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fast lsx92mm intake

This is a discussion on fast lsx92mm intake within the External Engine forums, part of the LSx Technical Help Section category; What kind of power out of a stock ls1 with a full exhaust could I see if I had one ...

  1. #1
    Senior Member bluehawk2000's Avatar
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    midnight blue
    2000 trans am

    fast lsx92mm intake

    What kind of power out of a stock ls1 with a full exhaust could I see if I had one of these bolted on with a 92mm tb. Is their any downs to this, I will plan on doing a head and cam swap probably in the process but wanna know what kind of power to expect out of this, and is a bigger maf a must or would the stocker still work? Thanks

  2. #2
    Senior Member Z28boy2000's Avatar
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    2000 Camaro B4C

    if your gunna be cam'ing your car it is going to want to breathe, the most air in and the most air out as quick as possible. I saw 21rwhp with my 92/92 set up (with torquer 2 cam)....the shop where i had my car dyno'd said on a stock LS expect around 11 hp. I did notice the difference when i drove it after the intake swap. As for the MAF about 97% of people will tell you the stocker is always fine, but i just happened to pick up a Granitelli one for $50 when i bought my car so i cant really tell yea where to go with that. But the stocker will be fine for the intake
    2000 B4C Special Service Package Z28 - Kooks 1&7/8 Stepped 2'' - TSP Torquer V.2 - FAST 92/92 - BDR 4000 Conveter - Xtreme Trans Stage II - Full UMI Suspension - Pacesetter LT's - Comp Drag Shocks - Magnaflow - Cutout - ZO6 MAF - FTP LID - Street Tuned -

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    Senior Member tatertot91's Avatar
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    Sunset Orange Metalic
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    IMO, an ls6 intake or maybe a fast 90 would be plenty for a stock ls1

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    Veteran Hi-Po's Avatar
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    Quote Originally Posted by tatertot91 View Post
    IMO, an ls6 intake or maybe a fast 90 would be plenty for a stock ls1
    A FAST 92 and FAST 90 are identical with the exception of a 2mm wider mouth opening. It was more of a marketing scheme when they came out with the 92mm IMO.

    OP, if you have the extra cash, go for the FAST. If you are patient, look for a used 90 or 92 and save some coin.
    370 CI - Twin 6766 Turbo - Jakes stage 5 4L80E - MWC 9" - Holley Dominator

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  5. #5
    Senior Member tatertot91's Avatar
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    Sunset Orange Metalic
    2001 Camaro SS

    Quote Originally Posted by Hi-Po View Post
    A FAST 92 and FAST 90 are identical with the exception of a 2mm wider mouth opening. It was more of a marketing scheme when they came out with the 92mm IMO.

    OP, if you have the extra cash, go for the FAST. If you are patient, look for a used 90 or 92 and save some coin.
    Guess i need to learn my shit about fast intakes a little more

  6. #6
    Senior Member Z28boy2000's Avatar
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    2000 Camaro B4C

    yeah i grabbed my FAST for 800ish and that was the whole 92/92 setup

  7. #7
    Senior Member bluehawk2000's Avatar
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    midnight blue
    2000 trans am

    oh ok I appreciate the advice, and if the only difference between the 92 and 90 is the opening in the mouth I will just stick with a 90 then. And it wont be stock cause I will be buying a set of heads and cam for it and having it installed at the same time I mean why not already in their working on that part anyway miswell do the rest. Glad I asked the question about the lsx92 never would have known the only difference is the opening of the mouth thats kinda cheap if you ask me.

  8. #8
    The FAST 90mm hasn't been made for a long time. The FAST 92 also comes with stainless hardware and molded in inserts for the throttle body screws. Unless you get a really good deal on a 90, there is no reason not to go with the 92.

  9. #9
    Senior Member tatertot91's Avatar
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    Sunset Orange Metalic
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    Just picked up a fast 90 for $300
    Has a hairline crack underneath but its easily fixable

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