All,

I havent had much time to build some race planes but I was helping out the woodland quickie and Q40 stuff. Richard talked me into at least going and watching the next SAMS race in couple of weeks. well I couldnt have anything built in time but I do have a Eflight P-51B electric kit sitting around. Now before some of you jump in here and say its an electric arf and all, let me say I have been modding arfs for a long time and making them go fast. I think the airframe will hold up. Full sheeted wing and Fus. spar has full length sheer webs. So anyway It has 460 sq of wing and I so happen to have a New 91 AC in the box.

Ok now for the questions.

1. what is the max nitro for the stock engine?
2. What is the max ground RPM?
3. Is there anything I need to pay attention to on the 91?

I am planning on running a 12x14 on 50% or more but I have no experience with this engine. Will this be to much of a load? I have some 11x14 props also. If I stay with stock airframe the 14" pitch might be to much as the plane has a thick14% wing and has the belly scoop. the only class I would want to run in would be the Gold class. I can shorten the wing to 440 Sq for the 91 and remove the belly scoop. The weight looks like it will come out to around 6 lbs.

Ok valid thoughts welcome.