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lucittm lucittm is offline
Manassas, VA
 
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Join Date: Apr 2007
Posts: 1,211
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Paul,
How many miles on the engine? If there are close to 100K, you may want to think about new pistons and cylinders; considering the tolerances of course. This will also solve your problem of compression ratio being a bit high for a turbo. Reducing CR by changing deck height dimensions will lead to valvetrain geometry issues.
With all the head work, why not go to twin plug? Unless your pistons are flat, the flame propagation will be a problem for you.
How about some picture of the insides of your engine, that will get people motivated to chime in.

Welcome,
Mark
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1991 964 Polar Silver Metallic Turbo Coupe
Old 01-20-2009, 06:14 PM
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