106 octane

Discussion in 'Race 400/430/455' started by Buickboy-430, Feb 14, 2007.

  1. Buickboy-430

    Buickboy-430 69 430 - 84 chevy pickup

    lpg/propane has to be a very good fuel for these early high compression BBB's... whats your take on this fuel?

    it's cheaper than premium gas.

    :)
     
  2. alec296

    alec296 i need another buick

    E85 is 100 octane and is cheaper then regualr gas too
    i see the turbo guys use propane as a booster like nitrous
     
  3. tlivingd

    tlivingd BIG BLOCK, THE ANTI PRIUS

    105 octane :Smarty: :) though it takes 30% more fuel to have the same kick :Dou:
     
  4. Buickboy-430

    Buickboy-430 69 430 - 84 chevy pickup

    ok... so that's why 10.5 - 1 compression is good, takes up the slack?

    http://www.alternatefuelsracing.com/

    :Comp:
     
    Last edited: Feb 15, 2007
  5. GRIMM

    GRIMM Well-Known Member

    yes, for the same amount it produces 30% less usable power
     
  6. David G

    David G de-modded....

    We had a 68 GS400 back in the early 70's, that my brother set up to run on either gas, or propane, with a nice conversion kit. Mounted the propane tank in the trunk. Advantages were price, and it burns much cleaner than gasoline, resulting in a cleaner engine. Disadvantage was reduced MPG, but at the time was more than offset by cheap propane prices. He mounted switches under the dash to run on either gasoline, or liq or vapor propane. In real cold winter temps, gasoline started best, and if you were running on the liquid propane valve, needed to switch to vapor or to gasoline for a few minutes before shutdown, or the liq propane could freeze up in the lines. I'm talking REAL cold winter temps. We drove it year-round back then.
     
  7. Buickboy-430

    Buickboy-430 69 430 - 84 chevy pickup

    duel fuel is not the best, it means your set up is bias for on fuel or the other. as for cold winter starts i can get my impco straight propane setup to fire up at -20c no problems i have a primer on the vaporizer. i have found fuel lines generally only freeze when you run your propane tank to empty.

    not only is propane cheaper than gas its easier on your engine, very little carbon build up.

    high compression and propane are a great combo.

    each to there own tho...

    http://franzh.home.texas.net/lpinfo/index.htm

    :)
     
    Last edited: Feb 16, 2007

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