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Discussion Starter #1
okay folks need some help as we all know and all want more power outta our bikes bike is a 2001 cbr 929

so heres a list of what i have on bike and im just trying to figure what parts i heard throttle bodies of a 954 add some power and theres talk about the cams aswell so if someone who has solid knowledge and has seen gains please tell me what i can do to my bike or what other parts i can get to make more power

so i have a pc3usb , ignition module , factory pro v stacks , full exhaust , bmc filter, bike is well maitained and runs great but want some more power any ideas besides punching it out or swapping the motor

come ideas please and solid ones only please
 

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I wouldn't bother swapping to 954 cams as the difference is tiny (unless yours are very worn, which is very unlikely).
The throttle bodies are a nice swap though.
954 wheels are a little lighter but 1000RR are lighter still.
 

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Discussion Starter #3
thorttle bodies are a good swap ? is it hard todo ? let me know i can turn a wrench just wondering if there is anything special that has to be done beside hookin them up in place of the old ones
 

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throttle bodies are a good swap ? is it hard todo ? let me know i can turn a wrench just wondering if there is anything special that has to be done beside hookin them up in place of the old ones
Takes maybe ten minutes. Prop the tank and remove the airbox.
Hardest part is getting to the intake manifold clamps.
You need to use the 954 injector harness as well.
You'll need to map via road testing, air/fuel logging or dyno.
 

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Discussion Starter #5
so if i buy a complter tb assembly everything i need should be there right ? sorry if questioon sounds a little dumb just wanna make sure and is this really worth doing or is it a waste of time ? so once on the bike i can just have tuned on dyno for best results right ? appreciate the help any info would be great anyother ideas for mods ??
 

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so if i buy a complter tb assembly everything i need should be there right ? sorry if question sounds a little dumb just wanna make sure and is this really worth doing or is it a waste of time ? so once on the bike i can just have tuned on dyno for best results right ? appreciate the help any info would be great any other ideas for mods ??
Yep, but check the fuel pressure regulator or replace it before fitting it as they have a limited life.
Dyno tuning would probably nett the best results for the least amount of time and money.
For the half hour it'd take you to swap them in and out again if you decide you don't like them I can't see any way of considering it to be a waste of time. Another member here just did it and was talking about dyno testing with no other mods but I don't know if he managed to do that yet.
The 954 puts out about 10hp or 8% more power over the 929. The increase comes from the 3% increased capacity, 2mm bigger throttle bodies with different injectors, 0.2 increase in compression ratio, ECU, cams, lighter pistons, different muffler and lighter rear wheel. I think the alternator rotor is lighter as well but I'd have to check that. As far as I'm aware the heads and porting are the same. Since the cams are barely different I think it is reasonable to assume that a very large part of that improvement is down to the throttle bodies and injectors - and the mapping to suit them.
As for other mods it depends on the results you're chasing.
You seem to have done the easy stuff other than 520 chain and lightweight sprockets.
The next step for power would probably be porting and milling the head, aftermarket cams, then magnesium or carbon wheels.
Power only helps in straight lines though. If you want to improve the bike overall start dumping excess weight and improving the suspension and brakes.
 

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Yup what bladeracer said. I got the 54 bodies in but haven't been able to complete the dyno time and a custom map. It was a long crappy day alot of driving around getting stuff just to find out my throttle position sensor was off so no tune until I get that fixed. It was really easy to change as long as the clamps are positioned in the right direction.
 

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Greg929,
Have you made the upgrade yet? I was reading through the thread because I wanted a little extra boost from my 929 as well. Only current add-on is a Jardine bolt on. I was curious about the outcome of the throttle body swap. Did you have to change out the injectors to the 954 set to match the new volume of flow from the throttle bodies?

Thank you,
Derek.
 

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i believe the ecu for the 954 processes twice as much information as the 929 ecu also. I am not 100% about this but i am pretty sure i read that in some post or magazine somewhere. For a finer tune that would be nice to have....bladeracer probably knows more about that. I dunno if it would be worth the money though since u would need new ecu, new gauge cluster and probably even more stuff off the 954, anyone know anything about this?
 

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i believe the ecu for the 954 processes twice as much information as the 929 ecu also.
I don't know if it processes twice as much (wouldn't surprise me though) but the 954 PC does adjust fueling in 250rpm increments instead of the 500rpm increments of the 929.
 

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yea that is what i was refering to, i believe the 954 is a 32 bit processor and the 929 is a 16bit processor, but i would imagine you would be able to get a much better tune in 250rpm increments than 500 rpm increments
 

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Discussion Starter #12
i got power commander pc3 usb and a ignition module does chaniging to 954 ecu matter with all that ?
 
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