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Old 07-26-2005, 11:45 AM   #434 (permalink)
mjannusch
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Default Re: AEM Ultimate Resource Thread>>>>

Quote:
Originally Posted by slava
so ,AEMsays i can only open inj for 0.01sec but actual window is 0.02s(two crank rev).
Does that mean that injection occurs only during every second crack rev? so it is possible to override the duty to 110% and 200%.
Why can't i run them at 100-110% ?????
You aren't running Boost Compensation or anything else like that? If so, you need to add on the additional pulsewidth from the compensation to get to your IDC value that the AEM is showing you.

fuel value * mSecbit * boostcomp% = 250*.000040 * 2.00 = 0.02
(assuming boost compensation of 200% at 1 Bar and other things constant) = 100% IDC.

If you need more fuel before compensation, or don't want to run boost comp then you need to use higher microsecond/bit numbers. You can't get to 100% IDC if msec/bit is too low to support it.

fuel value * mSecbit = 250*.000080 = 0.02

...and really you don't want to run much above 85% IDC because your injector coils may overheat and fail.
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