockets (hardly a pocket) and decided that the 2 - 5 hp wouldn't be worth the work.

 

CylHeadAirPort1.jpg

 

Look at all that opportunity to polish!  Man, just makes ya want to break out the pneumatic hone...  It sure makes a feller want to smooth, blend and knife edge shit.

 

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#17 Viper Pilot

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Posted 16 September 2016 - 05:23 AM

Why not look into turbo charging? With the relatively low compression I would think just some exhaust fabrication and custom dyno tuned fuel map would be the fastest way to boost up the power.  Folks with Busas did this many times.

#18 fljab

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Posted 16 September 2016 - 05:30 AM

Hey, my thoughts are if you have the head off, or have a spare, and want to take the time or know someone you trust, it can't hurt to do some cleanup of the head.  Smoothing out the passages, port matching, and bow blending behind the valves are all things that do help in many cases.  I do think, as has been said above, that if it's done wrong it can hurt, but WTH, go for it.

 

It does get you on the "slippery slope" of how much to do and what is too much.  I know my old 100K mile + stock '09 is plenty fast for me and I like how it will run anything for fuel and if you have a situation that you must use power to get out of, a gear or two will pull up the warp drive and get it done.

 

Can that be improved? Yes, and maybe, it's just not something we normally do because of the nature of the beast that FJRs are.  This means you can be a true FJR pioneer!  Let us know how it works out.

#19 Bustanut joker

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Posted 16 September 2016 - 08:18 AM

Well, allrighty then, the falsus nomen Flying Pig Project  

 

flying-pig-02.png

 

Why do you get yourself into these mind boggling debates Alan?
You know no matter what you say you're going to get the hard heads who don't understand logic or facts.

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#20 Bungie

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Posted 16 September 2016 - 09:25 AM

My 2 cents. Put the bike on a diet (I don't think you can stand to lose much). Next, change the gearing.  Wasn't the VMax final gear set a direct swap and you gain a 10% reduction, your 03 had the 'good' primary gear set from the factory. Throw in a heavy duty clutch while your at it.

 

I'm sure the Gen1's will haze the tires in first and likely the top of second as it sits from the factory, so, you'll need to address the traction issue.

 

Of course, I'm assuming this is all for quarter/eighth mile drag times. Your bike with these mods will lose no reliability or longevity because the engine has stayed stock. You'll still be able to tour with out destroying the bike prematurely.

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51 replies to this topic

#1 Canadian FJR

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Posted 30 December 2011 - 07:23 AM

I did a quick search but found nothing. Has anyone had their FJR heads ported and polished. I'm curious how much more flow can be found. The next obvious step would be to have the cams modified.









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#2 Bustanut joker

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Posted 30 December 2011 - 07:59 AM

I don't recall ever seeing anything like that being done Scott... However, Carver will have his off soon maybe we could persuade him into something like this?:unsure:
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#3 Ignacio

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Posted 30 December 2011 - 08:12 AM

Has anyone had their FJR heads ported and polished. I'm curious how much more flow can be found. The next obvious step would be to have the cams modified.

Not that I remember. You'd be the first. Report back your results. :)

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#4 RaYzerman19

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Posted 30 December 2011 - 09:22 AM

I don't know that I'd mess too much with an already good thing. It's already primed up as a performance engine. You may gain a couple of horses, but you are restricted by the size of the exhaust headers and the throttle bodies. Next thing you would have to do is mess with the fuel mapping, all of which is going to consume more fuel, less range, and possibly cause driveability problems/changes that no longer make it the smooth sport touring machine it is. Especially if you changed the cams. Personally, I'd maybe polish, but how long does polishing really last when you'll get a fine layer of carbon deposits on it. I'm sure there are experts who know (oh yeah, I'm an expert - ex is a has-been, and a spurt is a drip under pressure) better than me. I just think you'll end up with a lot of work and expense for little gain or possible degradation in driveability.. just my humble opinion.

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#5 yamafitter

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Posted 30 December 2011 - 09:52 AM

I would pretty much have to agree with Ray on this one. In the old days polishing was a good way to improve airflow through the head but with the modern casting techniques the passages are pretty smooth right from the factory so any gain will be minimal IMHO. There may be something to gain with a custom valve grind to smooth the flow around the valve. I had a friend that built modified dirt track motors and they would cut seven different angles in an attempt to get close to a radiused bend on the valve seat and still be within the rules (sort of ;)). The downside to doing this is that you will decrease the seat area of the valve which increases wear. This is not a concern with a race motor that is being constantly torn down and refreshed but is not good for durability.

As most will tell you the first place to start with an EFI motor when looking to improve power is with the ECU. Modifying the fuel map to match your particular bike and environment is the best money to spend. UselessPickles has already done a ton of work in this area and I would be inclined to contact him and then book some local dyno time to dial everything in. 

Confucius say: "No matter where you go ..... there you are"

#6 ionbeam

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Posted 30 December 2011 - 11:21 AM

I also agree with Ray. And, since it's Friday I'll mention that losing 10 pounds would probably produce more noticeable acceleration improvement than a port 'n polish on the FJR. I've had the head off and was able to look down the ports and at the valve bowl area. There is some polishing that could be done to blend and knife edge the dividers between the valves but not much else. 

#7 FJRMGM

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Posted 30 December 2011 - 11:25 AM

lots of time and effort and $$$ for not much improvement.

But hey, its your time, effort and $$$ so go ahead and be sure to report the results. 

I now live in motorcycling paradise - NW Arkansas!!

#8 Powerman

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Posted 30 December 2011 - 08:13 PM

I could see a little clean up, you won't get much.
Porting isn't as easy as it may seem, I have a flow bench in my garage.
I never want to be first, there's a lot of trial and error.
If you have a pile of heads you can experiment.
There's a tricky balance between flow and velocity.
Big flow numbers don't always equate to horsepower.

I could see a re-ground cam and some higher compression,
but that would mean high test and more of it. 

#9 wfooshee

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Posted 30 December 2011 - 08:51 PM

I could see a re-ground cam and some higher compression,
but that would mean high test and more of it.


For the strip or track, maybe. And I mean maybe. For the street, not a chance in hell. Not me, anyway.

Why (possibly) give up all-year reliability, silky smoothness, and economy for an undetectable power gain that means absolutely nothing at 70, 80, or even 120, miles per hour? 

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#10 Bustanut joker

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Posted 30 December 2011 - 08:55 PM

Ok Ok Ok So it's a complete waste of time. the manufacturing process has advanced to the stage we are now forced to accept nothing can be done to remotely give us an edge. 

Guess me putting mothballs in the tank isn't worth killing the little fukers for the miniscule increase in performance then.. The tree huggers are now going to be knocking down me door! 
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#11 HotRodZilla

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Posted 30 December 2011 - 11:16 PM

Ok Ok Ok So it's a complete waste of time. the manufacturing process has advanced to the stage we are now forced to accept nothing can be done to remotely give us an edge. 

Guess me putting mothballs in the tank isn't worth killing the little fukers for the miniscule increase in performance then.. The tree huggers are now going to be knocking down me door!



I don't think that's it Bust. If you're gonna race the motor and be willing to take it apart every few hours of use, it would probably be worth the work. BUT...as already pointed out, porting and polishing to max gain is going to take some practice and trial & error.

Who wants to do that with their road bike? If you're playing a game of tenths of seconds, its worth it. For what we use them for...No way. 

"Direct on the training and cutting off Gordon's head."

---One of my guys...03/31/2017

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#12 Canadian FJR

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Posted 31 December 2011 - 05:58 AM

Thanks for all the comments. I have worked with a very good engine guy in the past. This has included both street and race engines and I have full confidence in what can be done. It comes down to time and money. If I can find a head at a reasonable price I will let him play with the flow a little and report back.









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#13 LAF

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Posted 31 December 2011 - 06:44 AM

If I had the head off and had someone close I would let them flow it for sure. The issue comes with cams. You would probably need to go bigger on the valve seats and valves and new springs to handle the lift of the new cam. Then you have to get it fuel and not sure what the max flow of the throttle bodies are. You could overcome that a bit with bigger injectors, but then you may need more fuel pressure, and then a good dyno to dial in a Power Commander.

If I had a friend and it was off I would have it flowed. Cant hurt. And I have no idea what kind of valves, seats, and springs are in there but there are some very good valve sets out there that could improve on things.

Effort verses the gain would be the big question but to flow a head is a good thing and may help equalizing the throttle bodies on a sync. 

#14 wfooshee

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Posted 31 December 2011 - 08:57 AM

If something happened that needed the head to be pulled, I'd probably be searching eBay for another motor. Like others have done after CCT issues. 

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#15 falsus nomen

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Posted 16 September 2016 - 12:13 AM

WHAT?  What are you all talking about. If I ever have the head off, the first thing I would do is have it ported and polished. If you have ever worked with racing vehicles of any type, you know that even ok stock work can gain a lot with a basic p&p.

 

"OH, I looked down the intake it doesn't need it." WTF are you even saying.  ANY stock casting can do with cleaning and smoothing. On any engine.

#16 ionbeam

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Posted 16 September 2016 - 05:03 AM

Well, allrighty then, the falsus nomen Flying Pig Project  

 

flying-pig-02.png

 

How to make 650 lbs fly quicker, faster and higher.

 

All hot rodding items on the table.  First, let's design the project (OMG, an engineering plan on which to stage a project).  First, what target power level are you aiming for? What kind of Sport/Tour driving experience will the upgraded engine provide?  Will the torque and HP come from more top end RPM or lower RPM breathing?  What goals are there for fundamentals like piston size, rod stroke, combustion chamber volume & shape, valve size, compression ratio and cam profile?  On the secondary items, how will the fuel mapping take place and how will you get an aftermarket ignition controller installed?  Once all this is settled, it's time to look at air intake, intake runner length, header shape, length and exhaust system.  While thinking things over, it's also time to dig out the plastigauge, micrometer and scales  for a little blueprinting and balancing.

 

On the other hand, I'm pretty sure that an inexperienced person could do a fair amount of harm if they try to do shaping beyond just polishing.  I have had the cylinder head off my '04 FJR, I've looked at the intake runners and cylinder head pockets (hardly a pocket) and decided that the 2 - 5 hp wouldn't be worth the work.

 

CylHeadAirPort1.jpg

 

Look at all that opportunity to polish!  Man, just makes ya want to break out the pneumatic hone...  It sure makes a feller want to smooth, blend and knife edge shit.

 

CenterIntakePortsm.jpg

 

EndIntakePortsm.jpg

#17 Viper Pilot

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Posted 16 September 2016 - 05:23 AM

Why not look into turbo charging? With the relatively low compression I would think just some exhaust fabrication and custom dyno tuned fuel map would be the fastest way to boost up the power.  Folks with Busas did this many times.

#18 fljab

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Posted 16 September 2016 - 05:30 AM

Hey, my thoughts are if you have the head off, or have a spare, and want to take the time or know someone you trust, it can't hurt to do some cleanup of the head.  Smoothing out the passages, port matching, and bow blending behind the valves are all things that do help in many cases.  I do think, as has been said above, that if it's done wrong it can hurt, but WTH, go for it.

 

It does get you on the "slippery slope" of how much to do and what is too much.  I know my old 100K mile + stock '09 is plenty fast for me and I like how it will run anything for fuel and if you have a situation that you must use power to get out of, a gear or two will pull up the warp drive and get it done.

 

Can that be improved? Yes, and maybe, it's just not something we normally do because of the nature of the beast that FJRs are.  This means you can be a true FJR pioneer!  Let us know how it works out.

#19 Bustanut joker

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Posted 16 September 2016 - 08:18 AM

Well, allrighty then, the falsus nomen Flying Pig Project  

 

flying-pig-02.png

 

Why do you get yourself into these mind boggling debates Alan?
You know no matter what you say you're going to get the hard heads who don't understand logic or facts.

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#20 Bungie

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Posted 16 September 2016 - 09:25 AM

My 2 cents. Put the bike on a diet (I don't think you can stand to lose much). Next, change the gearing.  Wasn't the VMax final gear set a direct swap and you gain a 10% reduction, your 03 had the 'good' primary gear set from the factory. Throw in a heavy duty clutch while your at it.

 

I'm sure the Gen1's will haze the tires in first and likely the top of second as it sits from the factory, so, you'll need to address the traction issue.

 

Of course, I'm assuming this is all for quarter/eighth mile drag times. Your bike with these mods will lose no reliability or longevity because the engine has stayed stock. You'll still be able to tour with out destroying the bike prematurely.

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Posted 16 September 2016 - 09:45 AM

...Put the bike on a diet (I don't think you can stand to lose much...

 

Hence The Flying Pig Project.  Removing 200 lbs would be an awesome way to get the rig to be quicker and faster without having to do anything to the engine.  Simply change from shaft drive to chain drive and get about 9%-11% more power to the rear wheel without having to do anything to the power production part of the engine.  The shaft to chain drive conversion should get ya about 30 of the 200 lbs that porky needs to lose.

#22 DennisJ

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Posted 16 September 2016 - 10:22 AM

Where is the weight reduction going to come from?   If 1/8 mile or 1/4 mile performance is what you want then the saddlebags are easy to remove.  A shorter windshield tilted back (Rifle blocks?)  I think the fairings are well optimized so you don't gain anything removing them except more drag.  Rider weight reduction may be an alternative.  I lost 40 lbs. after my 2012 accident.  Was around 195 and 6 ft even' made a huge difference in my insulin requirements and I think the front end is lighter on the 1 - 2 shift when I have poor judgement.  If there are other weight reduction possibilities that don't adversely affect the touring capabilities, comfort and just plain fun of the FJR I am interested but don't see the need for greater acceleration.  

#23 BkerChuck

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Posted 16 September 2016 - 12:00 PM

If weight reduction is your goal there are a lot of places you can work from. None of them are likely to be cheap though. Carbon fiber bodywork? Titanium axles and fasteners? Lithium ion battery? Strip unnecessary parts like passenger footrests, swap exhaust to something lighter and better breathing.

 

I watched a former coworker attempt to remove over 180 pounds from a ZX11 Ninja several years ago. He went so far as to machine his own titanium axles as none were offered commercially.He removed the engine counter- balancers to lose weight, and rifle drilled as many fasteners as he could.

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#24 ionbeam

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Posted 16 September 2016 - 12:26 PM

I was trying to illustrate a point with the Flying Pig, to go quick and fast the bike needs to be light.  If the bike can't be light then when hot rodding the engine the power output profile will have to be favorable for moving mass, which probably won't make for a good sport/tour power profile.  In my first post I was indicating that a good engine build program needs goals and engine power improvement is a system, you can't modify one element in the middle and expect the whole system to get a lot better.

 

Power adders are great but again, they aren't really easy to install and get dialed in for acceptable daily use.  Things like NOS is really for track only WOT operation.  Positive pressure solutions really need a thicker head gasket to reduce compression.  Turbos come with a snakes nest of tubing.  Supercharging has a lot of parasitic drag and is noisy.  Electric superchargers will cook the FJRs electrical system.  But most of all, the FJR's spark timing is not accessible and you would have to install an aftermarket ignition system to take advantage of most of the power adders.

#25 Fred W

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Posted 16 September 2016 - 02:01 PM

*
POPULAR

There is no question that it could be done.  You could spend (an exorbitant amount of) time and money and make an FJR1300 engine put out upwards of around 200 hp.  Any 1300 cc engine can do that given enough modifications and money.  So as a design challenge it could be done.

 

The more salient question would be: Why bother?  You could just start out with a Ninja 1400 that is already so much lighter, and more highly tuned, and isn't carrying all those expensive creature comforts that we all love on a 700 mile day, and that you'd have to throw in the trash, because they all weigh down the bike horribly. 

 

It's really a bunch of pretty simple physics problems to solve: 

If you want to be quick, you need high torque and low mass. 

If you want to be fast you need good aerodynamics and high horsepower  

If you want to be quick and fast you need minimum weight, maximum torque, and maximum horsepower,

And depending on how long the run is going to be, efficient aerodynamics will come into play.

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#26 hppants

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Posted 16 September 2016 - 03:29 PM

All other things being equal (which they are not), I think the wind plays a big part on this. Getting yourself low, with your helmet tucked behind the windscreen and your legs tucked in well behind the fairings is a big deal.

You can't make the FJR a sport bike. At some point, the ergonomic ends will never justify the means.

I agree with Fred - save yourself a lot of headache, heartache, and money. Sell the FJR and buy a liter sport bike. 
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#27 900gc

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Posted 16 September 2016 - 06:48 PM

There is no question that it could be done.  You could spend (an exorbitant amount of) time and money and make an FJR1300 engine put out upwards of around 200 hp.  Any 1300 cc engine can do that given enough modifications and money.  So as a design challenge it could be done.

 

The more salient question would be: Why bother?  You could just start out with a Ninja 1400 that is already so much lighter, and more highly tuned, and isn't carrying all those expensive creature comforts that we all love on a 700 mile day, and that you'd have to throw in the trash, because they all weigh down the bike horribly. 

 

It's really a bunch of pretty simple physics problems to solve: 

If you want to be quick, you need high torque and low mass. 

If you want to be fast you need good aerodynamics and high horsepower  

If you want to be quick and fast you need minimum weight, maximum torque, and maximum horsepower,

And depending on how long the run is going to be, efficient aerodynamics will come into play.

You mean I can't get all this from polishing the ports? Dang...no2.gif

#28 HotRodZilla

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Posted 16 September 2016 - 11:35 PM

Sure, polish the ports and blueprint the motor. That will take weeks, just because it's a time consuming PITA. For those that may not know what true blueprinting is, it requires plastiguage, patience and access to parts. Put a bearing in, torque the bolts and then pull it apart and measure the clearance. If it's out of spec, replace the bearing and do it again. A good blueprinted engine will spin for 30 seconds plus with just a hand spin. It's cool.

Really, one could probably bolt the motor back together and run it just like that, with a few extra horses, simply from the printing; but all that work to run regular fuel and the same compression? For a couple of horses?? Shit, if my fat ass lost 40 lbs, that wold have the same effect. In reality, once the blueprinted motor is back together, it's time to start thinking intake, exhaust, high compression, fuel delivery. ALL the things Ionbeam mentioned on the previous page. That's cool for track days, not so much for 700+ mile days with good fuel economy and hardcore reliability.

You outta do it Falsus and let us know how it goes! 

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#29 Bungie

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Posted 17 September 2016 - 07:13 AM

Back in my bracket racing days (340 Duster), I got it into the 13's on street tires from the high 14's without spending a nickel on the engine.

 

Multiplying torque (high stall converter, 4:10 gear set) and chassis mods to put the power on the ground (Pinion snubber, baffed shocks in the front etc) made all the diff.  Probably could've got it into the 12's going berserk unbolting shit to shed weight. But I still needed it to get to work in the rain on Monday morning.

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#30 Bounce

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Posted 17 September 2016 - 07:39 AM

Good point. So many people head to the engine mods first without considering how to improve how they get the existing power to the ground.

 

The current issue of MCNews (US) has a good article about spending chunks of time and money chasing tidbits of improvements.

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#31 Geezer

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Posted 17 September 2016 - 07:45 AM

Polishing the places where air flows sure looks nice, but the results may not be what you expect. A little turbulence can sometimes increase flow volume  due to a lot of things that I don't want to understand. Enlarging the ports may help if there is enough material to allow for that, but without a change in valves and/or cams you won't gain much. IMHO, a turbo charger is the best way to go even with all the plumbing. Modern turbo technology has gotten to the point where lag is barely noticeable and the cost is almost reasonable. 

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#32 falsus nomen

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Posted 20 September 2016 - 01:09 AM

Ok Ok Ok So it's a complete waste of time. the manufacturing process has advanced to the stage we are now forced to accept nothing can be done to remotely give us an edge.

Guess me putting mothballs in the tank isn't worth killing the little fukers for the miniscule increase in performance then.. The tree huggers are now going to be knocking down me door!

 

Agreed. There is always ways to smooth out flow and increase fuel air mix.

 

 

Keep in mind, some of our bikes were cast over 15 years ago. 

 

 

Well, allrighty then, the falsus nomen Flying Pig Project  

 

flying-pig-02.png

 

How to make 650 lbs fly quicker, faster and higher.

 

All hot rodding items on the table.  First, let's design the project (OMG, an engineering plan on which to stage a project).  First, what target power level are you aiming for? What kind of Sport/Tour driving experience will the upgraded engine provide?  Will the torque and HP come from more top end RPM or lower RPM breathing?  What goals are there for fundamentals like piston size, rod stroke, combustion chamber volume & shape, valve size, compression ratio and cam profile?  On the secondary items, how will the fuel mapping take place and how will you get an aftermarket ignition controller installed?  Once all this is settled, it's time to look at air intake, intake runner length, header shape, length and exhaust system.  While thinking things over, it's also time to dig out the plastigauge, micrometer and scales  for a little blueprinting and balancing.

 

On the other hand, I'm pretty sure that an inexperienced person could do a fair amount of harm if they try to do shaping beyond just polishing.  I have had the cylinder head off my '04 FJR, I've looked at the intake runners and cylinder head pockets (hardly a pocket) and decided that the 2 - 5 hp wouldn't be worth the work.

 

CylHeadAirPort1.jpg

 

Look at all that opportunity to polish!  Man, just makes ya want to break out the pneumatic hone...  It sure makes a feller want to smooth, blend and knife edge shit.

 

CenterIntakePortsm.jpg

 

EndIntakePortsm.jpg

 

Thank you for the pictures. There is clearly plenty of room for a larger intake valve, and possibly even a larger exhaust valve. 

 

 

I have had plenty of flying pig projects, this should be nothing new. I've nitrous'ed Acura Legends, supercharged several trucks, 

 

I was trying to illustrate a point with the Flying Pig, to go quick and fast the bike needs to be light.  If the bike can't be light then when hot rodding the engine the power output profile will have to be favorable for moving mass, which probably won't make for a good sport/tour power profile.  In my first post I was indicating that a good engine build program needs goals and engine power improvement is a system, you can't modify one element in the middle and expect the whole system to get a lot better.

 

Power adders are great but again, they aren't really easy to install and get dialed in for acceptable daily use.  Things like NOS is really for track only WOT operation.  Positive pressure solutions really need a thicker head gasket to reduce compression.  Turbos come with a snakes nest of tubing.  Supercharging has a lot of parasitic drag and is noisy.  Electric superchargers will cook the FJRs electrical system.  But most of all, the FJR's spark timing is not accessible and you would have to install an aftermarket ignition system to take advantage of most of the power adders.

 

The sport touring profile isnt ideal, but as you stated, the engine is a system, and there are clearly some weak points restricting it.

 

Power adders are an afterthought for a bike. If you can't do it with engine, you are doing it wrong. I have considered a turbo for one of my bikes, but not the FJR.

 

There is no question that it could be done.  You could spend (an exorbitant amount of) time and money and make an FJR1300 engine put out upwards of around 200 hp.  Any 1300 cc engine can do that given enough modifications and money.  So as a design challenge it could be done.

 

The more salient question would be: Why bother?  You could just start out with a Ninja 1400 that is already so much lighter, and more highly tuned, and isn't carrying all those expensive creature comforts that we all love on a 700 mile day, and that you'd have to throw in the trash, because they all weigh down the bike horribly. 

 

It's really a bunch of pretty simple physics problems to solve: 

If you want to be quick, you need high torque and low mass. 

If you want to be fast you need good aerodynamics and high horsepower  

If you want to be quick and fast you need minimum weight, maximum torque, and maximum horsepower,

And depending on how long the run is going to be, efficient aerodynamics will come into play.

 

Interesting point.  I have a bike that can hang with a ninja 14, and its only 675, but modded to hell. I have built and run/raced the following:

Texas top sportsman: 400 smallblock with 300-200 dual stage nitrous on top, 4.70 1/8 mile breakouts.

                                  586 Supercharged, no nitrous

Street: Grand prix GTP , ported supercharger, full build of a GM 3600, 12.4

            Acura legend, headers, chip, 125 shot nitrous, 13.1 (best mod was timing, advance of 31 degrees over stock gave an extra 70 hp)

            Chevy 5.3L with supercharger

            Corvette LT1, all motor, stock bottom end 420 hp, full suspension, built for road racing (still own)

            Ford Lightning, upgraded supercharger, 6 speed conversion

            Triumph street triple, daytona cams, full exhaust, weight reduction, custom tune

 

I have built and raced everything from 6200 lb trucks to 370 lbs bikes.  In my mind, the FJR is not a pig.

            

 

So, yes, I do have specific goals for a build.  I would use the '16 6 speed, with the longer rear gearing spline.

 

I dont need to hit 1/4 mile times with the FJ, I can do 10 flats or high 9s with my triumph street triple build.

 

I would like to cruise at 90, at about 4k. I would like it to need minimal maintenance. And be the meanest sport touring on the block

 

 

An engine is an air pump.  Thermodynamics says you can ignore irrelevant aspects such as fuel when designing. Cam, Intake, Exhaust, or cam mods can only produce more air flow, and more air flow is more power. After that, it is just adding the right fuel quantities and timing the spark.

 

 

Polishing the places where air flows sure looks nice, but the results may not be what you expect. A little turbulence can sometimes increase flow volume  due to a lot of things that I don't want to understand. Enlarging the ports may help if there is enough material to allow for that, but without a change in valves and/or cams you won't gain much. IMHO, a turbo charger is the best way to go even with all the plumbing. Modern turbo technology has gotten to the point where lag is barely noticeable and the cost is almost reasonable. 

 

Exactly Geezer. I have never seen a quality p&p not result in a gain in HP. Its all about flow control and adding a little turbulence can increase power to a large extent. 

 

Also, I already have some friends working on a new cam profile for me. So there is that.

#33 hppants

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Posted 20 September 2016 - 05:32 AM

A taller tire might get you the gearing you are seeking, with the 6 speed. You could also consider using the pumpkin from the venture, which has a taller ring/pinion combo. That makes your performance objective and increased horsepower/torque demands even higher, though.

I get it - it's about the journey. If no one ever said "What if?", we'd still be living in caves, I suppose.

Wait a minute.... really I DON"T get it.

I do get what you are saying, and your thinking behind the issue, but I don't "get it". Obviously, this is enjoyment for you and you are quite good at it based on your experiences. Personally, I like doing preventative maintenance, and the occasional repair (if someone else tells me which part to change). But I'd much rather ride the bike than work on it.

But that's OK - I don't have to get it. I hope you break new ground with your project. I'll be reading every step of the way. I would recommend you keep the butt dyno out of it. Qualify your gains objectively, and leave no doubt. Offer even the details - weather conditions, fuel type and grade, oil type and grade, clutch condition, etc.

Otherwise, I'm subscribed to the Flying Pig Project. 
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#34 Bounce

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Posted 20 September 2016 - 08:21 AM

An engine is an air pump.  Thermodynamics says you can ignore irrelevant aspects such as fuel when designing. Cam, Intake, Exhaust, or cam mods can only produce more air flow, and more air flow is more power. After that, it is just adding the right fuel quantities and timing the spark.

 

So, at what point does the increased flow of air and fuel trade HP for distance because your MPG drops enough to make gas stops more frequent? Elapsed times can often be more about time with the wheels turning than top speeds (or quickness).

 

I'll admit that it's because I have a different mind set than you. A lot of us chase the next mod. Yours just happens to be the motor while mine is often electrical (heck, my Marshall amp didn't stay stock for long either). But I will also admit that this thread made me think about "granny shifting; not double clutching like ya should". wink.png

 

 

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#35 falsus nomen

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Posted 20 September 2016 - 11:23 AM

A taller tire might get you the gearing you are seeking, with the 6 speed. You could also consider using the pumpkin from the venture, which has a taller ring/pinion combo. That makes your performance objective and increased horsepower/torque demands even higher, though.

I get it - it's about the journey. If no one ever said "What if?", we'd still be living in caves, I suppose.

Wait a minute.... really I DON"T get it.

I do get what you are saying, and your thinking behind the issue, but I don't "get it". Obviously, this is enjoyment for you and you are quite good at it based on your experiences. Personally, I like doing preventative maintenance, and the occasional repair (if someone else tells me which part to change). But I'd much rather ride the bike than work on it.

But that's OK - I don't have to get it. I hope you break new ground with your project. I'll be reading every step of the way. I would recommend you keep the butt dyno out of it. Qualify your gains objectively, and leave no doubt. Offer even the details - weather conditions, fuel type and grade, oil type and grade, clutch condition, etc.

Otherwise, I'm subscribed to the Flying Pig Project.

 

Engines are what I know. If you cant tell from my post, I have modded / raced all sorts of things.  I don't need a "race prepped" style bike, I have a little triumph if I want to hit the track.

 

I want something streetable, that I can take out and ride every day, but just a bit more kick.  There are a lot of small things you can do, that add up, for example, on a small block chevy, you can go with an electric water pump, instead of chain driven, which frees up ~4-8 HP, depending on what its pumping out. Increases are really Percentages, not necessarily a HP number. Add up enough small percents and you can make a huge difference. 

 

 

 

I am here to learn about motorcycle suspension (i know very little).  I'll share what I know about engines. 

 

An engine is an air pump.  Thermodynamics says you can ignore irrelevant aspects such as fuel when designing. Cam, Intake, Exhaust, or cam mods can only produce more air flow, and more air flow is more power. After that, it is just adding the right fuel quantities and timing the spark.

 

So, at what point does the increased flow of air and fuel trade HP for distance because your MPG drops enough to make gas stops more frequent? Elapsed times can often be more about time with the wheels turning than top speeds (or quickness).

 

I'll admit that it's because I have a different mind set than you. A lot of us chase the next mod. Yours just happens to be the motor while mine is often electrical (heck, my Marshall amp didn't stay stock for long either). But I will also admit that this thread made me think about "granny shifting; not double clutching like ya should". wink.png

 

 

 

To each their own. I have my necessary creature comforts, and I would like some more kick. I do a lot of high speed superslab, and plenty of highway 1 corners. 

 

Yes, you do consume more fuel per RPM.  But if you have longer gearing, you can run at lower RPM, balancing that out, so the only side effect is speed.

 

 

 

 

I guess I need to find a short block and get to work:

 

Bottom end probably doesn't need touched, possibly oil squirters?

Head to a pro, see what we can do about valve sizing, port and polish.  Possibly deck the head for a little more comp?

Cams off to a buddy to see about a regrind or if some other bike cam would have what I am looking for.

Fuel adjustment can come with a Power Commander....

Only major issue I see is with ignition timing.....

#36 Canadian FJR

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Posted 20 September 2016 - 02:44 PM

Do it and do it big.

Looking forward to this.



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From the tropics of Canada

#37 rushes

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Posted 20 September 2016 - 02:55 PM

:popcorn:

Glad my bike is capable of going faster than I can ride it already!  :)

I love this stuff tho...

#38 Canadian FJR

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Posted 20 September 2016 - 04:28 PM

https://www.barnettc...10-fjr1300.html

This may be useful for your build.
I am currently using one in my '03.


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From the tropics of Canada

#39 falsus nomen

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Posted 20 September 2016 - 04:50 PM

All hot rodding items on the table.  First, let's design the project (OMG, an engineering plan on which to stage a project).  First, what target power level are you aiming for? What kind of Sport/Tour driving experience will the upgraded engine provide?  Will the torque and HP come from more top end RPM or lower RPM breathing?  What goals are there for fundamentals like piston size, rod stroke, combustion chamber volume & shape, valve size, compression ratio and cam profile?  On the secondary items, how will the fuel mapping take place and how will you get an aftermarket ignition controller installed?  Once all this is settled, it's time to look at air intake, intake runner length, header shape, length and exhaust system.  While thinking things over, it's also time to dig out the plastigauge, micrometer and scales  for a little blueprinting and balancing.

 

On the other hand, I'm pretty sure that an inexperienced person could do a fair amount of harm if they try to do shaping beyond just polishing.  I have had the cylinder head off my '04 FJR, I've looked at the intake runners and cylinder head pockets (hardly a pocket) and decided that the 2 - 5 hp wouldn't be worth the work.

 

 

I was trying to illustrate a point with the Flying Pig, to go quick and fast the bike needs to be light.  If the bike can't be light then when hot rodding the engine the power output profile will have to be favorable for moving mass, which probably won't make for a good sport/tour power profile.  In my first post I was indicating that a good engine build program needs goals and engine power improvement is a system, you can't modify one element in the middle and expect the whole system to get a lot better.

 

Power adders are great but again, they aren't really easy to install and get dialed in for acceptable daily use.  Things like NOS is really for track only WOT operation.  Positive pressure solutions really need a thicker head gasket to reduce compression.  Turbos come with a snakes nest of tubing.  Supercharging has a lot of parasitic drag and is noisy.  Electric superchargers will cook the FJRs electrical system.  But most of all, the FJR's spark timing is not accessible and you would have to install an aftermarket ignition system to take advantage of most of the power adders.

 

This hits the nail on the head.  However, it doesn't need to be a track day build, just a nice tuned up build. Turbos on a bike are a mess, and NOS is only good for shorts bursts when you are at WOT. Electric turbo/superchargers are all bullshit anyway. Not a big enough engine to drive a reasonably sized twin screw blower, so thats out, plus there isnt a lot of room.

 

 

1. I don't see any need to alter intake runner length, or header primaries, the power delivery range is fine. Powerband doesn't need to be shifted up much, mostly just increase breathing. A slightly shorter intake runner might help a little bit for top end breathing.

2. FJR is already oversquare. 79.0 mm × 66.2 mm.  Not as much as a ZX-14 (84x65), but still, enough that it can rev.  With a slightly shorter runner, could probably make better power out to 10k. Rod stroke is fine. Unless valve clearance is tight, stock bottom end should be ok.  If the valve clearance is really tight, so that not much can be done, then punching it out .020" and doing a different piston shape for valve relief and higher compression would be an option, but would want the same wrist pin height, skirts, same rod length, etc.

3. Combustion chamber / Compression.  A little extra compression would be nice. As long as the valve clearance is ok, you can mill the head to create slightly higher compression. I don't see a need to alter the combustion chamber size/shape, just clean it up for better airflow.

4. Cam, Timing, LSA, valve springs. Need to check valve clearances before going into this. With a little more lift and duration, but no change to overlap (or very slight), the powerband can stay the same, just breathe a little better.

 

5. Fuel and Timing.  That is yet to be seen, but open to ideas.  

#40 fjrob1300

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Posted 20 September 2016 - 04:55 PM



Whazzup anyway, too much white stuff in Alberta you're looking for something to do or drain your wallet....... ?????

Ummm Canadian FJR not Canucklehead. Scott's a true Bluenose from Nova Scotia 

wwwooooohhhhoooohhhoooo...that's a lotta throttle 
We have time to think of the ones we love while the miles roll away, the only time that seems too short is the time that we get to play"
Why yes , I think I've been there.
YES! Don Stanley is my friend. I'll miss Don. So long Petey.

falsus nomen

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Posted 24 September 2016 - 12:00 AM

Apparently mr ionbeam, tough guy trash talker ..... has nothing to say. Yes, I know what I am doing. Sorry you were such a chump for pulling your heads and not doing anything with them.

#42 ionbeam

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Posted 24 September 2016 - 04:01 AM

^^^^^ Then again, that trash talking ionbeam may be typing this on this cell phone 1,000 miles from home at EOM and it's grossly inconvenient to reply.

#43 mcatrophy

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Posted 24 September 2016 - 06:10 AM

*
POPULAR

Apparently mr ionbeam, tough guy trash talker ..... has nothing to say. Yes, I know what I am doing. Sorry you were such a chump for pulling your heads and not doing anything with them.
If that was intended to be sarcastic, please add a suitable smiley.

If it was serious, I'd suggest a more conciliatory turn of phrase.

I don't always agree with everything Mr Chump says (though it's rare for me to disagree), but I always respect his opinions and advice, as do 99.9% of this Forum's members.

Note the number of posts to his name. Whilst post whoring doesn't necessarily mean knowledge and experience, in his case quantity definitely does.

Sit back, have a cold one, and please use a somewhat less antagonistic style to your posts. You may well have useful input for us, but insulting ionbeam will cause the majority here to ignore your input.

:drinks:

mcatrophy
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#44 HotRodZilla

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Posted 24 September 2016 - 01:24 PM

Yeah, I'm gonna wait this one out and see if maybe we we're being kidded, before throwing a good quality FU out 

"Direct on the training and cutting off Gordon's head."

---One of my guys...03/31/2017

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#45 falsus nomen

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Posted 07 October 2016 - 12:23 AM

Apparently mr ionbeam, tough guy trash talker ..... has nothing to say. Yes, I know what I am doing. Sorry you were such a chump for pulling your heads and not doing anything with them.
If that was intended to be sarcastic, please add a suitable smiley.

If it was serious, I'd suggest a more conciliatory turn of phrase.

I don't always agree with everything Mr Chump says (though it's rare for me to disagree), but I always respect his opinions and advice, as do 99.9% of this Forum's members.

Note the number of posts to his name. Whilst post whoring doesn't necessarily mean knowledge and experience, in his case quantity definitely does.

Sit back, have a cold one, and please use a somewhat less antagonistic style to your posts. You may well have useful input for us, but insulting ionbeam will cause the majority here to ignore your input.

drinks.gif

 

He clearly asked for an engineering plan, I gave one. He mocked my ideas, and gave none of his own. I refuted every point he made. No response.

#46 ionbeam

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Posted 07 October 2016 - 03:42 AM

He mocked my ideas

 

That wasn't my message.

 

I refuted every point he made.

 

Then there is nothing left to be said.

#47 Bungie

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Posted 07 October 2016 - 04:56 AM

ionbeam owns the interwebs.

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#48 Geezer

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Posted 07 October 2016 - 05:31 AM

It is all too easy to feel like someone is competing or putting you down when responding to a post. That is the nature of the medium. I felt that way a couple of times when I first joined a forum (actually, it was the usenet news groups back then). Some places you will find asshats who do that to boost their own ego, but we rarely see that here. People here are trying to be genuinely helpful. We do have our personalities, but that is part of the fun. This is a welcoming, helpful, polite group. 

'Frodo, It's a dangerous business, going out one's front door'

#49 08FJR4ME

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Posted 07 October 2016 - 05:32 AM

No need for this so let's keep it civil. It is an interesting project and I hope you can post up some pic's if you go through with it. It will add to the knowledge base for all. That being said I am happy with the bike as is and as Rushes stated. It is more capable than what I can do with it.

 

Dave

Without Rain nothing Grows, Learn to embrace the storms of your life.

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#50 Canadian FJR

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Posted 08 October 2016 - 03:17 PM

Yep, time to get this project back on track.

Please keep the updates coming.



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#51 Canadian Steve

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Posted 23 October 2016 - 05:51 AM

I have a friend with a C14 who delved into, what if's, with his bike .He is a much experienced engine builder.  Shoodabenengineering.com

 

Many threads on the journey on COG forum

 

With remapping work (lots of it, on road, not on dyno) he was able to totally transform a stock C14. It all started trying to smooth out the choppy on /off low speed throttle.

 

End result was huge . (An unexpected ,nor really sought after 15hp gain). But not even going there, the bike is night and day smoother to drive. It feels slower by the butt dyno, but is considerably quicker, because peakiness is gone, and it pulls like a train from 2000rpm up to 10,000rpm.A side effect has also been a mpg increase of 5mpg by majority of the , now 100's of C14 owners who have reflashed with his map.

 

 

Only adding this to show that thinking outside the box is not necessarily a bad thing.

Now the C14 engine has/had much more untapped potential than the FJR has with it's ram air intake, variable valve timing, and secondary throttle plates, but SISF still thinks there is some reliable upgrade potential to the FJR ,IF, you want to run Premium fuel, but as yet the FJR ECU has not been cracked.

 

His stock 2012 C14 was slightly faster in acceleration,(from my 14 FJR) from 1st gear rolling drag race starts to roll ons at any speed. After his final edition of his flash that he has taken to market, It will frankly embarrass my FJR in street style acceleration comparisons, while at the same time NOW (slightly)bettering it in fuel mileage .

 

Don't get me wrong, I still love my FJR and don't think I would trade for a C14 (as I feel for a smaller guy (5'8") the FJR is a better fit) BUT had the new 2014 C14 performed as they do with his flash, I never would have tried the FJR because I was disappointed with the C14 driveability.

 

Very interested to see improvements without effecting reliability that can be brought to the FJR.

 

Also admitting that I, really have no need for anything better than the FJR as it is , EXCEPT to tune out the on off throttle snatchiness at low rpm.

 

Back to regular programminggrin.gifofftopic.gif

" Experience is a hard teacher because she gives the test first and the lesson afterwords"

 

 

2014 FJR "Rootbeer"

2015 DR650SE

 

 

 

 

#52 Hudson

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Posted 23 October 2016 - 09:59 PM

Falsus, you lost me at "I put nitrous on my Acura Legend."

 

Just cause something can be done doesn't mean it should be done.

 

Just post lotsa pics. Preferably on Friday.

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