How Do You Increase Power And Torque At Higher RPM Range On Sakae 21 14-Cylinder Radial Engine?
1. Getting the optimum Air:Fuel ratio will help (usually peak power is between found between 12.5:1 and 13.5:1) 2. Fuel injection is already under pressure cooling won’t do anything. 3. I’m not familiar with the engine, but increasing RON (research octane number) will increase power, but the motor should be tuned. 4. Absolutely, but looking like it will flow better is a long way from actually flowing better. I’d be looking at regrinding the cam if you can (although I guess it’s probably already optimal), better ignition components and getting timing dead on, but really by the sound of it there won’t be allot he can do, just make sure it’s in good tune.