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which MAS to buy??

This is a discussion on which MAS to buy?? within the External Engine forums, part of the LSx Technical Help Section category; Does anyone have an opinion on which MAS is better between the SLP and Granatelli?...

  1. #1
    lee novikoff
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    which MAS to buy??

    Does anyone have an opinion on which MAS is better between the SLP and Granatelli?

  2. #2
    Member '99 SLP#24's Avatar
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    1999 Camaro SS #24
    98 Corvette-99 Camaro SS

    I've had a Granatelli on my car for the past year and was very pleased with however I have taken it off and will be selling it since I'm doing some work this winter and will be changing a lot of stuff around. If you're interested hit me up!
    -Will



    '99 Camaro SS SLP#24 -- Not as Slow and Still As Pretty

  3. #3
    member since may 2000 nhraformula's Avatar
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    black
    2000 nhra edition formula

    get neither. the stocker flows well over 400 rwhp.
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  4. #4
    lee novikoff
    Guest
    >>get neither. the stocker flows well over 400 rwhp<<

    I am running 469rwhp right now. From what I can tell I am being limited by the throttle body, exhaust and MAS. I ran a vacuum test under full throttle after the throttle body and it read 4". That tells me my intake (from air cleaner to the blower housing) is not flowing well enough since it should read zero.

    I just bought a Nick Williams 90mm mass air and ported the blower housing to match.

    My boost runs 6 at the bottom of the pull and 10 at the top. That indicates my exhaust is restricting me (its only 2 1/4 duals right now).

    I am hoping to end up around 525 to 550rwhp once its all opened-up. I did not think the stock MAS can handle that much.

  5. #5
    2 is better than 1!!! noblesramair's Avatar
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    sunset orange
    2002 pontiac trans am WS6

    ive been told the stock flows plenty aswell unless your sporting lots of horsepower. Although before i knew that i bought the SLP, i couldnt see spending 400+ on a MAS when you could get one for 150! I havent had any problems with it. I suppose when i get up into the higher hp range ill be ready though.

  6. #6
    Story of My Life!! BIG D's SS's Avatar
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    Black, Blue
    07 TBSS, 07 GSXR1000

    Don't waste your money. GMMG uses the stock ones on cars up to 600 rwhp.

  7. #7
    Member Granatelli's Avatar
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    Yellow
    2015 Z06 Coming, 2014 Z51

    same story different post. The meter helps make power. If a stock meter is currently installed on your 550hp car. take is off and install a Granatelli or SLP and you WILL pick up more power. That fact that the stock meter moves enough air to support 400, 500 whatever you guys say does not prevent to Granatelli and SLP meter from making even more.

    When I owed Paxton we made 650hp with the stock meter. SO WHAT If we had the GMS meter back then we could have (may have) made 680
    Last edited by Granatelli; 03-09-2006 at 06:02 PM.

  8. #8
    Impounded MikeSomething's Avatar
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    Pewter Metallic
    '00 Z/28

    I picked up a used Gran. MAF on this forum and I'm very pleased. I see a difference in the higher RPMs and don't have a crap load of MODS yet...

  9. #9
    Snake Eater
    Guest
    what if my car is 430-440ish hp n/a, but along with that i'm spraying 150. will the stock maf still be okay to use?

  10. #10
    Member Granatelli's Avatar
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    2015 Z06 Coming, 2014 Z51

    Quote Originally Posted by Snake Eater
    what if my car is 430-440ish hp n/a, but along with that i'm spraying 150. will the stock maf still be okay to use?
    The stock MAF is alwasy OK to use but you will make more power with our meter. We even offer a meter specifically for your car 350112-NOS

  11. #11
    No 55mph 1QuikWS6's Avatar
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    Black
    2000 WS6 Trans Am

    Don't have any experience with the Granatelli (but they make good products) - I have the SLP 85mm MAF with the numbers in my sig below. New engine combo will put me close to the 500rwhp mark N/A and I will be keeping the SLP MAF.

    -Jay-
    2000 Phoenix WS6 Trans Am
    Pride of Western PA Car Shows

    426RWHP/418RWTQ N/A (Mustang Dyno MD-1750)
    584RWHP/510RWTQ Massaged by TNT (Mustang Dyno MD-1750)

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