chvycmnslvr68
Full Access Member
Not to get political here, but it seems to me that cars in the 70's and 80's were way more fuel efficient, and I think it is not the oil companies but rather the EPA dictating what fuel mileage is gonna be, but that is all I will say about that I def need to get a OD gear in this truck for it to be happy going down the highway, and I think a NV4500 if I can find one or the ranger gear splitter since I already have almost everything for the swap to the sm465, the $1400 the ranger splitter costs will be taken care of quickly with the fuel savings. I have heard the parasitic drag for the TH400 is 46 HP's, that is unacceptable in my book. The parasitic drag for a manual tranny, 0 HP that i know of.
I am not sure what it is either but there is always some drag to turn the bearings and gears but not anything like turning a HYD pump .... you can fine a NV4500 from a mid '90's Chevy for a decent price ... I just found a '95 Chevy complete with one for 500 on CL ... juist have look around .... the chevy's just have a slightly smaller input shaft and Main drive gear gear than the Cummins NV4500 comes out with ... you can upgrade them for around 300 in parts and another 100 to install the Idler gear nut lock upgrade ... either way you go you will have to mocify your drivelines ... if you could find a nv4500 and then put the ranger gear splitter in front of it you would have a double O/D and realy git the MPG's up where they should be in the first place ...
Have you ever experimented with HYD .. you will be realy impressed with the increase in MPG's with just a little HYD injected into the intake ... with the 5.9 it takes about 6-7 liters a minute production from a generator to quadruple your existing MPG numbers .. so take my 33-34 OO/D MPG and X4 and see what you get .. I have done this in real life driving ...
There are some real skeptics on this site that say that it is not possible... but it is ... I went 306 miles on 2.4 gals of diesel .... then my plastic Hyd generator housing melted ... when I put in the 2.4 Gals I was thinking that my fuel gauge had stopped working cuz it stayed pegged over the full mark ... and I squeezed in as much as I could possibly get in .. which I did not do on the initial fill up at the starto f the trip .. so in actuality I probbly got a little better than what the numbers come out to from the info given ... and this from the BIG BLUE 4X4 DUALLY in my sig pic .... I plan on putting the GV O/D on my 92 Toyota Four Runner 5-speed .... It has a 2.2 liter Isuzu turbo diesel in it and gets right at 50 mpg now so with the OO/D and Hyd gen I should be able to push out around 200-250 MPG from it ..
PS:... 1-1.5 lpm of Hyd on a '01 dodge cummins took the MPG numbers from 22 - 27... and 3LPM pushed it to 36 mpg ... these numbers are on a 400 mile trip through some flat and some mountain terrain .. about half and half .... and driving at moderate speeds (55-60) .. and these test runs were done on multiple trips over the same route...
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