Hopefully this is the right forum, i'm trying to guess at what speed my GP RV-4/rocket will go. I cleaned up the plane a little bit, mostly around the cowling, the plane has always been fast when stock. I had a supertigre 45 in it previously, now I just put in my piped webra 50. I am using a 10-8 APC spinning about 14,000 static.
It is easily one of the quickest planes at our field which is mostly sport flyers, it definetely won't keep up with some of the stuff in this forum though.