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Thread: Most DCR you can run with 91-93
          
   
   

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  1. #1
    tweaked250r is offline CHR Member Visit my Photo Gallery
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    naples
    Car Year, Make, Model: 84 stepper
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    Most DCR you can run with 91-93

     



    I have heard mixed numbers about the highest DCR you can have with no detonation on 91-93 octang. SO, what is the boarder line?? I will have aluminum heads FYI. Thanks,
    when in dout, throttle out

  2. #2
    Matt167's Avatar
    Matt167 is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: '51 Chevy Fleetline and a Ratrod project
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    probably somewhere around 10.0:1 static, I don't know about dynamic.
    You don't know what you've got til it's gone

    Matt's 1951 Chevy Fleetline- Driver

    1967 Ford Falcon- Sold

    1930's styled hand built ratrod project

    1974 Volkswagen Super Beetle Wolfsburg Edition- sold

  3. #3
    1JohnnyO is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 71 Chevelle SS, 67 Camaro
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    8.3, 8.4 is pushing it. Most try to keep it 7.8 or 8.0 just to be safe.
    When your dreams turn to dust, Vacuum!

  4. #4
    rumrumm's Avatar
    rumrumm is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: '32 Ford 3W Coupe, 383 sbc
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    No more than 8.5 with aluminum heads. My DCR is 8.46 on my 383, but that is pushing it. It runs fine on 92 octane.


    Lynn
    '32 3W

    There's no 12 step program for stupid!

    http://photo.net/photos/Lynn%20Johanson

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