Quote:
Originally Posted by ztan
Interesting.
I was about to try this on my car, as I was wondering if going from 0 to 20 or 50% PI and back across load/rpm cells was making some fueling erratic by putting the PI pulsewidths in the non-linear range like the problem switching PI on and off in low loads at idle.
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1 of my goals was to get rid of the dip and the dip starts when they turn off PI and change the cam timing and a few other things....
I don't know why you would turn PI on, off and on again.... Running both will smooth it out... At mid load I have no dip in acceleration.... I think turning off PI and the exhaust cam timing is for emissions not performance...
This will never be a drag car so I'm tuning for drive ability and passing power... So I am currently running this on my butt dyno for now till I get the maps sorted out... It doesn't take a genius to know if something works or not...
I'm getting to the point I have to dyno it and start doing 0-60s to sort out the small details... But it runs way better than stock at all rpms...
I don't know if running PI all the time will help HP on a dyno but it will make the engine run better and eliminate 2 transitions that help to cause lag and hesitation...
Just flash it and drive for a day if you don't like it just flash back...