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How much hp & tq gain?

This is a discussion on How much hp & tq gain? within the External Engine forums, part of the LSx Technical Help Section category; I have a 2000 TA M6 mostly stock with just exaust and CAI. My next mods include long tube headers ...

  1. #1
    Member WS6ICK2K's Avatar
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    Metallic Blue
    2000 Trans Am WS6

    How much hp & tq gain?

    I have a 2000 TA M6 mostly stock with just exaust and CAI. My next mods include long tube headers (proally coated pacesetters) with ORY and also a tune. I was wondering what I can expect from those mods? I know it depends on tune but a general idea would be great.

    Thanks,

    Ryan

  2. #2
    M6 King Hot Black Trans-Am's Avatar
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    09 EclipseGT 75 Chevy 4x4
    2001 Trans-Am 13 F-XT

    I'd say about 5

  3. #3
    Member WS6ICK2K's Avatar
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    Metallic Blue
    2000 Trans Am WS6

    5 HP form LTs ORY and a tune? Are you serious. I hope you read the thread and thought I was talking about cold air and exhaust.
    Last edited by WS6ICK2K; 04-02-2008 at 05:05 PM.

  4. #4
    Pathelogical Liar BlackLT1Z28's Avatar
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    I've read many guys report a TUNED gain of ~25+ rwhp.

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    Senior Member 00z28bubba's Avatar
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    white
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    my car is similar only mod difference is bellows, lid, maf but i have full exhaust from lt headers all the way back and from the dyno tune i gained 23hp and 35tq
    2000 white z28, t-tops, free mods, intake, full exhaust, dyno tune, repro c5 z06 wheels, and some elbow grease here and there.

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    Member TACE02's Avatar
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    ASC #753
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    I would say, prolly a few more than 00z28bubba. being a M6 and all. And I would imagine since you got CAI then you have lid and bellows. And stick with the stock maf ;-).

  7. #7
    ls1ftw tigersport14's Avatar
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    Quote Originally Posted by Hot Black Trans-Am View Post
    I'd say about 5
    i think he was kidding... lol

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    Senior Member Bottesini's Avatar
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    Blue
    2002 Z28 Camaro M6

    Here is mine with a lid, full exhaust (sorry not the best pic).


  9. #9
    Senior Member splitfinger09's Avatar
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    Bright Rally Red
    2000 Camaro SS #5075 M6

    ^^^^^^so what does that say?

  10. #10
    Senior Member Bottesini's Avatar
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    Quote Originally Posted by splitfinger09 View Post
    ^^^^^^so what does that say?

    Sorry forgot how bad this pic was. After tune 357 RWHP and 366 RWTQ.
    Before tune hell I can not even tell right now, but it was about a 21 RWHP gain.

  11. #11
    M6 King Hot Black Trans-Am's Avatar
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    Quote Originally Posted by tigersport14 View Post
    i think he was kidding... lol
    haha... I was. I vote about 25ish.

  12. #12
    Member jujofields's Avatar
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    Pewter Metallic
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    I'd say you can expect to get about 20-25hp...

  13. #13
    TunedbyFrost.com Tuner Frost's Avatar
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    Quote Originally Posted by 00z28bubba View Post
    my car is similar only mod difference is bellows, lid, maf but i have full exhaust from lt headers all the way back and from the dyno tune i gained 23hp and 35tq
    you gained so much from tuning because that MAF you added ruined your previous calibration. All that you didn't really "get", most of it you "got back".

    For boltons cars total HP always depends on how strong it was before the mods. There are more "factory freaks" that dyno high in 02 than seemingly any other year. Boltons tuning (with stock MAF) usually gains 10-18rwhp on average. If you have an aftermarket MAF all bets are off the table until a baseline is seen or the AFR at WOT is known.

    Those MAFs should all come with a notice that they require tuning to work properly, but then no one would buy them, which is probably how it should be.

  14. #14
    Member WS6ICK2K's Avatar
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    Quote Originally Posted by Hot Black Trans-Am View Post
    haha... I was. I vote about 25ish.
    I'm glad you were that was depressing.

  15. #15
    Member WS6ICK2K's Avatar
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    Metallic Blue
    2000 Trans Am WS6

    I've got one more ? for you guys. It seems almost all of you run LTs with an ORY, I know you can tune out the code it will through and pass OBDII, but how do you guys get it inspected. I thought inspection stations always looked under your car.

  16. #16
    Member BlackSS1's Avatar
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    In NC they do look for Cats. I recommend a catted Y to pass inspection unless you have a 'friend' that does inspections.

  17. #17
    Just me Y2KPewterSS's Avatar
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    Member TACE02's Avatar
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    ASC #753
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    Inspectors look under your car??? Wow, that would suck.

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    Whats a inspector? LOL

  20. #20
    The Demon Demon_Z28's Avatar
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    Bright Rally Red
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    My A4 has a lid and custom ram air, smooth bellows K&N filter and stock MAF, runs strong, I am going to put a 3inch cat back with a flowmaster muffler, how much do you think it will gain, my guess is 5 hp. I would eventually swap it out with a better muffler though.

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