Can you all give me info on the Drum rotor 7.5 K&B. Reliability, power, mods necessary to help, etc. I have an almost new one I traded for and would like to put it in an aeromarine scorpion 37 inch hull. It has the higher timed exhaust cylinder as the notch at the top of the exhaust port indicates. Drum appears to be well made, ie good bronze bushing for the rotor. Carb is quite large in venturi diameter and has remote needle.
Also is there a water cooled exhaust made for it. I have a prather exhaust throttle I could freeze the throttle open with red locktite but would prefer something lighter.
I realize they are not of the output caliber of the Mac and Cmbs but hope with a good setup and the scorpion hull which I really like could be made to be competitive.
Pipe settings would be helpful also. Plan to run 40% nitro.
Regards Curt
Also is there a water cooled exhaust made for it. I have a prather exhaust throttle I could freeze the throttle open with red locktite but would prefer something lighter.
I realize they are not of the output caliber of the Mac and Cmbs but hope with a good setup and the scorpion hull which I really like could be made to be competitive.
Pipe settings would be helpful also. Plan to run 40% nitro.
Regards Curt