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TP from Cntl PA · 10-02-2005, 02:31 PM

Haven't ever drove a truck with a GV in it, but I know my homemade OD setup greatly increase mpg with the Cummins. It lets us control what rpms we want to run at so we can utilize the torque curve of the engine to maximize efficiency.

Granted I am talking a manual system, but I imagine just like farm tractors, you loose efficiency with the auto and maybe the GV does make it worse, just like a straight gear drive tractor vs a powershift, or even worse, a Hydro.

10-02-2005, 02:31 PM	#10
TP from Cntl PA Registered User Join Date: Apr 2003 Location: Central PA....In the Berg of Nisbet Posts: 790	Haven't ever drove a truck with a GV in it, but I know my homemade OD setup greatly increase mpg with the Cummins. It lets us control what rpms we want to run at so we can utilize the torque curve of the engine to maximize efficiency. Granted I am talking a manual system, but I imagine just like farm tractors, you loose efficiency with the auto and maybe the GV does make it worse, just like a straight gear drive tractor vs a powershift, or even worse, a Hydro. __________________ '72 K-20 EFI'ed 250 Inline/4spd stake body, Farm Truck '71 C-20 Cummins Diesel Powered, In storage thanks to $5.00 diesel! '69 3500 GMC 305V-6/4spd, Still under reconstruction.......... Inlines Rule! 6 soldiers standing is better than 8 laying down!!!!!!!!