Thanks Troy for clearing things out for non believers 13x8 makes Matt a good customer so nothing wrong with that. I still argue that Saito 82 would make a little more power than YS 63 on same nitro content with 13x8 prop and it would be happy around 8500rpm. However it still sprays oil like hell and doesn't have a pump. If your are not running YS 63 on 11keur your missing some of the nicest rpm range of this engine.

Well my YS 63 is on Oxalys also