Quote:
Originally Posted by alesserfate
good to know that im not alone in this, you guys got more things dead on as well
-yes my car has hks cams (256 or 264 i don't remember anymore)
-the IACV is a fresh one and worked great on the motor it came from (fresh sr from a front clip, and I cleaned it out good before installing it onto the greddy intake manifold
-i have splitfire module and coilpacks for ignition
so now looking at the solutions that some of you suggested
- I don't have fc datalogit nor know how to use it, so i would not be able to back up my tune and relearn the idle
- I have not changed anything in my engine bay since doing the relearn, cams and everything etc were already installed as it wouldn't make sense to tune my car without the cams and then install them
- the only thing I can think of is that there were no headlights on my car when it was being tuned, so we used the blower motor to simulate the electrical load
I have come to accept the way it idles and what not and drive it around, but it just gets on my nerves sometimes. Anyway, don't know what to do next whether to leave it or..
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From all of the stuff that I have read, the best way to "stabilize" the idle with big-ish cams like this is:
1) Richer mixture, like maybe even 13.5 or something
2) Higher idle to get a more stable, less pulsating flow (maybe as high as 1100 RPM)
3) More timing than you would usually see at idle (maybe in the mid 20's or something).
Mine doesn't ALWAYS do it.....once it is stable, it won't start bouncing around.
It is usually only when the car is cold or when I slow down quickly from higher revs.