Re: 4020 engine torque??

Posted by low budget on December 28, 2006 at 15:48:24 from (170.215.215.104):

In Reply to: Re: 4020 engine torque?? posted by jdmaris on December 28, 2006 at 11:31:43:

Why does peak torque occur at lower RPM than peak HP? The simple answer is volumetric efficiency. As the engine speed increases the cylinders don't fill quite as much, say only 70% instead of say maybe 85% at peak torque RPM. This applies to injection pumps too. Does that clear it up some?

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