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high compression question

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Old Sep 27, 2012 | 08:34 PM
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evoboy2006
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high compression question
Hey guy i have question is 11:1 compression on 2.1 build to high for e85? Dome input please thanks
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Old Sep 27, 2012 | 10:09 PM
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it'll be fine.just don't try to run it on pump gas very hard.
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Old Sep 28, 2012 | 01:17 PM
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You will be ok. I just had DB build me a 11:5 CR motor and will run E85/E98.
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Old Sep 28, 2012 | 01:20 PM
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Just don't push it really hard on 91/93 I would stay at mid to high 400 or 500 horse but on e85/e98 that motor will love it
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Old Sep 28, 2012 | 04:34 PM
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I wouldn't run that high of compression. Unless you only plan on running e85 and don't plan on selling the car.
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Old Sep 28, 2012 | 05:15 PM
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Originally Posted by evo8426
I wouldn't run that high of compression. Unless you only plan on running e85 and don't plan on selling the car.
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Old Sep 28, 2012 | 07:52 PM
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will it limit my boost on e85 with that compression?
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Old Sep 29, 2012 | 11:32 AM
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Originally Posted by evoboy2006
will it limit my boost on e85 with that compression?
no
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Old Oct 2, 2012 | 06:11 AM
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Anyone else input
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Old Oct 2, 2012 | 07:22 AM
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i know people who run a lot higher compression ratio than that for e85.... 13/14:1

on methanol, we would target as high as we could get for the piston & valve sizes.... ~16.5:1
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Old Oct 2, 2012 | 10:47 AM
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i know people who run a lot higher compression ratio than that for e85.... 13/14:1

on methanol, we would target as high as we could get for the piston & valve sizes.... ~16.5:1

+1
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Old Oct 2, 2012 | 01:44 PM
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Originally Posted by Aby@MIL.SPEC
i know people who run a lot higher compression ratio than that for e85.... 13/14:1

on methanol, we would target as high as we could get for the piston & valve sizes.... ~16.5:1
+2


I have personally ran 12.5:1 and 40psi.
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