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Thread: 5.3 s10 dyno pull

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  1. #1

    5.3 s10 dyno pull

    Just got back tonight from Efi Alchemy's new shop in north FL(really nice place). First pull was with one cutout open and the other close with 29* of timing. The other pull was with 28* and both cutouts open. I wanted to see what it would have put down with 29* and both cutouts open but it was getting late into the night.



    Tonights graph:


    This graph is one that i pulled a month or two back at a different shop, but the tunners of the shops say their dynos put out almost the exact same numbers. Seem to have lost some power somewhere?
    1999 rcss/2002 5.3, Ls1 cam, Ls6 intake manifold, Ported TB, NelsonPerformance tune, CAI, MSD 8.5s, Sanderson shorties, Magnaflow X-pipe, Maganflow 2in2out muffler(no cats), FLT lvl4, Yank 3600, B&M tranny cooler, e-fans, 2/3 drop, Truetrac, Trickflow cover, 3.42 gears, Caltracs, A.R. Irocs 18"x8", NS-2s(245/40/18), Nitto 555s(275/45/18) two JL 10s, 2" cowl hood, SS mirrors, SS bumper cover, step shavers, and Alot from Current Performance

  2. #2
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    Quote Originally Posted by lsxs10 View Post
    Just got back tonight from Efi Alchemy's new shop in north FL(really nice place). First pull was with one cutout open and the other close with 29* of timing. The other pull was with 28* and both cutouts open. I wanted to see what it would have put down with 29* and both cutouts open but it was getting late into the night.



    Tonights graph:


    This graph is one that i pulled a month or two back at a different shop, but the tunners of the shops say their dynos put out almost the exact same numbers. Seem to have lost some power somewhere?
    Normally they make less power with the cutout open.

    1969 Chevy RCLB C10 350/TH400 SOLD
    2007 Chevy RCSB 4.8 4x4 LS SOLD
    2008 Chevy RCSB 5.3 4x4 LT SOLD
    2010 Chevy CCSB 6.2 4x4 LT SOLD
    2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
    2013 FORD CCSB F350 6.7 Powerstroke 4x4


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