Turbo on RX-8

[mazdamaniac]

Originally Posted by phoenix7

HP-wise the high comp motor wins but isn't the lower compression motor safer for boost application, like Herb said, for the safety of the motor? Or is this another misconception? I know that tuning plays a huge role in the safety and longevity of the motor but doesn't the high comp motor wear and tear at a higher rate?

Every motor has a finite number of puffs in it. The more powerful those puffs, the fewer it will make over its lifetime.

Tuning is everything. Period.
If a motor is properly built, tuning can extract power out of it right up to the point it breaks from load.
Almost no one ever gets that far before they make a mistake or get it too close to the edge of what available fuels and prevailing conditions allow.

Originally Posted by phoenix7

Also, What I meant by "yielding little power" was : yielding little HP per dollar spent (compared to the older rotaries).

Now, that is a different question completely.
The people that have figured out how to make power with this motor are charging what the market will bear. Wouldn't you?
Do it yourself and the material investment is no different than any other motor.

As the charts I posted indicate, +300 HP is reachable for about the same cost as it would be on any motor that only made 190 or so to begin with.