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Weak ignition coils? V70-XC70

posted by  Stickbuilder on  Sun Sep 16 04:11 CST 2012
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last visit: Fri Oct 24 03:31 CST 2014
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James, when you mention the RPM range and being under boost, I'd speculate that you are talking about exhaust driven superchargers (Turbos). I'm referring to a crankshaft driven high displacement Rootes type supercharger. These produce boost at idle. I've owned several, and they actually do require a cold plug, low compression, and a small gap. Depending on the amount of cylinder pressure, this can require plug gaps down to 0.020 inches. These superchargers can eat up to 30% of the total horsepower produced by the engine. Some of them use more horsepower than your normally aspirated engine produces.
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New Weak ignition coils? [V70-XC70]
posted by  Stickbuilder subscriber  on Fri Sep 7 08:16 CST 2012 >


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