I think this discussion is sort of going in circles. I started out mentioning that equal bore and stroke gas & diesel engines, with like aspiration, have at least equal torque - and often the gas engine has more torque. That includes at low RPMs.
I made no mention of longevity or fuel economy. Just the max an low-end torque and horsepower myth. Many of the responses had nothing to do with the initial statement.
You state . . . "Lug them down to half rated speed and the diesels almost always lay a whippin' on the gas counterpart. "
I'm still waiting for you or anyone else to name even one engine series to support that argument - with the test data.
I posted data on many engines that share bore and stroke and came in gas an diesel and all those gas engines had the same low-end torque at the diesels - and sometimes more.
I'm not saying that maybe a few exist somewhere - but I've yet to see one or read about one. Since so many say I am incorrect - prove me wrong and post data to the contrary.
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