Hi - does anyone know what the parasitic losses are between the two tranny types? Here's a better way (I think) of asking the question:

In the current 610 motor configuration, does anyone have stock dyno measurements for a manual equipped truck as well as for a similarly equipped auto truck?

Just trying to see what the differences are in the amount of power being put to the ground....

 

B-D Power web has forums for Dodge/Ford/GM. They, forum members and B-D techs, were talking about testing on Edge Juice, when it hit the market, for the DMAX/A and found the Allison needed 50-55 hp to operate. The ZF 6 speed standard needed 25+ hp to operate. B-D tech folks compared that loss to 35-40 hp loss the 4L80/47RE/48RE size trannys show on the dynos.
This was some time back. E-mail some of the box makers as they may have more up to date info on the two trannys your asking about.
.......JIM

 

Mine is the auto. 48RE. It dyno'd 280hp/528tq factory in 4th gear, stock w/factory air and exhaust in 105 degree Summer heat on a dynojet.

Guess you could just find somebody with the 6 speed to give you their dyno numbers for somewhat of a comparison. There may be other factors involved, but that may help some.

If mine is pushing the rated 325 at the flywheel, then I guess my drivetrain/tranny etc.....gave it a 45hp loss.