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Tuning & Engine Management EPROMS, ECU, MAF, knock, EGT, wideband, datalogging, fuel trims, etc. Read this Forum's Strict Guidelines.

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Old 11-25-2002, 06:52 PM   #1 (permalink)
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Car: 1989 DodgeColt AWD 2.0
From: Perris, California
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Reputation: miragetbo1997cc is an unknown
Wideband O2 #'s

What it the best #.I had my car Dyno tuned and the car produced 290 hp and 282 lbs.TQ @15 lbs.with the A/F set at 11.5 steady after 5.5rpm.But thats on pump gas and the car was knocking 43 The question is,is that where it should be or should it be richer than that?
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Old 11-26-2002, 06:15 PM   #2 (permalink)
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I think it should be richer but I'm not sure.
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Old 11-26-2002, 07:18 PM   #3 (permalink)
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Car: 1989 DodgeColt AWD 2.0
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Im guessin it should be richer too.Just wonderin.
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Old 11-26-2002, 10:00 PM   #4 (permalink)
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I am still waiting on my WB, so I cannot offer personal experience. My buddy has his WB in his FD and logs with his PowerFC. He also owns a DSM. He tells me that people rushed out to get WB's to find all this new power. Basically, to run leaner induces knock and pulls timing. Unless you are running a standalone and can control knock/spark advance, you usually have to tune to for knock on pump gas. Try to lean it out to the "correct" number and it knocks.

If it wasn't for the knock, that 11.5:1 is a good number. I might tend more towards 11.0:1 at WOT, but as long as EGT's are good, I would stick with it. But, you are knocking and getting timing pulled. Unless something else is up with your motor, richen it up and try again.


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1990 Talon
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Old 11-26-2002, 11:24 PM   #5 (permalink)
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Car: 1989 DodgeColt AWD 2.0
From: Perris, California
Region: SoCal
Registered: Oct 2002
Posts: 109
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Reputation: miragetbo1997cc is an unknown
What I really need is a second car so I can fill her up w/100 octane and then tune it.I had half take of 91 then added 2.5 gals. os c12 and the knock went away
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