bassoon811

***I am only making a observation, I do not know if this information is sound. Someone that knows more of the workings of the rotory would be more suited to answer this question.***



After reading many posts about how much the Renesis loves to rev and redline, I was thinking about how the rotor only spins 1/3 that of the E-shaft. Some simple math shows that at redline the rotors themself are only rotating at 3,000 rpm which is very low compared to other cars, even V8's that have very low RPMs compared to 4 or 6 cylinder engions which the Renesis is often compared to.

And sinse the engion is rotating a 1/3 of the rpms at the tach max HP is made at 2833 and 1/3 rpm and torque at 1833 and 1/3 rpms, of the rotors.

wakeech

that's not exactly it.

the output shaft (called an eccentric shaft) is where the rpm is measured at, and really does turn at 9000 rpm. the rotors, you're right, only spin at 1/3 that speed, making the e-shaft make one full rotation per combustion event (which only takes 1/3 of a rotation of the rotor).

RobDickinson

Pistons only fire once every 2 rotations.

A rotor will fire 3 times per revolution, or once per rev of the eccentric shaft.

compared to a 3 cylinder piston engine @ 6000 rpm - each cylinder fires every 2nd rev so thats 9000 ( each cylinder goes 3000 times) bangs for 6000 rpm.

A rotor would be equivelant of that 3 cylinders and you'd get 9000 bangs at 9000 rpm.

Tho it all gets kinda complicated when you try compare the 2 engines.

bassoon811

I had a feeling that my inda was not entirely correct and that someone with more rotory knowalge would be able to enlighten me. Thank you