Thinking of building a 1950cc (87x82) engine for my spyder.
Currently the car is set up for highway cruising. Stock 1,2,3 ratios with a 0.84 fourth and 3.88 R&P.
I'm looking for more bottom end torque, but the car does fairly well with it's 1915cc C.B. engine.
My question is, what happens to the torque/rev.situation as you lengthen the con rods. C.B. says the torque curve "moves up".
I assume that's along the rev. line.
The car is currently limited to 6,000-6500rpm. and the new engine would probably see the same use. The current engine can and has delivered 33+ mpg, an i think the 1950cc would not decrease this by a large amount.
I'm aware that balancing will be critical, but Jake Raby's shop is around the corner (35 mi.). I'm sure he would do a first class job, even on a type 1 engine.
Any and all advice welcomed.....Thanks in advance....
Leon C.
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