gear drives
#11
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#12
There seems to be a lot of opinions on the topic, don't know how many people have actual proof of what they are posting. Best answer I read was, it all depends on application. Cummins puts gear drives in all of their motors, for what that's worth.
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It has to do with harmonics being trasferred from the crank to the valvetrain. While I dont have any testing data, I was under the understanding that gear drives transfer the most harmonics, chains come in second, while belts absorb all and transfer none to the valvetrain.
#16
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And years ago I did see with my own eyes a back to back dyno pull on a sbc it was 30 hp on a dyno.
#17
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I think all newer diesels run the injector pump off the front of the engine, I know several guys a while back dynoed race engines and showed loss of H/P on all, like Vinny said, belt transfer the least amount of harmonics back thru the engine...now Bob M. can probably give you the best info here...
#18
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I think all newer diesels run the injector pump off the front of the engine, I know several guys a while back dynoed race engines and showed loss of H/P on all, like Vinny said, belt transfer the least amount of harmonics back thru the engine...now Bob M. can probably give you the best info here...