ORIGINAL: Knife Edge2
My club has been using OS Max LA .40 's for our pylon races but they have been discontinued. We have been looking into these engines GMS .40 ABC, Super Tiger .40, O.S. 25FX / Non-Ringed w/Muffler, GMS .32 ABC BB, SuperTigre G-34 Dual BB Ringed w/Muffler, and Magnum XL-28A w/Remote Needle Valve. We would like to have something similar to the O.S we were using. Any comments?
For some good info and discussion on this subject, scroll down to the Pylon Forum, general pylon discussions. This subject is pretty well hashed out there by active users.