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Originally Posted by boneheaddoctor
Brian...this is my thinking...Jethot is a ceramic coating it has insulation properties...when used internal and external it should reduce heat transferred to the intake charge from the intake which does get plenty hot, even just 10 degree drop on intake temps on a gasser makes a noticible difference in power.
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Here is the question:
Is the air temperature outside the intake manifold higher than the air temperature of the charge? If so, by how much? This higher temperature air, caused by the exhaust manifold will serve to heat the intake manifold if it is significantly higher.
But, with the charge temperature estimated to be over 250 degrees at maximum turbo speed, I'd be surprised if the manifold is running this hot via heat transfer from the exhaust manifold.
Anybody ever use an infrared gun on the intake at idle after a decent run?