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I have a couple of questions about piston ICE's:
How much pressure could be developed in the combustion chamber *just* from fuel burning? If there was no compression of the intake air (with only a turbocharger in place) would the resulting pressure from the burning fuel be enough to get decent torque? Particularly, if you did not have to "do the work" of compressing the air with the piston -- which uses the momentum of the flywheel, then would the net pressure gain be the same?
Do diesels get all their additional efficiency from the higher compression? Or, are other factors contributing?
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