11-07-2009, 10:24 AM
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#1 (permalink)
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Batman Junior
Join Date: Nov 2007
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Some engineer types discuss ecomodding options for a 2004 quad cab Dodge 2500 pickup
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Trading is not an option. I use this truck everyday and for what it is, it gets great gas milage. If there is room for improvement and an chance to learn something, then why not. I can do all the work myself. I am just looking for the best place to start.
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Starts out as a question about gearing, progresses from there to the full gamut...
FYI:
Eng-Tips forum: Transmission, Driveline, Hybrid Drive engineering - Gearing for gas milage
The thread links to EM (to the Dodge pickup aero shell study), which is how I noticed it.
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Today
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Other popular topics in this forum...
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11-07-2009, 12:40 PM
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#2 (permalink)
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Master EcoModder
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discuss
They covered the bases pretty good! Some of the recommendations would require a re-design of the truck,but much could be mods as we know could be DIY.
Thanks Darin!
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11-07-2009, 03:37 PM
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#3 (permalink)
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EcoModding Lurker
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Diesels are a great untapped resource for mileage gains. I just got 19.3 mpg on a 500 mile trip in my 89 Dodge, and it is running injectors that are 300 % larger than stock. Horsepower is 400 on fuel and 600 with nitrous. I am trying to get an overdrive in the works, as currently I am about 30% past the rpm for peak mileage. Keep in mind this is in a 5000 lb truck that is shaped like a brick.
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1982 Chevette diesel  36 hp at the wheels, best 59.6mpg.
1989 Dodge Diesel 972rwhp, 27mpg.
1971 Nova tubbed, solid cam 355 w/nitrous, really bad fuel economy.
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11-07-2009, 06:06 PM
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#4 (permalink)
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ooo ooo ooo ah ah ah
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I've visited that forum over the years. There are some good pro engineers on there, and somewhat less of the usual nonsense.  |
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11-09-2009, 12:56 AM
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#5 (permalink)
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38 time NHRA/IHRA Champ
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My oldest sons Hemi Ram Crew Cab 4x4 got a best of 21 mpg with him driving one way on a 240 mile trip....he was SHOCKED when I drove it back and got 23! It's the newer 09 that shuts down 1/2 the motor when cruising....he accelerates a bit harder and tends to stay at speed lomger when a stop is ahead.
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38 time NHRA/IHRA drag race champ
05 SRT4 / 12.17@117 mph on DOTs / 33.0 mpg
84 Horizon / 1760 lbs / 24 mpg
95 Neon / 46 mpg
2011 Prius / 62.1 without trying!
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11-09-2009, 01:21 AM
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#6 (permalink)
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ooo ooo ooo ah ah ah
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I have one helluva time busting 20 and that is with pretty careful driving.
Wish I could shut half my cylinders down at cruise... sometimes.
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11-09-2009, 11:24 PM
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#7 (permalink)
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Batman Junior
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Quote:
Originally Posted by Frank Lee
I've visited that forum over the years. There are some good pro engineers on there, and somewhat less of the usual nonsense. |
Me too. I almost signed up once or twice to ask a serious question, but chickened out. I'm not worthy!  |
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11-09-2009, 11:30 PM
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#8 (permalink)
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ooo ooo ooo ah ah ah
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No! You should go for it. You aren't going to pollute the place with nonsense, I know that.
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