[Kozy]

Originally Posted by hightower99

This means that when the revetec is running 4000RPM with the geared output shaft it is running like a normal engine, however without the geared output shaft then the pistons and valvetrain have to run faster. To produce 4000RPM at the output shaft the pistons have to achieve the velocity that a normal engine does at 12000RPM, same with the valvetrain.

Yes that's what I mean. (I got the 3:1 the wrong way round) If it were to run at an equivalent 12000rpm maximum without a geared output, thus producing a maximum output speed of 4000rpm, and was then linked to a high speed diesel gearbox with ratios suited to that kind of engine speed, how would it perform.

Please consider that while I understand that Revetec is designing this engine as a fuel efficient economy engine, I am on a Motorsports orientated engineering course, and my project is to assess this designs suitability to a high speed racing unit.

My thinking is that if it can be used ungeared up to diesel operating speeds, then it could be used with a diesel gearbox to provide required road speed? I'm trying to figure out how this would perform in a real world situation.

The simple physical model I have in my head says that if power can be maintained up to that speed, then it should work quite well?