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Thread: my 1968 c10 with 5.3 an a 91mm turbo

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  1. #1
    another 5.3 for the weekend,but gonna build a 418ci
    my badass 1968 chevy with a 5.3 an a 91mm turbo

  2. #2
    Join Date
    Sep 2011
    Posts
    1,235
    Amazing truck and very impressive but stock 5.3's pushed that hard are ticking time bombs! I hope o2camaross reads this lol lol!
    99 rcsb silverado...... boosted.

  3. #3
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,038
    Quote Originally Posted by rzron30s View Post
    another 5.3 for the weekend,but gonna build a 418ci
    Glad to hear you're going with a forged engine; they stay together and can take a lot more abuse.

  4. #4
    Join Date
    Apr 2005
    Posts
    4,229


    I know that feeling too well! Sucks man, but sounds like you have the right frame of mind. Drop in another, and give it hell.

    S.C.
    Gone, but not forgotten!

  5. #5
    Join Date
    Jan 2008
    Posts
    1,550
    Yea I've been reading it Jansen lol. Ill just push it till it blows but I got a plan that Ill start working on soon

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  6. #6
    Join Date
    Sep 2011
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    Quote Originally Posted by o2camaross View Post
    Yea I've been reading it Jansen lol. Ill just push it till it blows but I got a plan that Ill start working on soon
    Secrets don't make friends !
    99 rcsb silverado...... boosted.

  7. #7
    how fast r u 02camaross?
    my badass 1968 chevy with a 5.3 an a 91mm turbo

  8. #8
    Join Date
    Jan 2008
    Posts
    1,550
    Not as fast as yours lol. It should be mid 10's at 15 psi. I havent been to the track since I put the new turbo on. Old on was 76/64 with 3" dp, now its 80/78 with 4" dp. On 14 psi with the old setup and 28/10/16 hoosiers it went 10.9 @ 125. The new setup breathes a lot better so Im guessing mid 10's at 15psi with my new 29.5/10.5/15 MT's. Ill turn it up from there. But the truck is down for a little bit bc I got hit last Friday so I need to fix it and I plan to do a few little tweaks to help it out

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

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