Seeing negative LTrim numbers at WOT

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Sep 11, 2003 | 12:05 PM

LS1 Power Plant

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Seeing negative LTrim numbers at WOT

I've got my LTrims negative (between -1 and -3) but instead of them locking at 0 @ WOT, they are showing up at -1.3. What gives?

Sep 11, 2003 | 01:22 PM

MyLS1Hauls

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Re: Seeing negative LTrim numbers at WOT

How did you adjust your LTFTs?..by injector scaling or by the MAF? I just worked on tuning a car that was seeing +10-12 on WOT and scaled the injectors down and we now see 0 WOT and slightly negative at cruise.

Sep 11, 2003 | 02:07 PM

LS1 Power Plant

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Re: Seeing negative LTrim numbers at WOT

I did through injector scaling (have a stock MAF). When I had a 85mm MAF I did it through the MAF and had the same problem.

Sep 12, 2003 | 08:32 AM

AzzHauler

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From: Richmond, VA Where fast cars, well......are hard to come by.

Re: Seeing negative LTrim numbers at WOT

I've seen this happen once or twice, not on my car though I don't think. I don't understand it either.

Sep 12, 2003 | 04:32 PM

Bink

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Re: Seeing negative LTrim numbers at WOT

Quote:

I've got my LTrims negative (between -1 and -3) but instead of them locking at 0 @ WOT, they are showing up at -1.3. What gives?

What are your MAP and MAF values as you transition to WOT and what was your last FTC before FTC 22 (or 15)?
joel

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