Well I'm running 10.5:1 pistons with Ferrea flat face valves so my compression is between 10.5-11 and I'm running tons of nitrous on 93 octane with no problems. It's not boost but it's still FI.Originally Posted by 2Fast4Radar
8.5:1 is low for a turboed car? Are you serious?
I have 8:1 compression and the highest I would ever go would be 8.5:1. Detonation and knock suck!
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