fuel miliage
#1
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fuel miliage
i have a 92 dodge 4x4 std cab long bed 3.55 gears auto with o.d 33=12.50-16.5 tires 4in bullydog exhaust smoke screw 1.5 turns diaphram 90 and full power screw 3/4 turn k/n air filter and i can only get 14.2 miles per gallon around town and including a 40 mile drive to school twice a week it gets the same milage as before i turned up the pump and it dose not smoke but only when i first get on it. dose this sound right or is something wrongplease help thanks
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you've got to remember the bigger tires through your speed off and therefor make your mileage look worse unless you recalibrated your speedometer. Probably isn't a big dif but it might be 1 or 2 MPG's I've been getting about 20 on the highway in this weather running right around 70mph in a 2wd.
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#8
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Agreeing with "user name", if the speedo gear is for a, say, 30 in. tall tire, and you are running 33 inches of tire you increased the diameter by 10% which also increases the circumference by 10%. Since the circumference is the actual distance you travel down the road every time the wheel turns one time, this will have a 10% perceived difference in mileage. In plain language, if the odometer is used to calculate mileage, and that calculation comes out to 15 mpg, you are actually gettting 15 + 1.5 = 16.5 mpg. That might not be as great as you want, but its pretty darn good for a 7000 lb. full-sized rig. Heck, I don't think my wife's minivan gets that in town.
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I just got my 92 D250 two days ago. I really don't know much about these beasts but I'm not that impressed with the miliage I'm getting so far. Some of the guys I work with were telling me that I have to get that stock intake and turbo and exhaust out of there if I wanted to see the miliage these are famous for. They talked about a cold air intake, a 50mm turbo, and a 4 or 5 inch turbo back ehaust. What do yall think. I'm hoping to make as close to 20 mpg as I can. It's a 92 D250 4x4 LWB. minus a few gauges it's bone stock.
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I just got my 92 D250 two days ago. I really don't know much about these beasts but I'm not that impressed with the miliage I'm getting so far. Some of the guys I work with were telling me that I have to get that stock intake and turbo and exhaust out of there if I wanted to see the miliage these are famous for. They talked about a cold air intake, a 50mm turbo, and a 4 or 5 inch turbo back ehaust. What do yall think. I'm hoping to make as close to 20 mpg as I can. It's a 92 D250 4x4 LWB. minus a few gauges it's bone stock.
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I've got the 5 speed. 60mm huh? I think it has the HX35 on there. I honestly don't know if that's good or not. I think it's stock. Cute little thing. My buddy know's a bit about the Cummins. He's got a 98.5 that he's built a decent truck out of. I know I was stuck in 3' deep mud hole in my 79 chevy and he pulled me out like i was on hard ball. I really wanna use this truck as a everyday driver. I've already got a play toy.
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It very well maybe. I know it says Holset on the compressor side. so that should help a bit huh? 60mm turbo, 5in exhaust, cold air intake, and a few turns of a couple screws on the injection pump?