Quote:
Originally Posted by redpoint5
I think another problem with turbo engines is they tend to lower the compression ratio. My guess is the motor with more displacement had a higher compression ratio than the ecoboost.
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Even though direct injection is supposed to allow for a higher compression ratio with fewer risk of knocks, whenever there is turbocharging in a gasser even the ones with direct injection get a lower compression ratio. But anyway, due to the naturally colder intake temperatures at an aspirated engine with port injection, it still seems better suited to heavier duty.