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Old Mar 3, 2020 | 01:07 PM
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Default comp ratio

Looking for recommendations for static compression ratio on my combo. Stock crank ls1 with forged rods and pistons and a d1sc. Would like to know everyones thoughts and what static ratio would be safe running about 14 psi.I fully understand alot of the safety is in the tune but apart from that. Tia
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Old Mar 3, 2020 | 01:25 PM
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Dynamic compression is what matters. Need cam specs. Etc
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Old Mar 5, 2020 | 04:18 PM
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Static compression. I'd go for around 10:1, maybe as low as 9.5:1
There's no magic number really. I personally hate low compression boosted motors. Like in the 8's or right at 9.

Will need to check and set dynamic compression with the cam
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Old Mar 5, 2020 | 06:27 PM
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Million dollar question is what fuel?
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Old Mar 6, 2020 | 01:44 AM
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E85 all t3h things.
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Old Mar 6, 2020 | 11:51 AM
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Pump gas 93, sorry. Was thinking about 10ish to 1. I am also aware cylinder pressure is what matters and will spec my cam accordingly but I just wanted some real world opinion for my static so i could get my bottom end put together. Appreciate all the feedback and keep it coming
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