Power outputs

[Mike Costigan]

Given that you run your motor at 50 mph Mike I think it's producing more than 10.5bhp at 2,400 rpm (747.5cc engine, up-draught carb).

Yes, Dave, that's my point: 50mph is approx 3,200 rpm, so is my 10.5bhp engine actually producing something like the 13.5 bhp at 3,000 rpm of the 1935 engine, in which case what was the advantage of the side-draught carb and 'better' cylinder head? More significantly, I regularly take the car to 30-35mph in second, which equates to 3,500-4,000 rpm, so the engine is probably developing 14-15 bhp, not that much less than the 3-bearing high-comp engine!