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Rundown on Tuning

Old 08-04-08, 09:56 PM
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Rundown on Tuning

I know this is a lot to ask and I've searched through for almost 2 months scavenging whatever I could.
I want to know the basics of tuning (on an N/A for now).
I just want to know if I should advance or retard my CAS and by how much.
What kind of AFR's should I be aiming for on low and hi throttle when secondaries hit... 13's?
After tuning should I put back the stock sensor to retain closed loop or plug the hole?
Just the essentials and tips please...

Sorry for being a noob and thanks to anyone willing to help
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Old 08-07-08, 02:13 PM
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I'm working on a mildly modded n/a myself and have coem to these conclusions:
-don't mess with factory CAS setting - leaning the safc will advance the timing a bit anyway
-lo throttle seems to be 30% and under, according to the factory ECU. 30% and under, the car runs closed loop aiming for 14.7:1 afr ratio. Hi throttle afr's for n/a is something I need to find out too... It sounds like a fair number of folks either a) put it on a dyno (best way) or b) slowly lean it out till the engine starts to complain. best o luck!
-I suggest let the ecu still talk to the stock o2 sensor so it can find stoich under low load.
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