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Cheers I remember it now.Good e85 is 105ron and runs 14:1 comp safely. 93ron runs 10.5:1 comp safely. Obviously with modern ecu`s you can push safety limits further. The fa20 is 12.5:1 so it would fall in between.
Nothing like having a nice anti knock safety margin with your fuel. For 2hp loss why run crappy fuel. !`m possibly a bit spoiled with our e85 its exxy but always e80+.
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