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Old Jan 9, 2008 | 06:50 PM
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From: frostburg md
Question Stock turbo

I was wondering how to tell the diff in a stock turbo and a aftermarket.
 
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Old Jan 9, 2008 | 07:17 PM
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Stock turbo is a Garrett TP-38, Aftermarket Garrett is a GTP-38r.... The 38r has a 4" ported intake housing and a 1.00 exhaust housing.
 
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Old Jan 9, 2008 | 07:26 PM
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From: frostburg md
This is my first deisel so Im kind of new to this so if you could break it down a little better please.
 
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Old Jan 9, 2008 | 07:30 PM
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Stock turbo has a smaller exhaust housing, smaller intake housing... Bushing center section...

Aftermarket has a 4" ported intake housing, larger exhaust housing and a Ball Bearing center section...

What exactly are you looking for?
 
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Old Jan 9, 2008 | 08:31 PM
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From: frostburg md
I bought a 2001 f350 used I am the third owner.The guy that I bought it off of was the second owner and was clueless about the truck.The first owner had put some extras on the truck. I was just wondering if the turbo was one of them.I am running 25+ very easy i have to let out of it.
 
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Old Jan 9, 2008 | 08:44 PM
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Well, you could have a van turbo, a Ballbuster/phatshaft type, or one of the ball bearing units not to mention a Holset or H2E. Why not post a pic of your setup. Bet someone can identify it. Might even be a stocker with a good tune.
 
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Old Jan 10, 2008 | 01:48 AM
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If it has a 3" intake tube 99% its a stock turbo... If it has a 3" and a 1.15 housing (exhaust) then its a van turbo... Very doubtful that it has an aftermarket turbo...
 
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Old Jan 10, 2008 | 07:14 AM
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From: frostburg md
I will try to post a pic hear later I will have to read up on it
 
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Old Jan 10, 2008 | 07:56 AM
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What other mods do you have on the truck? Is there AM/ exhaust? Do you have a different intake then stock? Is there some kind of chip or programer on your truck?

Making 25# of boost is not very hard if you have a few mods.
 
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Old Jan 10, 2008 | 09:42 AM
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From: frostburg md
my truck has a 3.50 in exhaust, bully dog 6pos chip and a ram air type intake the exhaust i have been told is stock but it has been cut right behind the cab and is turned down it also think it has a muffler but one person told me it was a resonator what ever that is.
 
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Old Jan 12, 2008 | 07:52 AM
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From: frostburg md
I got some pic in my gallery of the turbo.Can you put pic in your thread if so can somebody explane or tell me where to find it.
 
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Old Jan 12, 2008 | 08:03 AM
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Looks like stock turbo to me. I don't know about the pic thing, but I will work on that this weekend. I won't stop till I get it.

Good luck
 
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Old Jan 12, 2008 | 08:13 AM
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thats a stock turbo..but there could be a wicked wheel in there..you need to pull the air intake tube to see the wheel..if you do that..see if the wheel has any chips or dusting..grab the nut and try to feel any play up and down side to side..very little play is ok..then pull in and out for any play..should be no play at all there..
 
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Old Jan 12, 2008 | 08:31 AM
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From: frostburg md
How can you tell the diff in wheels and there is some small chips on the wheel and some play side to side but none in and out..
 
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Old Jan 12, 2008 | 08:40 AM
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the turbo on the left is the stock 99.5-03 turbo..it has the wicked wheel in it..every other fin is shorter then the other..on the stock wheel..all the fins are the same size...i have pictures of the stock wheel in my exploded view link in my sig..dont get confused..i messed up and took pictures of the stock wheel sitting on a Wicked wheel box...

 

Last edited by ron's power stoke; Jan 12, 2008 at 08:43 AM.
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