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My car is MAP. I don't have conclusive results that the warmer intake temp is correlating to increased efficiency other than what the UG tells me. Here's the test criteria for the block, which also increases the AI temp.
Ran a 10 mile stretch at 55 on cruise both ways, twice. With and without block.
Without averaged 41.6, AIT was 65F.
With averaged 44.6, AIT was 85F.
Since it was done purely on cruise I am inclined to believe that the benefit is purely aero, especially since seeing that the AIT needs to be above 100F to come down .05 gph.
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