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How much psi on stock ls1?

This is a discussion on How much psi on stock ls1? within the Forced Induction forums, part of the LSx Technical Help Section category; Originally Posted by FasstChevys Thanks for stepping in - you were much more tactful than I would've been. Listen to ...

  1. #21
    ;) Packy's Avatar
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    Black/Screaming Yellow
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    Quote Originally Posted by FasstChevys View Post


    Thanks for stepping in - you were much more tactful than I would've been.
    Listen to what he says because that is the same advice i took from somone after I built my motor because of the ragged edge tuning I had from MTI. It has lasted since 2003! It is nothing more than an LS1 with forged pistons/rods and a small cam. I beat the piss out of now and have had only trusted tuners work with it.

  2. #22
    215 heads,ms4cam,102 fast 2000ls1tranz's Avatar
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    White
    2000 trans am

    i would say anything over 10psi is pushing ur limit

  3. #23
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    red
    2002

    oh yeah its turbo time have you looked in to buying bigger flexfuel injectors i have heard you can use them does anyone know what the deal is with this?

  4. #24
    Junior Member Thevirus13's Avatar
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    1995 chevy truck

    Cool drive shafts

    After I put the ls1 in my truck I broke 6 drive shaft and busted 3 gas tanks. One on a dyno the frist time I realy drove the truck. One at the track. Spun the slicks in the water box pulled out to warm them up and broke a drive shaft didn't even get 2 make a run. 3 just playing doing burn outs and one doing 130 passing some cars thet one was hairy it bounced my truck off the ground and busted both my gas tank with 53 bucks worth of 93 octaine in it. And my transmission 4l60e drive shaft broke the yoke off flush with back of the trans.
    It took me while a tunning program but I found out why the people that programed my computer set my rev limiter at 5200 rpm motor was just coming into its power and was shutting it down. Sucks that it took me so long to find that out but you live and learn.
    Ls1 powered 95 silverado
    Hooker headers 3" duels dynomax mufflers
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  5. #25
    Moderator 35th-ANV-SS's Avatar
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    CF DS and drive-shaft safety loops for the win.

  6. #26
    Junior Member Thevirus13's Avatar
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    black
    1995 chevy truck

    Cool had a loop

    Have a loop they always came out in 2 or 3 pieces 2 were alum and and 4 were steel. I had one built steel that would handle 1200 hp same one that phyco nhra drag car uses same people built myne as did his.

  7. #27
    Senior Member bluehawk2000's Avatar
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    2000 trans am

    Quote Originally Posted by FasstChevys View Post


    Thanks for stepping in - you were much more tactful than I would've been.
    Yes he is very knoledgeable he is one person you really want to get to know cause he know his stuff, he is one of those people you want to be around when it comes to this stuff. But yea I have seen many of people run 8# consistantly with a good tune and they was perfectly fine. I seen a guy here run 8# and he ended up throwing some slicks on it just to break something on purpose and made multiple passes before he snapped his drive shaft and broke the rear!!!

  8. #28
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    pewter
    2002 ws6 trans am

    I did fine with 8lbs, then like everybody else I got greedy. I went to 11 lbs and blew a headgasket. Thats just my experience.

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