5.9 Liter CR Dodge Cummins 03-07 Discussion of 5.9 Liter Dodge Cummins Diesels with Common Rail Injection

converter or not

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Old Apr 2, 2009 | 06:49 PM
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richie waddell's Avatar
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Default converter or not

come on guys let me know should i keep my catalatyic converter or not i have upgraded to a 4' banks monster exhaust and my gas milage has went to the pits will getting rid of the converter help
 
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Old Apr 2, 2009 | 09:25 PM
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Has your milage gone down because you like to hear that pipe sing?

That was my problem.
 
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Old Apr 2, 2009 | 09:46 PM
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know it has nothing to do with my lead foot my wife can drive it she is alot easier on it than i am and it is still not as good as it was before
 
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Old Apr 2, 2009 | 09:48 PM
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Mileage might come up, depending how plugged the converter is.
 
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Old Apr 2, 2009 | 10:03 PM
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am i better off just gutting what i got or buying a delete pipe
 
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Old Apr 2, 2009 | 10:12 PM
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Keep the converter. It will help hold some back pressure. Which is needed with a stock truck.
 
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Old Apr 3, 2009 | 11:17 AM
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Originally Posted by richie waddell
come on guys let me know should i keep my catalatyic converter or not i have upgraded to a 4' banks monster exhaust and my gas milage has went to the pits will getting rid of the converter help
You didn't upgrade the exhaust as the stocker was laready 4". If your mileage went down something else happened to cause it.

A TC will help some but it won't cure other problems.
 
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Old Apr 4, 2009 | 08:52 AM
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any suggestions on what might of caused my milage to go down
 
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Old Apr 9, 2009 | 03:34 PM
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My converter is MIA. I don't like the thought of the converter getting sooted up & causing problems so I deleted. I installed a 5" turbo back, lost some bottom end but mileage stayed the same. Plugged in a little Quadzilla module & got my bottom end back. I agree with RSWORDS; my mileage was worse right after I put my system on cuz I could actually hear it & stayed in it a little more.
You got a BHAF? Since your exhaust system is slightly better flowing you'll need a little more air coming in; that might help your mileage a little.

---AutoMerged DoublePost---

O.k., I'm stupid. I didn't read enough. I finally looked at your sig. So you have BHAF & intake so that must not be it. How much did your mileage drop?
 

Last edited by MegaMan; Apr 9, 2009 at 03:34 PM. Reason: Automerged Doublepost
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Old Apr 12, 2009 | 09:41 PM
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a couple of miles to the gallon according to the read out on the overhead computer
 
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