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Is this going to be a problem?

This is a discussion on Is this going to be a problem? within the Computer & Tuning forums, part of the LSx Technical Help Section category; I just ordered a Power Programmer from Hypertech for my 2001 Camaro SS with Lid, Smooth Bellows, SLP MAF, and ...

  1. #1
    Junior Member JesusDrivesAnSS's Avatar
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    Smile Is this going to be a problem?

    I just ordered a Power Programmer from Hypertech for my 2001 Camaro SS with Lid, Smooth Bellows, SLP MAF, and SLP ported throttle body, and a Borla Catback. I then read on their website that the tunes are intended for stock, or near stock cars.
    Specifically it even mentioned the MAF as being considered not near stock.

    Is this going to cause a problem with the programmer; should I put the stock MAF sensor back in?

  2. #2
    Blown, Stroked, & Sprayed

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    I really see no reason to change your MAF. That will cause more headaches.

    And most here won't push the HPP3. The tuning doesn't really help. If you have an Auto, it may be worth it.
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    Junior Member JesusDrivesAnSS's Avatar
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    I do have the A4, am looking forward to playing with that. Are you suggesting I not use Hypertechs Tuning? The aftermarket MAF is already installed...leave it on or switch back to stock?

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    Blown, Stroked, & Sprayed

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    Most go lean and detonate when using the HPP tuning.

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    Member tici's Avatar
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    Quote Originally Posted by Ed Blown Vert
    Most go lean and detonate when using the HPP tuning.
    ...at 4800 rpm they have a commanded AFR of 13.55

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    Token V6 Guy
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    Quote Originally Posted by tici
    ...at 4800 rpm they have a commanded AFR of 13.55
    yeah but I believe they leave COT active which means it might be commanding in the 12's still. I mean i've seen pro tuners not even touch the pe or cot tables on cam only cars & just use the maf to adjust for fueling so you might thinkn your going to 11.5:1 a/f or what have you but might actually be right on. All depends on how the tuner handles things.

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    Member tici's Avatar
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    1998 M6 vert TA

    OK what Hypercrap does is increase the whole MAF table by 10%, leave COT active and set an AFR of 1.0853 at torque peak (4800 rpm).

    With the new MAF table (I assume) they want negative LTFT's so that they will stay at 0 during PE.
    With 10% more fuel the commended AFR becomes 1.1938 which means an AFR of 12.3
    Once COT kicks nobody really knows what the AFR is...

    Now: knowing how each engine is different, how can they figure out an universal tune?

    On top of that they copy the high octane timing values in the low octane table.
    Is that really smart?
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