What did I get myself into... 98 Ram 5.9L ecomodding
So I recently found myself stuck with my full size truck and having to drive 20 miles out to school 4 days a week. I considered purchasing a smaller truck, a economy car, or even a motorcycle but honestly I cant go more than a week with out needing a 8' bed or having to tow something. I also thought about buying a second vehicle but after doing the math it would be cheaper to just keep my truck rather than add a car payment, more insurance, +that cars gas. Long story short I've begun reading up on improving my FE and have started modding and driving accordingly.
So heres what I've got to work with... http://i122.photobucket.com/albums/o...o/100_3000.jpg 1996 Dodge Ram SLT 5.9L V8 2WD Auto, before ecomodding I averaged about 13.5 mpg. My long term goal is to be able to hit 20 mpg :thumbup:. This tank I began driving more conservatively and experimenting with different hypermiling techniques to the extent that an auto can. I also began trying to areo up my 3 ton brick... Heres pics of what I've got so far. Grill block and passenger mirror delete. http://i122.photobucket.com/albums/o...o/100_2995.jpg http://i122.photobucket.com/albums/o...o/100_2999.jpg http://i122.photobucket.com/albums/o...o/100_2993.jpg http://i122.photobucket.com/albums/o...o/100_2997.jpg On the front, I blocked the top sections of the grill will with sheet aluminum and the bumper with clear tape. The tape's only temporary until I can think of a cleaner way to block it. I also used copper pipe insulation to block the gap between the hood and bumper as well as between the headlights. The mirror cover is another piece of sheet aluminum and I am going to paint it to match the truck tomorrow. This is just a start to my modifications. I also I plan on doing a full belly pan, adding a tonneau cover, replacing drivers mirror with something more areo, removing antenna, switching to an electric fan and of course getting a scanguage. I only have 50 miles on this tank (30 gal :eek:) so its too soon to tell how much this is helping but I'm hoping to be at about 17mpg+. |
Good luck with it!! My brother has caught the bug from me on his 93 F150, straight 6. He has it to almost 20, 15 with a trailer. So if he can get that you should be fine. Scangauge would be the very first thing I would purchase for that truck. It will tell you instantly and keep numbers as high as possible. Look up an Aerocap on here. Or Big Dave he has a F250-350 he gets high numbers with. And Welcome to EM, you will become addicted.
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Longer air dam?
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I Pulled off 21.7 MPG's with an F250 (V8, dunno displacement) from work on a 200 mile trip recently.
Truck had alot of weight from tools in it too, it literally coasted forever. I'm wondering if more weight = better mileage in more powerful vehicles cause it makes them hold their momentum/coast longer. 207 miles on 9.5 gal or something like that |
Slowing down will be your friend in that monster. I'm sure if you keep to the speed limit or just under you should hit your numbers with no issues.
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Be careful towing with the grill blocked, make sure you keep temp on your scangauge if your towing so you don't overheat the engine/tranny
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Check out this thread on bed covers:
http://ecomodder.com/forum/showthrea...ckup-3996.html Air up those tires. Remove the step bars. Lund makes a wiper cowl that might help a little. Maybe. I'm not sure about that lip at the top. What do other modders think? http://www.autotrucktoys.com/ram/ima...owcowlmain.jpg I think I'd trim the lip off. |
Thanks for the advice guys.
As for towing, the truck has a tow package which includes a tranny temp sensor and warning lights. Plus the block is removeable so I can just yank it off if there are any cooling issues. So far so good though in a 95+ midwest summer. As for the tires, they are at 36psi and their max is 35. How far over the max can you take tires like these? Do you really think removing the step bars would make a noticeable difference? There hidden behind the front tires and are pretty aerodynamic. I dont need them to get into the truck but I do kinda like how they look. |
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More weight also increases rolling friction, also regardless of the vehicle's power. Unless you go down hill more than you go up (not possible on a round trip), more weight always means poorer FE. |
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I adhere to the tire manufacturer's rating - if your sidewall says 35, that's where I would quit. I have 44 on mine. The ride is a bit jitterier than before, but it pays at the pump. Since it's a 2x, you can lower it a bit without damaging your load capacity, but check how it affects your towing before proceeding. Barring that, there's always the fender skirts and like the other guys said, more air dam. I think if you add insulation to your exhaust system you could put a bellypan under the vast majority of your truck - cover everything except the driveshaft. A tonneau would help you, but a kammback cap like Aerohead's would be even better. I've really got to build one. I bet I'd break 40 if I had one. Big Dave drives a F-350 and is racking up a consistent 26mpg+, and he's got more engine and generally just heavier components than your ride - if he can get that, there's no reason at all why you couldn't break into the 20's. As for the steps, they're not as sleek as they look - they're adding a lot of turbulence you don't need. Pop them off and add rocker extensions to fair out the turbulent flow coming off the backs of your wheels, and keep excess air from drifting under your rig to add more drag. And hey, it ain't my site, but welcome! |
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