Why after cam install would higher idle be rougher?
04-11-2002, 07:16 PM
#1
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Why after cam install would higher idle be rougher? I read on here somewhere, that after cam install raised idle was rougher than lower idle, i have found this condition with my own car and wondered if any body had the answer for this? Is it a A/f ratio issue that needs programming to sort out? <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" />
04-13-2002, 06:53 AM
#4
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Re: Why after cam install would higher idle be rougher? John, i raised idle speed from stock 800 to about 900 with 13/64's tb hole with a slight tweak on idle screw, no hi idle codes, just missfire codes.
It doesnt idle real bad just it shakes car harder at 900 than it does at 800. So why raise it you might ask? Well it cleaned up exhaust smell by raising it, and i hoped to maybe stifle missfire codes.
It doesnt idle real bad just it shakes car harder at 900 than it does at 800. So why raise it you might ask? Well it cleaned up exhaust smell by raising it, and i hoped to maybe stifle missfire codes.
04-13-2002, 06:58 AM
#5
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Re: Why after cam install would higher idle be rougher? John, i have been posting my results with cam i dont know if you saw them, i went from personal best of 13.20 at107.5mph to a 13.10 at 109.5 mph, i made gains over this but not without changing other things like dropping stock y pipe and borrowed slp lid and filter. I think raising rev limit would gain decent results with this cam.
