I don't have the specifics on cowl diameter, but when Chris get's a chance, maybe he can chime in here... or I'll get more info soon. I'll bet the 60 twin would work though...
Good eye on the cowl... it does indeed look like there is a faux radial molded in the cowl face... shweeet! THat gives us the option of opening the cowl up where we want for cooling/baffling should we need it...
The prototype was 17 lbs with a DA50 and the KS1060 tuned pipe... unlimited capabilities at under 1000 ASL... A stock muffler system is likely to come in around 16.5 or so... (judicious builder we are)
