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Thread: race gas to use for 15.1 compression bbc drag racing?

  1. #1
    Junior Member APPRENTICE
    Join Date
    Feb 2005

    race gas to use for 15.1 compression bbc drag racing?

    HI, I need some help ! I'm building a new short block and have it set up for 15.1 compression static. but need to know what octane fuel to use? I can lower the comp to 14.1 with a thicker gasket if need be. I run alumn. heads and a cam with 110 lobe sep. i heard that make a diff. on crankin comp. shoul go 7200 rpm through the lights. I would also like to use nos some times. 175hp-250hp shot. Thanks for your help!

  2. #2
    Junior Member SHOW GUEST
    Join Date
    Apr 2003
    VP C-16 if you spray C-14 if you do not

  3. #3
    Senior Member RACING JUNKIE
    Join Date
    May 2003
    Coldwater, MI
    I've used 110 on 14:5 for a few years with no issues, switched to 112 and gained nothing at all.
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines

  4. #4
    I got done dynoing my new motor that made little over 1000hp and that is a 15to1 motor. I used the sonoco HCR PLUS which is 114 RM/2.
    522ci 1110HP 1803* Dukes, cast intake,1250 on gas. Heads By CBOGGS

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