> All differentials take a lot of power. More even than the
> transmission. Spiral gears (long tooth contact) 90 degree
> direction conversion, planetary or LSD. It all sucks power.
> Absent a significant design difference they'll be roughly the same.
I agree. Two things possibly worth noting :
1) the power wasted is roughly proportional to the power transmitted, so TRs
will presumably lose a lot less absolute power than Hot Rod measured. IOW
if they measured 25 hp lost behind a 500 hp V8; a TR with 100 hp might only
lose 5 hp in the diff.
2) A higher performance lubricant may help save some of that power. Hot Rod
also found something like 7% more power at the wheels by converting engine,
trans, diff to full synthetic.
I don't have weights either, but the TR3-4 unit seems darn heavy to me. The
smaller Ford might not be that much worse.
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