930 detonation?????

[jobenz]

Need Information on what causes detonation in a 930 turbo and possible remedies??????????

[beepbeep]

Causes:

Too much boost, low-octane fuel, to much iginion advance, carbon deposits, too high static compression, high intake-air temperatures, oil in intake.

Remedy:

Higher octane fuel, lower boost (lower power), lower compression (lower power), good plugs, twin-plugging, better intercooler, water-injection, less agressive ignition curve (lower power), cool air, separate oil-tank ventilation, clean sparkplugs.