12 Valve 2nd Gen Dodge Cummins 94-98Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps
Im looking into getting a 12 Valve. it will have stock suspension and will be 4 wheel drive
say i get a regular cab, regular bed, manuel tranny, strait pipe exuast(thinkin 4 or 5 Inch),
BHAF, aftermarket intake manifold, maybe say 40HP injectors because i ... JOIN NOW TO REMOVE TRACER
With the 35's, I get about 16 around town, 20-22 on the highway, and thats a 4x4 with a Ranch Hand bumper. Just got 23.2 round trip going to Syracuse and back, I was real happy. I also have a clutch fan, which helps a lot, I only turn it on if I'm idling for a while or if I'm in bad traffic.
With what i've done to my truck i get around 17/19 city,and around 22/24 on the highway unless i'm really romping on the go fast pedal.Another thing you can do if you get the truck is put some fuel conditioner in the tank every other fillup.I've noticed that also helps my fuel economy.
I have a 1997 Cummins 12v in a 1997 Ford F-350 4x4 with a 6 speed manual transmission. I went from getting 9-12 MPG with the 460 V-8 to getting 20-24 MPG with the 12v.
I pull a custom made 5th wheel (48' Long... 24' with bunks for a boat and 24' up front with a custom made Lance Camper to fit the style of the trailer). I can pull the fifth wheel fully loaded (about 10,000 pounds gross) 65-70 MPH and get about 19-20 MPG.
Before with the 460 I got 6 MPG and Could not even pull the dang thing.
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