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from what i understand the biggest help to FE when it comes to the engine temperature is that it vaporizise the fuel better cause the hotter the engine the hotter the intake manifold which heats the incoming air, i checked the temperature of my intake manifold at 180 degrees and it was 269 degrees at the ports(my engines a I6 with the intake right next to the exhaust too) i was thinking of adding a inline fuel heater to get the fuel up to 180 degrees before injecting it into the engine so it vaporizes instantly and if it vapor locks then drop to a 165 t-stat and 0w30 oil or something(also dropping the engine temps allows for higher compression ratios with the same fuel octane forthermore the lower intake temperatures also is equivelant to higher fuel octane)
(8 degrees engine temp drop = .25 CR increase/for every 10 degrees intake temp drop = 1 octane point increase of fuel equivelant)
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