[PT-Dave]

quote:
originally posted by Dalite:

If the Intake Manifold gasket is thinner than the stock one, then the compression may be raised; making up some potential HP at the same RPM and boost. If it is thicker, than the compression may be dropped further to allow higher boost levels to be obtained (for some reason, yet to be explained).

I have an issue with this statement, Dalite. The gasket between the upper & lower intake manifolds would have no effect on compression that I can see. It would only make the distance for the air charge to travel a minute amount more or less. I have not looked under the hood since reading about all this, but could the reason for the gasket replacement be due to the necessity to remove the upper intake to replace the injectors? I'm just guessing here, since I have never done anything like that. Maybe it's just a stonger, more durable gasket, or, maybe it has some heat insulating properties to enhance performance. Again, just guessing.