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Location: Sugar Hill, GA
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You'll need to degree the cams to find out what degree it should be.
The thing I'm wondering is, those cams are setup just like a set of 2.0l stock cams. Seeing as they are designed for the 2.0l. That being said, I wonder if one of your cams is 180 out, particularly the intake cam. Reason being, the 2.0l cams you have to rotate the intake cam 180 degrees from the stock intake cam. That way the machine holes between the number one and number 2 cylinders were pointing up. (The dowel pins for the cam gears would be 180 out from each other). However, one would also think that the car would not fire up, if not take for ever to fire and back fire out the intake.
What is your engine vacuum at idle? You may just have such a radical cam that is fucking with the PCM due to low engine vacuum. Or your out a tooth, but you said it has been verified multiple times over. Do you have the cam specs? Some rough idle will be normal with bigger cams. It will lope because duration is higher and so is lift. So overlap comes into play, especially on N/A cams where overlap is desirable.
You could also be experiencing Valve float with the big cams. Are you running any upgraded springs and retainers? Valve float usually occurs at high rpm because the coils bind with high lift cams(on the stock springs). It will cause the engine to misfire like MAD and sound like a machine gun because the valves don't fully seat. If your not running upgraded springs then i would start there with the springs.
Have you gone through the preliminaries and checked the basics? AKA vacuum leak, bad wires, bad plugs, sticking injectors?
My final question is what else have you done to the car when installing the cams?
Sorry for the long post just trying to paint the picture in my head and asking questions is the only way I'm going to know without looking at the car.
Last edited by SkullingAxe; 06-08-2008 at 12:12 AM.