Hi, new to this forum. I have a couple of question s to start me off.
1) The old Cosworth DFV engine developed 400 to 500 BHP at say 9000 RPM and the current engines are developing 900+ at 18000 RPM. Does this double revs, double power rule generally hold roughly true in engine design?
2) I saw another topic in this forum saying that the reason for more torque from a V8 over a V10/V12 was the longer stroke and hence, I assume, more leverage at the crankshaft. My question is, how much does an increased piston surface area affect torque. ie take a V8 and V12 with the same capacity and stroke, the V8 would need a bigger bore and hence piston area. Would this V8 develop more low rev torque than the V12?