jmtandem wrote:
Just curious, when you reflashed the computer did it change the horsepower and torque values. The newer Cummins with the manual are rated lower than the automatics. In fact I think it is around 660 torque for the manual and 850+ for the Aisin in the new ones. I wonder if that difference is all software and if it affected your '05 from 610 torque stock to a lesser value when you did the reflash to a manual box.
I also like manuals espeially for towing in the mountains, just not sure they are worth 200+/- foot pounds torque difference in the new trucks. I can't remember if the '05's had any stock torque/hp difference between the auto and the manual.
The max "rated" input torque spec for the g56 is 660ftlbs. The 5.9s rated at 610 ft lbs were not detuned to my knowledge. I haven't noticed any difference in seat-of-the-pants feeling of power either.
If I recall correctly they didn't start de tuning them for the manual until the 6.7 came out with >660ftlbs.
Maybe my next truck will be one of the newer 850+ ft lbs Cummins trucks, then swap in a 13 speed Eaton Fuller Road Ranger. :-)
