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Thread: compression ratio

  1. #11
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    You didn't have a big enough stick in it so you cylinder pressure was to high.
    2014 RAM 1500 Express QC 2wd Hemi

    5.7 Stock Block
    1/4 - 12.18 @ 110.15 NA
    1/8 - 7.74 @ 89.06 NA

    426 Stroker
    1/8 - 7.16 @ 95.79 NA

    2000 GMC Sierra 1500 RCSB 2wd - ERL 454 LS2 Dry-Sleeve powered drag truck...

    SOLD - 2007 Dodge Ram 1500 QC 2wd Hemi
    1/4: 12.63 @ 104.92 NA
    1/8: 7.98 @ 84.83 NA

    Quote Originally Posted by DaKing View Post
    "It rubs the oil on its piston.."

  2. #12
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    Quote Originally Posted by jmgak47 View Post
    You didn't have a big enough stick in it so you cylinder pressure was to high.
    That's what she said. I'm not scared to use a decent sized cam, but I don't think I'll want one big enough to bleed off 11.8:1. Hell I was skeptical about going over 12:1 in my car that has more motor and weighs 1500 lbs less

    let me try, im a genius

  3. #13
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    Quote Originally Posted by jmgak47 View Post
    You didn't have a big enough stick in it so you cylinder pressure was to high.
    Yep a big cam for 10 more hp and shit driveability wouldve been wonderful

    Huh hemi expert
    04 Silverado 4x4 & 11 Charger R/T

  4. #14
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    My 11.6 compression on my 420 on 93 Oct and it ran like a champ but did have a big cam. (246/254@117 lsa)
    2005 DAYTONA - 468 Aluminum HEMI, 4l80, FTI converter, 4.56 🌽

  5. #15
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    Quote Originally Posted by dline View Post
    Yep a big cam for 10 more hp and shit driveability wouldve been wonderful

    Huh hemi expert
    I really don't think he was being condescending. Having high compression goes hand in hand with big cams. With the right compression ratio, a big cam will make plenty more power both at peak and under the curve, and can retain relatively decent drivability. And actually, the more compression you have, the more aggressive you need the cam to be to bleed off compression in higher load areas of the power curve.

    let me try, im a genius

  6. #16
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    Maybe not

    But compression didn't scare me I ran 100 sometimes even leaded once in awhile and boy that smelled good
    04 Silverado 4x4 & 11 Charger R/T

  7. #17
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    I was just explaining why you had a issue, wasn't trying to be a dick.
    2014 RAM 1500 Express QC 2wd Hemi

    5.7 Stock Block
    1/4 - 12.18 @ 110.15 NA
    1/8 - 7.74 @ 89.06 NA

    426 Stroker
    1/8 - 7.16 @ 95.79 NA

    2000 GMC Sierra 1500 RCSB 2wd - ERL 454 LS2 Dry-Sleeve powered drag truck...

    SOLD - 2007 Dodge Ram 1500 QC 2wd Hemi
    1/4: 12.63 @ 104.92 NA
    1/8: 7.98 @ 84.83 NA

    Quote Originally Posted by DaKing View Post
    "It rubs the oil on its piston.."

  8. #18
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    Quote Originally Posted by dline View Post
    Maybe not

    But compression didn't scare me I ran 100 sometimes even leaded once in awhile and boy that smelled good
    You had a cam that was meant for a 3.58" stroke motor with 9.6:1 compression. With a bigger cam and more overlap you would have been much safer

    let me try, im a genius

  9. #19
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    How do you measure quench? Would like to know how much quench I have.

    Sent from my SAMSUNG-SGH-I537 using Tapatalk
    2005 DAYTONA - 468 Aluminum HEMI, 4l80, FTI converter, 4.56 🌽

  10. #20
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    Quote Originally Posted by LETHAL HEMI View Post
    How do you measure quench? Would like to know how much quench I have.

    Sent from my SAMSUNG-SGH-I537 using Tapatalk
    Is your motor apart? Can't figure out your exact quench if it isn't.
    Built, Not bought.

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