does anybody have any tach readings on an os50sx??
I just installed on on my whiplash & havent run it yet.

Gil

I recently tached mine on my GP Super Sportster.

10x8 APC = 12800 RPM
11x7 APC = 10900 RPM

-Gregg

Thanks Greg:
I am hoping to get a lot higher with mine, I will be running a 9x8 apc prop & an ultrathrust muffler. I'll post tach readings when I get it running.
Thanks
Gil

My OS 50SX is new so I am still running it pretty rich. It is a very good engine, I have the heli version on my raptor heli.

Good luck.

-Gregg