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Originally Posted by Brian Carlton
With the intake being aluminum, you would Jet-Hot it???  |
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...My honda has a 1/4" thick phenolic intake isolator and the same on the throttlebody...(which is heated to avoid icing in winter) these two drop intake charge temps a very large number....but I don't remember the numbers to be honest......in the summer its very notcible.
So yes while it looks nice, I believe the Jet Hot coating is dipped not sprayed, so its coated internally as well as externally and you are going to reduce intake charge temps from an uncoated intake.....put your hand on that intake when you've been driving a while...or better yet don't becasue you will burn yourself.
Now I am talking the 617 engine...but it will apply to the 603 that is also being discussed in this thread.