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Old 05-29-2013, 01:50 PM   #1
VettezukiVettezuki is offline
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Default Improve mpg of Cummins

My mom has a 98 Dodge with the Cummins. It's bone stock. This summer it's going to be going cross country and back. Are there any relatively easy/cheap ways to improve mpg over stock other than just keep your foot out of it? Guy mentioned something about tuning the fuel system that gives more power and mpg, but I didn't get how that would work.
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Old 05-29-2013, 02:55 PM   #2
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http://dodgeram.org/tech/dsl/more_power/Power_ve.htm
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Old 05-29-2013, 10:45 PM   #3
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Chip it, You can get way more power and way more MPG
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Old 05-29-2013, 11:36 PM   #4
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Bullydog and Banks make tuners that you can change the tune with a little screen that you mount inside the cab.
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Old 05-30-2013, 12:45 AM   #5
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It's mpg, not power I'm after really because that trans is a weak link (much more than the Allison in the GM trucks). I'll check the tuner products and see if any can be had cheap enough to make sense. Trip is basically to Milwaukee and back.
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Old 05-30-2013, 04:14 AM   #6
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Quote:
Originally Posted by Damian View Post
Bullydog and Banks make tuners that you can change the tune with a little screen that you mount inside the cab.
Fuck both of those tuners. If you do get a tune don't cheap out with a canned boxed piece of shit and go to a reputable tuner.
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Forget about winning and losing; forget about pride and pain. Let your opponent graze your skin and you smash into his flesh; let him smash into your flesh and you fracture his bones; let him fracture your bones and you take his life. Do not be concerned with escaping safely — lay your life before him

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Old 05-30-2013, 04:15 AM   #7
Shaolin CraneShaolin Crane is offline
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Quote:
Originally Posted by Vettezuki View Post
It's mpg, not power I'm after really because that trans is a weak link (much more than the Allison in the GM trucks). I'll check the tuner products and see if any can be had cheap enough to make sense. Trip is basically to Milwaukee and back.
Generally anything that increases power on a diesel increases mileage. largly due to injection timing and whatnot. Heavy foot it and you'll get shitty mileage, light foot it and it gets better.
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Originally Posted by Bruce Lee
Forget about winning and losing; forget about pride and pain. Let your opponent graze your skin and you smash into his flesh; let him smash into your flesh and you fracture his bones; let him fracture your bones and you take his life. Do not be concerned with escaping safely — lay your life before him

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Old 05-30-2013, 11:36 AM   #8
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Quote:
Originally Posted by Shaolin Crane View Post
Fuck both of those tuners. If you do get a tune don't cheap out with a canned boxed piece of shit and go to a reputable tuner.
Why? Both make really cool setups for him. Both units can go from fuel economy to performance settings really quickly.
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Old 05-30-2013, 03:31 PM   #9
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Quote:
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Why? Both make really cool setups for him. Both units can go from fuel economy to performance settings really quickly.
Because they're all flash and aren't worth the plastic they're made with. Better tunes from reputable tuners than the generic shit that simply raises the rev limiter and fuel amount. My dads Banks tuned truck can't touch mine with a 3 truck head start and he's got "better" parts.
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Quote:
Originally Posted by Bruce Lee
Forget about winning and losing; forget about pride and pain. Let your opponent graze your skin and you smash into his flesh; let him smash into your flesh and you fracture his bones; let him fracture your bones and you take his life. Do not be concerned with escaping safely — lay your life before him

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Old 05-30-2013, 03:37 PM   #10
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Quote:
Originally Posted by Shaolin Crane View Post


Because they're all flash and aren't worth the plastic they're made with. Better tunes from reputable tuners than the generic shit that simply raises the rev limiter and fuel amount. My dads Banks tuned truck can't touch mine with a 3 truck head start and he's got "better" parts.
You mean your truck with a broken motor?
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