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Originally Posted by jlm44
The key here is expanding gases not flow, turbos work off of heat expansion, thus giving the diesel the advantage due to higher compression = more heat present.
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Gasoline burns hotter/diesel burns slower. Typical max EGT's in a diesel exhaust is 1400 degrees where as a gas will be as high as 1800.
Yes, more compression will produce more heat. Comparing all things equally the gas engine will have the advantage.