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Thread: The Vanilla Gorilla! LQ4, xt80, 97' RCSB Chevy on Propane!

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  1. #1
    Join Date
    Feb 2012
    Posts
    8
    Got it on the dyno tonight, learned acouple things, 1st, propane is awesome! Perfect air/fuel and I havent touched anything yet.2nd no matter how good a b&m converter is, it's still junk. Made 2 pulls first pull 533whp, 15lbs 14* timing, second pull 541whp same 15lbs and 12* total timing. On a dyno dynamics dyno (loaded). It blows through the converter hard, I'm sure there is power to be had with a better converter (My next purchase) 15lbs is as low as it goes so I need to change the spring. I want to setup a IAT sensor so that we can try some different timing and see where the iats are at when I get a better converter.



    Video! http://youtu.be/Q0HZJK-LIjc

  2. #2
    Join Date
    Mar 2007
    Posts
    1,705
    Nice you have it running.

    Since it is like the "nitrous" supply how you will handle a half tank and cold day?

    Will afr lean out? U have a fail safe?

    I had a lpg tank 255 pounds and I know first hand that rhe last 20 or so pounds made the engine lean. So I switched to gas automatically. Without boost. Now boosting it lean will worry me on lpg without a safety "something there.

  3. #3
    Join Date
    Jul 2005
    Posts
    27
    Is this a gas propane setup, or liquid propane injection?

    peace
    Hog
    97 GMC 2wd RCSB 5.7, s10 2700 footstall, Hooker 24621hkr LT's , 2.5" cats dual 4"pipes exit B4 pass. side tire, custom driveshaft 3.42 G80 FIPK MAF descreen GM/Mercruiser Marine intake manifold 29lb LS2(EV6) injectors Ed Wright PCM(best mod), LT4 KM 14.8@94mph 2.007 4000lbs 122mph

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