Originally Posted by tom2112
Let me get this straight, these spacers go between the intake and the engine block right? And the whole idea is that they insulate the intake from direct heat conduction from the engine block, thus reducing the temp of your intake.
That sounds like a good idea, but won't this also have another affect: raising the temperature of your engine block? I'm no race mechanic, but that doesn't sound like a good idea to me. So I'm curious, can someone explain?
TIA,
Tom
Tom - The intake plenums are such a small percentage of the overall metal in the heads, block, and supercharger that there is no change in overall engine temp. This might hold more true if our motors were air cooled.
Your overall description of the phenolic spacers is right on.