Ignition Timing Question
#21
#22
RE: Ignition Timing Question
It means everything if you are wanting to keep decel backfiring in check and not wanting to fry the o2 sensors.
Regarding the bottom right corner. I wonder if that is why when you pull away from a stop with a little to little clutch slip and a little too much throttle, the bike falls on it's face. (factory stock EFI map now but it did this when even totally stock) It's like someone just put out the fire.
AW
Regarding the bottom right corner. I wonder if that is why when you pull away from a stop with a little to little clutch slip and a little too much throttle, the bike falls on it's face. (factory stock EFI map now but it did this when even totally stock) It's like someone just put out the fire.
AW
#23
RE: Ignition Timing Question
ORIGINAL: whittlebeast
The air that the motor will continue to pump will be way cooler than any air fuel mixture if it is ignited, no matter when in the crank rotation this happens. Burning fuel at any time makes heat. I can get into the acceleration enrichment requirementsif you want, but for now...
Hope this helps
AW
The air that the motor will continue to pump will be way cooler than any air fuel mixture if it is ignited, no matter when in the crank rotation this happens. Burning fuel at any time makes heat. I can get into the acceleration enrichment requirementsif you want, but for now...
Hope this helps
AW
Anexampleconcerning the subject ofcooling thecombustion chamber by shutting off fuel completely. Some still feel that they do not want to "thermal shock" thechamber by constantly going from approx 1500 deg F to whatever temp the cold air may be duringconstant WOTacceleration and then fulldeceleration, such as occursin road race applications. Yes,injectingsome fuelfor some combustion during decelerationwill not cool as fast as unburned air but some feel that for example,changeing the tempsback and forth from 750 to 1500 deg isbetter, just another school of thought, as logical or illogical as it may sound.
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