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all done(full rebuild)uhh ohhh

This is a discussion on all done(full rebuild)uhh ohhh within the Internal Engine forums, part of the LSx Technical Help Section category; Alright I think I already know the answer but I'm gunna ask anyway just to see what you all think.Ok ...

  1. #1
    Member RedHot99T/A's Avatar
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    Red
    1999 Trans Am ws.6

    all done(full rebuild)uhh ohhh

    Alright I think I already know the answer but I'm gunna ask anyway just to see what you all think.Ok so I've been rebuilding my motor all winter,did new piston rings,honed the engine a littlebit and did new(241) heads(ported/polished/3angle valve job also,and milled)also did a ms4 cam with ported ls6intake/tb...deleted the egr also..did the first start up today and typical surge and hard to find idle...but after a few more starts the car almost stalls out but never has yet,and I give it a lil gas and the idle jumps to 2000rpms and stays there...is this a tuning issue or do I have another problem?and it seems to lock me out of reverse also but it possibly could have been me nervous about the car(lol)...let me know what you think...thanks in advance!

  2. #2
    Junior Member incbed's Avatar
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    Black
    2000 Z28 M6 Y3F

    it just needs to be tuned,,I suggest just taking the computer to your tuner to get a flash tune so that you can run the engine long enough to make sure you don't have any leaks or any other problems before you take the car to get fully tuned.

  3. #3
    Member RedHot99T/A's Avatar
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    Red
    1999 Trans Am ws.6

    ok,yea thats what i was thinking to do....just wanted to see what others thought...well g2 wait a week for im to get back home...gunna be a long week

  4. #4
    cutting and welding mark21742's Avatar
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    hugger orange
    2004

    Yup with big of a cam your actually getting way too Mich fuel at and around idle, and then mid to upper rpms you be running lean, so is get it tuned asap

  5. #5
    Member RedHot99T/A's Avatar
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    Red
    1999 Trans Am ws.6

    I did all new rings and bearings,would I have to wait to get it dyno tuned I sure as hell don't wanna risk spinning a bearing...

  6. #6
    cutting and welding mark21742's Avatar
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    hugger orange
    2004

    Frost is pretty quick with hid mail-order tunes. If I didn't have a tuning program that's the way I'd go

  7. #7
    cutting and welding mark21742's Avatar
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    hugger orange
    2004

    mmight want to check your injectors duty cycle up in the higher rpms... you might need to get a larger set

  8. #8
    Member RedHot99T/A's Avatar
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    Red
    1999 Trans Am ws.6

    Ok ill look into it thanks

  9. #9
    Member RedHot99T/A's Avatar
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    Red
    1999 Trans Am ws.6

    Injectors are from an 01 ls1...should be good,my tuner said ther were...

  10. #10
    cutting and welding mark21742's Avatar
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    hugger orange
    2004

    Ok of you swayed out the 26lbs injectors for the 29.8s you need to get ot tuned asap because you can wash the cylinders

  11. #11
    Member RedHot99T/A's Avatar
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    Red
    1999 Trans Am ws.6

    Wash the cylinders?

  12. #12
    cutting and welding mark21742's Avatar
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    hugger orange
    2004

    Quote Originally Posted by RedHot99T/A View Post
    Wash the cylinders?
    Put too much fuel the the cylinder and it can puddle and run past the rings

  13. #13
    Member RedHot99T/A's Avatar
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    Red
    1999 Trans Am ws.6

    Damn it that's all I would need....just redid all of that

  14. #14
    cutting and welding mark21742's Avatar
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    hugger orange
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    Might not be a problem with yours since you just went a hair bigger. You can see this happen pretty quick of you just up to a lot bigger injector likely a 42 lb from stock, or lol like on my case where went from stock up to 60lbers

  15. #15
    Member RedHot99T/A's Avatar
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    Red
    1999 Trans Am ws.6

    Ohh wow...yea I could see that happening then...that wouldn't be fun at all...but its weird it went from ok at the very first start and then after that idles mad high....hmm ill see what the tune does hopfully that's it

  16. #16
    Junior Member smg267's Avatar
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    Artic White
    2001 Z-28

    check for vacume leaks if it is idling high.

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