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Help with 85mm MAF and turbo.

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Old Jul 16, 2005 | 01:00 PM
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Default Help with 85mm MAF and turbo.

I can't get my 85mm MAF to read correctly. The otput jumps all over the place under boost, and it falls off at high RPM, causing the engine to go lean.

With the stock MAF The curve was glass smooth. Straighting out the pre-maf hoses helped some, but its still falling off at high RPM.


Any of you LS1 guys having this trouble? What can I do about it?
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Old Jul 16, 2005 | 05:05 PM
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think you answered your question, switch it back to the stock maf. what kind of power does that 6 make?
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Old Jul 16, 2005 | 05:42 PM
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I would also suggest to run the stock MAF.

We've made 850rwhp blowing through a stock screened MAF. (and picked up no power when switching to speed density and removing the MAF)
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Old Jul 16, 2005 | 08:22 PM
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At 17psi the stock maf maxes at 3800rpm. The maf is mounted in the TB, with the screen, I bored it out way too far to put it back to stock.

As far as power. never dynoed or raced, but theres enough to walk a high 12sec A4 camaro on the street at 10psi.
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