You forgot to mention that the classic race-car longitudinal [engine] layout
also moves the weight of the engine further forward for better weight
distribution and lower polar moment of inertia than your typical sidewinder.
Yes, your are corrct that sidewinders used less power of the geartrain. Those
hypoid ring and pinions have to have more sliping going on than a pair of
spur gears. There is the matter of thrust bearings. A sidewinder does not
create a lot of thrust on the gear shafts.
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Login name: phile In real life: Philip J Ethier
Phone: 298-5324
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