Hey Feral!

I've been thinking alot about the figures you suggested - 8.2 dyanmic c/r for a dissy a15 engine.

It sounds like it comes from your personal experience - right?? Also, I calculate the dynamic c/r of a bog standard a15 to be 7.7:1. This surprised me as 8.2 is not much higher than 7.7.

I was then just wondering if the 8.2 figure you mentioned might have been a figure for standard 87 octane fuel instead of the 98 octance BP ultimate or similar fuel I intend to run.

Datoman_1000:
Have you run your engine yet?
We ran ours on the weekend and it burst into life on race fuel. Havn't tried anything else yet. We only drive it up and down a short drive so far but I will keep you posted.
Carbies need tuning as it struggles to idle at 1200rpm. Otherwise ok.