Ridzhard, You can get more than that with the right mods to your 250r but it will require that you raise the compression and that means running race gas. Porting, head mods with a pipe silencer and different carb will make your 250R outrun and out drag your piped only Banshee. I would suggest a FMF fatty SST H-42 with a FMF ram valve and porting from Rick at Macdizzy.com He has a port map of my '88 250R that CT did that he improved on further but slightly raising the port height to 188 degrees duration on the exhaust and milling the head for an UCCR of 15.5:1 (207 psi). Running the flattop piston with this kit gives me 55RWHP on VP C-12 (green) and about 59 with 10% propylene oxide power additive with the race fuel. The bike has a nice smooth strong pull from bottom to top with not to much "hit" in the middle to spin the wheels so it hooks up very well. I am currently using a 38 air stryker carb for best throttle response with good topend. This set-up will beat any Piped only Banshee and give a much better broader power curve than your Banshee currently has. Send Rick an e-mail Rick kirmil and tell him you want your cylinder ported to my specs. You will love this engine, I won the Georgia Flat Track league ATV Pro Class in 1998 with this exact same engine against many big bore ported banshees and a Curtis sparks 330R (Norris Quinn's to be exact) Norris is this years Grand National Open Pro-AM #3. Tell Rick Scott sent you.

CT250R