please forgive the cummins question...
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Cargo Master
Joined: Jan 2001
Posts: 2,726
Likes: 5
From: Slatington, PA
please forgive the cummins question...
So I really hate having to ask this here, but I cant find info anywhere else, and everybody here seems to know a bit of this and that. My brothers got a 2005 dodge 2500 with the 5.9L. He keeps telling me it has an internal wastegate or something that lets off the excess boost through the exhaust when he shifts (loud woosh from the pipe when he lets off the gas and shifts). Is this true? It sounds like a neat idea, not to mention much easier on the turbo.
Elder User
Joined: Sep 2005
Posts: 695
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ya, the cummins has everything including an electric whoopie cushion.
just ask some of the experts around here. does everything better and is better in everyway than a PSD. PSD is good for nothing but the crap heap.
just ask some of the experts around here. does everything better and is better in everyway than a PSD. PSD is good for nothing but the crap heap.
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Cargo Master
Joined: Jan 2001
Posts: 2,726
Likes: 5
From: Slatington, PA
I only asked because everyone here seems so up on everything and usually knows whats going on. I'd never trade mine in for one.....just was wondering what kind of turbo it has
Lead Driver
Joined: Jul 2004
Posts: 6,951
Likes: 512
From: Foothills, CA
It's a standard turbo in '05. No Variable Vanes, Geometry or anything else. I'm sure it has some sort of wastegate, but not sure if it's integral to the turbo. I have a friend with an '05 CTD and for some reason on that year you can't get a factory jake brake -- so maybe that's why...
Former Vendor
Joined: Mar 2006
Posts: 662
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From: Surrey, BC
Originally Posted by twags6
So I really hate having to ask this here, but I cant find info anywhere else, and everybody here seems to know a bit of this and that. My brothers got a 2005 dodge 2500 with the 5.9L. He keeps telling me it has an internal wastegate or something that lets off the excess boost through the exhaust when he shifts (loud woosh from the pipe when he lets off the gas and shifts). Is this true? It sounds like a neat idea, not to mention much easier on the turbo.
It is definitly an internal wastegate, all OEM's will all be internal, what he is hearing is likely an off throttle turbo surge and it is harmful to the turbo. When he lefts off the throttle quickly the pressure ahead of the turbo is trying to force its way back through turbo spinning the wheel in the opposite direction. Not very common on a stock Dodge, is he running a chip?
I will PM you with a great Cummins Forum I monitor he can find answers for his rig.
Last edited by dave at BD Power; Oct 18, 2007 at 04:21 PM.
Former Vendor
Joined: Mar 2006
Posts: 662
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From: Surrey, BC
Okay I read your post again, I think he has a blow off valve on his truck, we offer them for the Ford Dodge and GM's
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