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Aftermarket maf sensors

This is a discussion on Aftermarket maf sensors within the External Engine forums, part of the LSx Technical Help Section category; Has anyone intalled a granatelli maf on an ls1? I just can't belive they could add between 10-25 rwhp. Even ...

  1. #1
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    Aftermarket maf sensors

    Has anyone intalled a granatelli maf on an ls1? I just can't belive they could add between 10-25 rwhp. Even if they did they wouldn't be worth $350 but they make them in my town so I could get one for less just wanted to know how they turned out. thanks

  2. #2
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    Do a search for "GMAF" without the quotes, there was a huge thread on this.

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    King 0f n00bz shady milkman's Avatar
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    real simple. dont waste money on mafs untill you start pushing 500+...stock can handle up to 500hp...alot of people run into trouble with aftermarket mafs.
    mods- suncoast creations hood with functional lt1 style airbox, ls6 intake, QTP longtube headers, QTP ORY, UMI SFC, Adj. LCA with relo brackets, UMI adj. panhard bar, Koni SA and strano springs,Torq Thrust M 17s 9.5 and 10.5 with nitto 555Rs, tuned by Frost
    Quote Originally Posted by Modulistic View Post
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    member since may 2000 nhraformula's Avatar
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    save youre money and save yourself a few headaches and leave the stocker alone
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  5. #5
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    i had a Z06 maf calibrated for mine, and picked up a few hp. I have heard bad things about the SLP and Granatelli maf's

  6. #6
    King 0f n00bz shady milkman's Avatar
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    blacker than wesleysnipes
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    Quote Originally Posted by jimmy 2 times View Post
    i had a Z06 maf calibrated for mine, and picked up a few hp. I have heard bad things about the SLP and Granatelli maf's
    lol wow you got ripped..you could p&p the stock and pick just as many...like i was saying the stock can handle 500hp

  7. #7
    Member 98ls1blackbird's Avatar
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    I had a Granatelli MAF on my 94 LT1 Z28, it made my car run so rich it turned the back of the car black. I also had a pcmforless tune and when I talked to them they told me to scrap the aftermarket MAF and put on a stock one. I bought a new GM MAF and the car ran great and picked .2 sec in the process. My experience may not be typical and it was not on an LS1, but it was kind of an expensive lesson learned. Just my .02. Good luck.

  8. #8
    MOTOR CITY MARO' SSTODD's Avatar
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    I have the SLP for my LS1 but I did not ask the question before buying. As you can see from all the responses it is probably not worth it. No huge gains are believable but mine is still on the car and until I get a tune I won't know if the thing is making it rich or lean.

  9. #9
    Pathelogical Liar BlackLT1Z28's Avatar
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    I have a Granatelli MAF on my 94 Z. I don't have any problems with it. But I changed everything at once with my intake. K&N FIPK II, Grantelli MAF, 1LE Elbow, and air foil all at the same time, so I couldn't tell you if it made a difference.

  10. #10
    txcosmos
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    put a ZO6 on my car. Then you can relocate the IAT too...

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    Senior Member INMY01TA's Avatar
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    I had a GMAF on my 01 years ago. It was a pos! Made my car misfire real bad in wet weather.

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    no, not worth the money.

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  13. #13
    Senior Member INMY01TA's Avatar
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    Quote Originally Posted by KageSS View Post
    I have one on mine, and it works like a charm. Go figure.
    Each car is a different animal.

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