Quote:
Originally Posted by FED 387
Gentlemen--- Car Craft Magazine had an article a while back whereby they tested different transmissions and the Horsepower required to turn a transmission. I do not know if these are totally stock trans or were modified in any way, I also do not know if theTorque Convertor was used in these tests. These are THEIR results:
Powerglide---18 HP
Turbo 350-----36 HP
Turbo 400-----44 HP
C-6--------------55-60 HP
C-4--------------28 HP
A904------------25 HP
727--------------45 HP
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Somebody also had an interesting comparison of differential efficiency. I don't recall who, but do remember that a Dana 60 and GM 12 bolt were at the top while the Ford 9" was at the bottom. Mopar 8 3/4 was in between, but I don't remember what else was included.