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Thread: 09 Sierra

  1. #1
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,106

    09 Sierra

    Shanes Sierra 09
    Last year the truck came in with much needed parts.
    Has a DIY turbo kit w 76magnum. Stock 5.3 heads; Hmm
    Got it going decent and made almost 640hp to the wheel.
    Drivability sucked due to instant spool up and power being over by 4000rpms and slowing down around 100mph

    Fast forward.
    We replaced the small turbo with a BW80mm. 90lb inj. Meth.
    Stock ls3 heads.
    Made a tad under 840hp on the same psi, 14psi

    That's all the stock pump could handle with the meth supplementing.
    Customer coming back for round two.
    Entire new fuel system.

    Btw this is on 93oct. No race fuel.
    More fuel and boost
    Should hit 1000hp.
    Last edited by farmtruc; 05-31-2015 at 11:21 AM.

  2. #2
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,106
    Dyno
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  3. #3
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,106
    Turbo comparison
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  4. #4
    Join Date
    Jun 2004
    Location
    george west texas
    Posts
    3,718
    daum !!!!!
    '13 silverado LT...stock

    '11 lt 4x4 z71..tvs1900

    '01 gmc twins 6.0 jakes 400 ladder bars w/ coilovers tuned by nelson performance

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