E85 370 turbo compression.

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01-07-2011, 12:51 PM

94tt383

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E85 370 turbo compression.

What is the "ideal" compression ratio for a forged 370 on E85? The turbo will be an s480 with an air to air intercooler. Motor wont see more than 20psi. I was thinking of some where around 10:1. any thoughts?

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01-07-2011, 12:56 PM

HydroStream6

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I'd go 11:1

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01-07-2011, 12:59 PM

rotary1307cc

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FWIW I was running 10.6 static on 8psi, 24* timing, and no IC without problems. E85

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01-07-2011, 01:10 PM

94tt383

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i should add that the heads will be 4 bolt, no oring for now.

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01-08-2011, 12:45 AM

94tt383

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anyone else?

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01-09-2011, 07:56 AM

Mr.Big

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9.25:1 here, zero issue with power, or "laziness"...

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01-09-2011, 09:00 AM

LS1NOVA

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I would go around 9.5. Not really much to gain by going higher. Low speed response will be good and no use going any lower with E85 and an intercooler.

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E85 370 turbo compression.

E85 370 turbo compression.

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