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whats the lowest horsepower ever in a ls1 trans am

This is a discussion on whats the lowest horsepower ever in a ls1 trans am within the Dyno Information forums, part of the Racing Forums category; Originally Posted by mrr23 guess you missed this part. i'm not sure what he means by his top end rebuilt. ...

  1. #21
    Senior Member jrc1122's Avatar
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    Quote Originally Posted by mrr23 View Post
    guess you missed this part. i'm not sure what he means by his top end rebuilt.

    oops

    I did.

  2. #22
    Sarge for AAG Emperor hutch1999's Avatar
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    06 HD Softail
    1998 Trans Am m6

    sorry to here about the low numbers

  3. #23
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    navy blue metalic
    1998 trans am conv

    i am looking to put a cam and bring those horsepower numbers up

  4. #24
    Sarge for AAG Emperor hutch1999's Avatar
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    06 HD Softail
    1998 Trans Am m6

    itd suck tho to have a 320rwhp cammed car

  5. #25
    now greybat66
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    navy blue metalic
    1998 trans am conv

    i tunned it now it has 286 horsepower to the wheels

  6. #26
    Sarge for AAG Emperor hutch1999's Avatar
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    Quote Originally Posted by purplebat66 View Post
    i tunned it now it has 286 horsepower to the wheels
    if all you do is a mild cam you will see a small gain from that 286rwhp

  7. #27
    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by purplebat66 View Post
    i am looking to put a cam and bring those horsepower numbers up
    What exactly was done when you had the 'topend' rebuilt??

  8. #28
    now greybat66
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    navy blue metalic
    1998 trans am conv

    they changed the valve springs , pushrods and thats pretty much it.

  9. #29
    now greybat66
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    navy blue metalic
    1998 trans am conv

    I had a broken valve and i had a mechanic change all the valve springs and pushrods.

  10. #30
    now greybat66
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    navy blue metalic
    1998 trans am conv

    before all of this my car actually had around 310 to the wheels it was an animal thats why i decided to have the car tuned , because the car felt very slow.

  11. #31
    Slow'er'Ass Mr. Luos's Avatar
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    Any idea what pushrods they put in?? Valvesprings?
    Does it chatter a lot? The valvesprings that is.

  12. #32
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    Quote Originally Posted by blackbirdbrain89 View Post
    wow i have to say that might just be the lowest hp #'s from a ls1 ever. hell u might have a cloged fule filter or a fule pump going out... cats wont hold u back the type of cats that are one outa cars a knows as honey cones theay are not like that old type from the 80s ours dont clog. how meany mi is one ur car? ur car might be missing a lobe or some thing. i have never herd of a ls1 car losing lobes but u never know its also possable that the push rods may be bent and losing power that way as well
    Thats BS. The cats can in fact clog. My friends 2000 truck had one that was clogged. It was performing so bad going from a stop to 60 took at least 15 seconds, if not more. Oddly enough though, it wasn't throwing a code and we couldn't figure it out. We checked everything, fuel filter, air filter, MAF, even if it had bad gas. Nothing was wrong and I figured if it was a cat it would through a code. Well it didn't. Hell, the mechanic he took it to couldn't figure it out. The ended up charging him $800 to replace the fuel pump when it was acting up before he ever got out the parking lot with it...So it IS possible...

  13. #33
    now greybat66
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    navy blue metalic
    1998 trans am conv

    chromemolly pushrods and comp cam springs

  14. #34
    now greybat66
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    navy blue metalic
    1998 trans am conv

    The car is quiet as can be no drivetrain noise.

  15. #35
    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by purplebat66 View Post
    chromemolly pushrods and comp cam springs
    Do you know the length?

  16. #36
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    navy blue metalic
    1998 trans am conv

    the were factory length , i had a problem at first they were a little to short.

  17. #37
    member since may 2000 nhraformula's Avatar
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    2000 nhra edition formula

    any of you experts ever think that he might of been dynoed on a mustang dyno?
    mustang dynos dyno lower than all other dynos
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  18. #38
    rapter34
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    WOW purple Metallic is a very rare color.

  19. #39
    !!!!!!!!!!!!!!!!!!!!!!!!! ATCharming's Avatar
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    Quote Originally Posted by rapter34 View Post
    WOW purple Metallic is a very rare color.
    hence why he SHOULDNT sell it to get another trans am... those are sooo hard to find, and extremely badass

  20. #40
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    Quote Originally Posted by nhraformula View Post
    any of you experts ever think that he might of been dynoed on a mustang dyno?
    mustang dynos dyno lower than all other dynos
    I doubt thats the case since he said it felt really slow.

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