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Thread: Near stock LQ9 dyno

  1. #41
    ff_jeff Guest
    Quote Originally Posted by ChevyLee View Post
    Guess my 6.0 is just a freak.
    or you have a sleeper cam and headwork

  2. #42
    Join Date
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    Texas
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    Quote Originally Posted by ff_jeff View Post
    or you have a sleeper cam and headwork

  3. #43
    Join Date
    Aug 2008
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    North Texas
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    Denalis don't have LQ9's except for a few 06's. My 03 has an LQ4 and 317's stock.

  4. #44
    Join Date
    Feb 2009
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    Roy, Utah
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    Well supposedly it is an 06 so maybe that's where they screwed up.
    99 Silverado 1500 4X4- 6.0 LQ4, LPP headers

    00 Trans Am- H/C LS6 intake, 100 shot
    11.64@121 w/1.74 60' @4400' elevation

  5. #45
    Join Date
    Jul 2005
    Location
    Azle , Texas
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    702
    Funny you can flash in a LQ9 tune into a LQ4 and do a little tweaking and get performance of a LQ9 , sorry SS guys nothing special .
    The difference is pistons are flat in a LQ9 and the LQ4 slightly recessed .
    Tunes look almost the same except for a few tables .
    My LQ4 would always beat any stock 5.3 on a Dyno by 10 to 20 hp , tuned or not !
    Now what is a tune again?

    Comp Cam 54-412-11 , Int:265, 212, .522 , Exh: 271, 218, .529 , LSA 114 , Longtube , CAI (Vararam) , TransGo HD2 shift kit , tuned by me with EFILive

  6. #46
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    Quote Originally Posted by Chevy366 View Post
    Funny you can flash in a LQ9 tune into a LQ4 and do a little tweaking and get performance of a LQ9 , sorry SS guys nothing special .
    The difference is pistons are flat in a LQ9 and the LQ4 slightly recessed .
    Tunes look almost the same except for a few tables .
    My LQ4 would always beat any stock 5.3 on a Dyno by 10 to 20 hp , tuned or not !
    lq9 has flat top pistons and i believe a ls1 cam.
    http://www.ls1truck.com/forums/chart/charts.htm

  7. #47
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    Yeah but there's hardly a difference between the 9 cam and the 4 cam...they're really close.

  8. #48
    Join Date
    Feb 2009
    Location
    Roy, Utah
    Posts
    80
    Yea but they both suck! Way to mild IMO.
    99 Silverado 1500 4X4- 6.0 LQ4, LPP headers

    00 Trans Am- H/C LS6 intake, 100 shot
    11.64@121 w/1.74 60' @4400' elevation

  9. #49
    My L33 5.3 made 267 HP on a hot August Humid Atlanta day on a DynoJet. See the chart in my sig. It had a Corsa tourning exhaust only.
    therock
    Radix'd 05 L33 5.3 ECSB Z71 @ 387-HP 395-TQ
    Truck Pic, Dyno Info & Mods

  10. #50
    Slimsilverado Guest
    Ricky you have headers, CAI and Allen spent hours doing a live tune on your truck!!!!

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