Quote:
Originally Posted by MC@Performance Fab
The fly by wire isn't your problem. All the late model stuff running 2 butterfly's are fly by wire, it helps the torque on those quite a bit.
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Mac
The double butterfly throttle bodies are indeed fly by wire. The computer takes engine parameters such as rpm, map, and throttle position to open the secondary's at the proper speed to make the motor smooth and ridable. This is controlled by the ECM, for street riders they also must factor in the inexperienced rider doing something stupid and high siding the bike because they used too much throttle at a too rapid of an opening speed. (We called it grabbing a hand full.)
The racing ECM's have provisions for changing the action of the secondaries better suiting them for more experienced racers or by keeping them open all the time. We chose to remove the secondaries altogether and re-map the ecm accordingly. This helped a little in the case of the zx10r but then acceleration was never really a problem with the Kaw.
Yamaha YEC racing kits chose to do away with fly by wire system all together.
Here comes the whole can of worms all over the place.
Read and enjoy!!! The only thing wrong with YEC is Mr Engler makes a fix that is probably cheaper!!!! You just can't protect racers from them selves.
http://www.yamaha-racingparts.com/do..._YZF_R1_EN.pdf
SEE page 57 & 60 of 96
Honest Dad himself
