Cam lobe centers Gen 2
Hello all. I have searched and read various threads on lobe centers preferred. I have a Gen 2 motor with a gen 3 crankshaft and gen 2 cams. I will, at some point, change the cams when I get set up a little better. I recently rebuilt the engine and am at the cam stage of this build. The application of this engine is in a 4 wheeler that will have more weight than a bike with rider.
I have engine simulator that I use to change variables to help set up exhaust, cam timing, CR, ETC. For what I need, the lobe centers need to make more torque to get off the line (this is a drag racing application). I my simulations the best suited lobe centers seem to be 100 intake and 108 exhaust. As simulators are not perfect, I wanted to get some opinions on this. Do not focus so much on tq/hp at any given RPM, but at the relationship between power output and the lobe center changes. This mock up is with a detailed exhaust at specific lengths not seen in production bikes. Also note the compression ratio changes based on cam timing. The increased torque from cam changes is at the cost of higher cranking compression/static and dynamic.