Thread: 964 cam tuning
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proffighter proffighter is offline
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Join Date: Aug 2007
Location: Switzerland
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964 cam tuning

Hi fellows

I red a few threads, but no clear solution for my question found

I got an 930/67 engine (Euro 3.3 '81) with some mods:

Headersand muffler, K27-7200, B6 965-style IC, IN and EX ports increased, lightweight clutch and flywheel, 1.0bar boost withd Tial WG, BOV 965-style, fuel enrichment over 0.7bar, modified crankcase (bridges rounded), compression ratio 7.7:1, and 964 cams

I adjust timing to 1.26mm now, like SC cams, but I like to improve low, non boost area. So how far can or should I go? I've red, 1.7mm is good, other say 0.8 like stock or SC timing. I know it can vary a lot regarding the engine built, but maybe someone got an similar or at least nearly engine built and can tell me his experiences or advises.

If you need/want further information, please ask

Thanks in advance


930 Turbo '81 Too many modifications to list
Old 03-15-2010, 02:41 PM
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