Hi Folks
Does any one have any experience of using an 91FX in a pattern plane.
I got an MK SKYSTAR 90 for my xmas from the girlfriend and I was hoping to put my OS into it.
The bug bears being I will need to run the beast with a pump and probably on a tuned pipe.
Does anyone have an experience ( good or bad) of using this beast in this manner.

I guess most of you are wondering why I am not dropping a YS engine into the plane well the answer is simple 30% nitro is not cheap over here in the UK and I have the OS sitting doing nothing anyway.
But MK kits are alot more reasonably priced over here.
Thats life I guess.

Any help would be gratefully accepted

Mike