Quote:
Originally Posted by Robbbyg
I use 100 RON Premium Octane,
what would be the ideal setting for this fuel?
Rob
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Manual says 29 BTDC @ 4000 with 95 euro spec octane. so that is spec in 1977 so it most likely leaded. With this car I always run about 25% 112 leaded, blended with 75 % of 93 octane with a somewhat modded 1977 930 with around 400 crank Hp, 3.2 liter. 7,5 compression, Euro 934 distributor, twin plug and 1.0 bar of boost. Not sure of cam spec ( modded decades ago) but power is increasingly strong from 4000 to 7000. Turbos love leaded fuel. If your 100 octane is not leaded and you are not twin plugged and have above 7.5 compression and are running above .08 boost for extended runs, I would think 29 BTDC might be a bit much, as per Brian's opinion.
