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b930 b930 is offline
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Join Date: Apr 2011
Posts: 235
22 is probably on the edge if other factors such as mixture and inlet air temps etc are not spot on. I run 20 with 1.2 bar but use a big intercooler with a GT35 and fat mixtures and it seems to be fine. Never heard recorded any knock on the SDS, but I am not using a different EMS without knock control so I just go with 20 at ~1.2bar to be safe.
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1988 930: 3.5L 100mm LN slipins, LN FFA rods, Supertec studs, GT3582R with T4 1.07A/R twin scroll housing, RarlyL8 equal length divided headers, dual Tial MVS 38mm WG's, Carrera 3.2 heads with 993 big valves. 964 Cams, full bay IC, KEP st1 clutch. PE3 sequential ECU with 750cc EV14 injectors, CoP twin plugs, J&S Safegaurd, Aquamist HSF3 water inj. Wavetrac LSD.
Old 01-27-2014, 07:57 PM
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