GAry, lets dyno my truck then swap on your extra moose pump to make sure it works and dyno it again.
My final drive ratio is 1.96 in double overdrive running 3.55 gears. Rpm was around 1700.....
Was really having a hard time rationalizing the cost of the Moose products, one can have a 6bt for the same money....
But it sounds like some satisfied customers out there...
Bringing this back from the dead, can we get a round of hands from those that have them, that can validate mpg gains?
Hang on a minute here. What I did with mine was actually before the moose pump was installed. What happened was a 200 mile round trip with 100 miles in one direction and another 100 in the other direction along the exact same route. I reached about 25 MPG in only one direction, but dropped to 19 in the other. This is how I try to do all my calculations instead of just ommiting the lower number by cherry picking. So my average that day worked out to about 22.5 MPG while cruising empty at 70 MPH.
More recently I broke 18 MPG for the first time while towing thanks to the new pump and some very gentlie driving between 55-60 MPH. Previous averages peaked at 16-17 MPG.
I have not been able to break 25 MPG averaged for both directions yet, but in theory I think it might be possible.
Hmm... I resisted chimming in on this, but I do feel that we need to point out one obvious thing. If you buy a used Cummins, it does NOT come with a new rebuilt pump, or new injectors. A rebuilt pump for a Cummins will run you $2500! I don't know what injectors cost, but if we are going to talk finances, lets be realistic. Yea, you can go out and buy a whole Dodge truck with a Cummins IN it for $1600-$1800 (approximate price of Moose Pump and Moose Misters), but how much more money are you going to have to dump into it to make it reliable? I don't think the monetary comparision you are making has a sound basis for comparison. Price out a Cummins with a new pump and injectors on it, if you want to look at it properly.