410 supercharged

turbodart68 said
Well, your compression isnt too far off. ATI (parent company of Procharger) recommends nearly 9.5 to 1 compression as ideal. I think if you moved to a thicker head gasket you would be right on. Are you planning on intercooling it? I think racegas is a must on a serious supercharged motor, however with intercooling and moderate timing and low boost (under 10 psi) I think pump gas may just work. Centrifugal superchargers build boost as RPM increases. This is important as a motor is more prone to detonation when the load is high and the RPM is low. So if you have a loose converter and a light car you can do it with minimal troubles.

Would he loose the quench on the engine by adding a thicker head gasket? To drop 3/4 of a point on compression the gasket would need to be pretty thick no? How about having the heads worked on to increase the CC which will lower the compression?

I had a 9.5:1 Supercharged engine before with 10lbs of boost and for some reason I could not get it to stop detonating unless I pulled a ton of timing out of it. It also beat the Rod Bearings out of it more than once. It built so much crankcase pressure also that it spit all the gaskets out of it. I even POPPED Cometic gaskets. It was a different engine, different build at that.