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Diesel Trucks! Straight piping=better mpg?This is a discussion on Straight piping=better mpg? within the Diesel Trucks! forums, part of the TMC TRUCK & SUV category! |
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12-08-2010, 06:26 PM
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Straight piping=better mpg?
Ok, so i've been seeing folk on other sites say you can get better mpg's with straight piping a diesel. Anyone actually know this true for a fact? I already wanted to straight pipe it, but would love a couple extra miles a gallon on top
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2003 F150 2wd - 5.5" lift, 305/70R16 Mickey Thompson Baja ATZ's, true dual straights, much more.... 2001 Dodge Ram 2500 4X4 - 24 Valve Cummins Diesel, blocks in the rear, 33" General A/T's 
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12-08-2010, 07:15 PM
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I suppose removing the back pressure created by the muffler might add a TINY bit of better fuel economy, but I can't see how it would add even 1 mpg. Sounds like people who want a loud straight pipe justifying their mod to me.
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12-08-2010, 07:23 PM
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may see one (max) mpg if that was the only change. its best paired with a programmer to get full effect.
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12-08-2010, 08:22 PM
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Yea, haha, i'm guilty of doing stuff to my F-150 and justifying it with a reason lol. And good, i'm already preparing to buy a programmer. Just still stuck and confused in the huge market of them. I have no idea which is best
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2003 F150 2wd - 5.5" lift, 305/70R16 Mickey Thompson Baja ATZ's, true dual straights, much more.... 2001 Dodge Ram 2500 4X4 - 24 Valve Cummins Diesel, blocks in the rear, 33" General A/T's
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12-08-2010, 08:33 PM
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The Cummins actually "likes" a little back pressure to run right. You see them all the time with the 5" monster exhausts or 6" stacks and they are dogs off the line. From what I have heard, the turbos don't spool as quick if there is no back pressure, but I don't know that for sure.
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2000 Dodge Ram 2500 Quad Cab 4x4 SLT.......Weekend Warrior. Gun control is not about guns, it's about control.
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12-08-2010, 08:35 PM
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Well, if you had a DPF I would say yes, for sure. But with your 24V I would say it would be minimal at most. But boy I sure love the sight of a straight piped cummins rollin some coal
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 1996 GMC C2500
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12-08-2010, 08:35 PM
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Hmm...interesting. Thanks man, mine already doesn't spool up terribly fast as it is
 so i don't wanna do anything that'll make it even worse
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2003 F150 2wd - 5.5" lift, 305/70R16 Mickey Thompson Baja ATZ's, true dual straights, much more.... 2001 Dodge Ram 2500 4X4 - 24 Valve Cummins Diesel, blocks in the rear, 33" General A/T's
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12-08-2010, 08:36 PM
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Quote:
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2003 F150 2wd - 5.5" lift, 305/70R16 Mickey Thompson Baja ATZ's, true dual straights, much more.... 2001 Dodge Ram 2500 4X4 - 24 Valve Cummins Diesel, blocks in the rear, 33" General A/T's
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12-08-2010, 08:46 PM
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You DieselHeads are strange people!
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12-08-2010, 08:48 PM
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Quote:
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2003 F150 2wd - 5.5" lift, 305/70R16 Mickey Thompson Baja ATZ's, true dual straights, much more.... 2001 Dodge Ram 2500 4X4 - 24 Valve Cummins Diesel, blocks in the rear, 33" General A/T's
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