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MAF ends

This is a discussion on MAF ends within the External Engine forums, part of the LSx Technical Help Section category; So I've been doing my homework on MAF's. Aparently, the SLP and Granatelli MAF is so much $ its not ...

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    Member myk02k's Avatar
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    MAF ends

    So I've been doing my homework on MAF's. Aparently, the SLP and Granatelli MAF is so much $ its not worth the amount of HP per dollar. But what about MAF ends? I'd assume this is much much better than buying a whole new MAF. Additionally, I've been told that high performance MAF's also trick your computer to believe it's not getting as much air as it actually is. Wouldn't that be the exact same as tuning your car to running slightly rich???

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    member since may 2000 nhraformula's Avatar
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    leave the ends be. aftermarket anything maf will cause you a headache.
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    a few bolt ons, 379 rwhp
    11.96 @113.25

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    Senior Member mrr23's Avatar
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    i have no 'headaches' with the VHP MAF ends i have on the wife's car. runs, drives, and tuned around it just fine. with the ported MAF ends, the PCM doesn't meter all of the incoming air. this will lean the mixture out somewhat. here's a dyno from the wife's car this is with stock tuning as well. yes, it gained 2 peak hp. but, after peak is where it started gaining. gained 8 rwhp after peak.


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    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by mrr23
    i have no 'headaches' with the VHP MAF ends i have on the wife's car. runs, drives, and tuned around it just fine. with the ported MAF ends, the PCM doesn't meter all of the incoming air. this will lean the mixture out somewhat. here's a dyno from the wife's car this is with stock tuning as well. yes, it gained 2 peak hp. but, after peak is where it started gaining. gained 8 rwhp after peak.

    Click for full size
    most people dont have the maf or ends tuned and thats where the headaches are.

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    Senior Member mrr23's Avatar
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    the only time i tuned the car was after i out heads in her car. drove around for well over 6 months on stock tune with the MAF ends. some MAF set ups are hit or miss.

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    Member myk02k's Avatar
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    It's always the tune...which is more money than the parts sometimes.

    I found a cheap fix for lean-running cars, put the MAF on backwards. That way, it reads unscreened and after it gets screened, it will run rich.

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