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Cracking fuel compared to ECT fuel cracking

Posted: Tue Jan 19, 2021 2:30 am
by Dustin1717
I having a issue with hard starts, hot or cold (worse cold) sprintex supercharger with rdx injectors.... kit came with a tune which is about 85% correct.... I’m having major issues with starting mostly cold. Tune file has major adjustments on cracking fuel map, but zero adjustments on ect fuel cranking; what is the actual difference between these two at cold start.

Re: Cracking fuel compared to ECT fuel cracking

Posted: Tue Jan 19, 2021 12:31 pm
by KTuner
The main cranking fuel map, if you look, is based on RPM vs Manifold pressure.