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Ben V Ben V is offline
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Join Date: Oct 2009
Posts: 29
Detonation 1bar!

Does anybody have any ideas?

I have a 964 turbo with full custom exhaust system no cat, Turbosmart 48mm wastegate, KN air filter, K27 7200 hi flow, hi/lo boost control ie standard .7bar and 1 bar.

I think the engine is detonating under boost, very very mildly on low boost .7bar if non at all, but at 1bar high boost distintive tinkle (like coins rattling in the ashtray)
I am pretty sure it is detonation so needless to say I am not allowing it to boost until I reslove the problem!

My thoughts are possible injector problems (semi blocked) or ignition system retard?

Last edited by Ben V; 11-02-2009 at 07:22 AM..
Old 11-02-2009, 07:17 AM
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