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Originally Posted by patrickt
The Turkey Pan provides little, if any, performance increase. More likely it lessens horsepower.
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I have seen this thought multiple times on this web site, but I don't understand why.
The density of air is a factor of the absolute temp of the air. The hotter the air, the more a given quantity of air will expand. Hence the hot air ballon will rise.
If the under the hood air temp is 140 F (or 333 Kelvin) and the ambient air temp is 80 F (or 299.7 Kelvin), then the ambient air is 333/299.7= 111.1% the density of the under hood air. Therefore you should get 11.1% more air into your engine and correspondingly make 11.1% more hp. That will take a 450 hp engine to 500 hp. That is no small gain for some simple air ducting.
OBTW - thanks for the other information. I didn't mean to be disrespectful to the person answering my questions. I think you will be impressed with your dyno results if there is a fan to simulate going down the road.