Can you describe how's the power delieve when CBR954 fuel injection system swaping on CBR929 ?
Do you have any dyno map when it on? How much HP increased ?
Compare to CBR954..... When the CBR954 fuel injection system on CBR929rr !
I'm doing this mod now...I may need your help to put on it..
Not really as my bike was not stock when I did the swap.
I have a full Akrapovic exhaust system and no charging or starting systems so my engine spins up quicker than stock and already has less midrange than stock. Fitting the full Akra meant I couldn't let it drop below 8000rpm through the turns or I'd lose pull off the exits. Not a big deal as I only drop under 8K if I get baulked or make a mistake in the entry, but I have to be more aware of it than I did when I was running the LeoVince half-system before that. I have never ridden a stock 929 although I have ridden one that only had an aftermarket muffler on it.
I fully expected to have to make significant changes to the then-current LeoVinci map but was surprised to find it ran just fine so I never messed with it. Bump starting it from cold was definately more difficult but I only need do that once every race day so I never tried improving it. I didn't find any further significant losses in the midrange on top of the Akra system. No, I haven't dynoed it since '04 when I put the LV half-system on.
I would _guess_ the throttle bodies on their own _might_ net 5hp at the top end of the curve.
Keep in mind that the 954 only makes 10hp more than the 929 and that comes from a whole line of changes, starting at the 1mm-bigger pistons right through to the lighter rear wheel. I would expect the throttle bodies to play the biggest role in acheiving that 10hp but I doubt they bring more than half of it. The 954 has lighter crank, rods, pistons, rotor and cams so it spins up faster. It has nearly 3% greater engine capacity, slightly higher compression (due to the bore increase), slightly hotter cams, 10%-bigger throttle bodies, a much finer injector spray, a much faster ECU, a different muffler and a lighter rear wheel.
All of those changes give around 10hp or 9% more output over the previous 929. The throttle body swap is as simple as removing the 929 units and putting the 954 ones in. Everything goes back together just the same way.
I am currently swapping early CBR1000RR 44mm throttle bodies to my 929 along with the secondary injectors in the airbox and the complete 1000RR electrics to run it all. But I haven't fired the engine up with these yet. This is a much more involved swap as the throttle bodies are much larger in outside diameter and won't fit into the 929/954 intake manifolds so I had to fabricate new manifolds. It would certainly be worth porting the intake tracts as well but I haven't done this yet as I want to see how well they work on the stock 929/954 head first.
I am also fitting the 1000RR airbox which which is much taller and the ram air feeds into the bottom of the airbox through the gap between the top of the radiator and the frame - which is not wide enough on the 929 to be able to use the stock 1000RR intake ducting.