Epijk@aol.com writes:

> 370HP from a normally-aspirated IO-540 at 2700 RPM????????
> Sounds like it was built by Dave Blanton!
> Some people will believe anything.

> Come on down and I'll show you a normally-aspirated IO-360 making 500
HP.
> (Just give me a little advance notice so I can be sure the dyno is
correctly
> calibrated.

> Jack Kane


Aerobatic pilots routinely fly parallel valve IO-540's, pumped up to
produce 325hp at 2700rpm.  That's an increase of 65hp over the stock
engine's 260hp.  As a side note, it's fun to watch those little beasts
start up -- the compression is so high that the plane shakes like a wet
dog when the engine fires.

Given that the angle valve IO-540's normally put out 300hp, a 70hp
increase is readily achievable -- at the probable expense of some TBO.

Regards,
DJ Molny
Extra 300L N133DF
Lancair - Maybe someday


(now back to lurking...)