Blown Turbo...
Senior User
Joined: Mar 2006
Posts: 210
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From: Kentucky
In theory, exhaust would probably be best to do first, or at the same time.
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Freshman User
Joined: Dec 2011
Posts: 34
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ok fellas calm down I did not list all the little mods on the truck because I was primairly concerned about the turbo... I have a K&N diesel cone filter on it right now <---(going to upgrade soon) and the exaust is 4" turbo back straight piped. The chip (not my idea) was a christmas present from the wife and parents... it is a Ts 6 position from Advanced Diesel; stock, hi idle, 50, 75, 100, and 140. due to my lack of a good gague setup I never! run the truck on 140 and 100 only for short times when I want to smoke a cummins or duramax. I am soon to remidy that problem... probably do a CST Insight with etg while I have the turbo off. Now back to the turbo... It is a Garrett it has 1.00 A/R stamped on the housing. I have it off the truck now and am about to see what I broke. Pictures will be posted asap. Now how does everyone feel about the banks bighead waste gate... is it worth the upgrade from the one on the Garrett? Or if I can rebuild this turbo should I order a non wastgated housing. This truck is not a daily driver but I do drive it alot on weekends hauling firewood, my bobcat and the boat... Thanks for the input!
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Freshman User
Joined: Dec 2011
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Well it seems i cant post pics... but i did pull the turbo apart and the shaft was broke in half right behind the turbine wheel. soo i ordered a new center cariage from clay. and now i am waiting on yellow tape... i am still thinking about a banks bighead wastegate what are the opinions out there about it? am i better off to stick with the stocker on the garrett and just adjust the rod?
Elder User
Joined: Jun 2007
Posts: 705
Likes: 1
From: Sandia Park, NM
ok fellas calm down I did not list all the little mods on the truck because I was primairly concerned about the turbo... I have a K&N diesel cone filter on it right now <---(going to upgrade soon) and the exaust is 4" turbo back straight piped. The chip (not my idea) was a christmas present from the wife and parents... it is a Ts 6 position from Advanced Diesel; stock, hi idle, 50, 75, 100, and 140. due to my lack of a good gague setup I never! run the truck on 140 and 100 only for short times when I want to smoke a cummins or duramax. I am soon to remidy that problem... probably do a CST Insight with etg while I have the turbo off. Now back to the turbo... It is a Garrett it has 1.00 A/R stamped on the housing. I have it off the truck now and am about to see what I broke. Pictures will be posted asap. Now how does everyone feel about the banks bighead waste gate... is it worth the upgrade from the one on the Garrett? Or if I can rebuild this turbo should I order a non wastgated housing. This truck is not a daily driver but I do drive it alot on weekends hauling firewood, my bobcat and the boat... Thanks for the input!
Elder User
Joined: Jun 2007
Posts: 705
Likes: 1
From: Sandia Park, NM
Well it seems i cant post pics... but i did pull the turbo apart and the shaft was broke in half right behind the turbine wheel. soo i ordered a new center cariage from clay. and now i am waiting on yellow tape... i am still thinking about a banks bighead wastegate what are the opinions out there about it? am i better off to stick with the stocker on the garrett and just adjust the rod?
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Freshman User
Joined: Dec 2011
Posts: 34
Likes: 0
Yeah it is basically everything that broke apart on mine all assembled heres a link
Riffraff Diesel: Garrett GTP-38 Center Cartridge
Thanks for the opnion on the big head i will just mod the one i have
Riffraff Diesel: Garrett GTP-38 Center Cartridge
Thanks for the opnion on the big head i will just mod the one i have
Elder User
Joined: Jun 2007
Posts: 705
Likes: 1
From: Sandia Park, NM
Yeah it is basically everything that broke apart on mine all assembled heres a link
Riffraff Diesel: Garrett GTP-38 Center Cartridge
Thanks for the opnion on the big head i will just mod the one i have
Riffraff Diesel: Garrett GTP-38 Center Cartridge
Thanks for the opnion on the big head i will just mod the one i have
I would throw another $100 or so on what you would have spent on the big head and get the bigger turbine housing. I'd think you would want to go back to the stocker compressor wheel though since there would be no need to lose airflow to defeat surge with the bigger turbine housing. Not sure if that makes sense, someone will correct me if I'm wrong.
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Freshman User
Joined: Dec 2011
Posts: 34
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Well heres an update I got the new parts from Clay ( THANKS!!!)
and it all went together without a hitch. While I was at it I ordered the 6637 kit with the "Big Boost" filter
. I also picked up an Edge Insight Monitor and EGT probe
SOOO heres the question I have no clue how much boost I was running before I broke that center shaft and sent my turbine sideways into the housing
However after smoothing out the nicked up spots with a dremmel and a cylinder hone. my boost seems to feel lower... it could have to do with the fact that I have numbers to look at now 
How much boost should
I be seeing? It is a Garrett 38R with a 1.00 A/R intake and .84 A/R turbine side. There are no leaks as far as I can tell on any intake boots. I made a pressure tester that I stumbled on in the forum and sprayed them down with soapy water. I also hear a "blow off" of air when I go from high boost 8-12psi to lower boost 1-4 psi as in when the truck shifts or I let off of it. It is odd I have never heard it before Is that the 6637 filter letting more noise out?
Too many new things at once now I have to troubleshoot when I am not even sure if I have a problem
Any help you guys can throw my way would really be great!
and it all went together without a hitch. While I was at it I ordered the 6637 kit with the "Big Boost" filter. I also picked up an Edge Insight Monitor and EGT probe SOOO heres the question I have no clue how much boost I was running before I broke that center shaft and sent my turbine sideways into the housing
However after smoothing out the nicked up spots with a dremmel and a cylinder hone. my boost seems to feel lower... it could have to do with the fact that I have numbers to look at now How much boost shouldI be seeing? It is a Garrett 38R with a 1.00 A/R intake and .84 A/R turbine side. There are no leaks as far as I can tell on any intake boots. I made a pressure tester that I stumbled on in the forum and sprayed them down with soapy water. I also hear a "blow off" of air when I go from high boost 8-12psi to lower boost 1-4 psi as in when the truck shifts or I let off of it. It is odd I have never heard it before Is that the 6637 filter letting more noise out?
Too many new things at once now I have to troubleshoot when I am not even sure if I have a problem
Any help you guys can throw my way would really be great!
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Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
The noise you are hearing is probably normal turbo stall
Here's Trey's video of stall.
<iframe width="560" height="315" src="http://www.youtube.com/embed/Ar48OSJdGB8" frameborder="0" allowfullscreen></iframe>
I'm pretty sure you meant a Garrett GTP38, but I could be wrong you could have put smaller housings on them I guess.
How are you monitoring Boost through the map sensor? Boost seems a little low, especially if you have a 38R...Have you tried to see how much boost you get with the red line on the wastegate disconnected to see if you need some adjustment?
Here's Trey's video of stall.
<iframe width="560" height="315" src="http://www.youtube.com/embed/Ar48OSJdGB8" frameborder="0" allowfullscreen></iframe>
I'm pretty sure you meant a Garrett GTP38, but I could be wrong you could have put smaller housings on them I guess.
How are you monitoring Boost through the map sensor? Boost seems a little low, especially if you have a 38R...Have you tried to see how much boost you get with the red line on the wastegate disconnected to see if you need some adjustment?
Cargo Master
Joined: May 2010
Posts: 3,047
Likes: 10
From: Snohomish, WA
Are you only getting 12 psi? Stock trucks will see about 16 psi. Tuned trucks can see 24-30 psi depending on what they are doing. Is your wastegate adjusted where it is preloaded when you hooked it up?
You will hear the wastegate open much more now. That is the sound you are hearing and yes, the 6637 is allowing you to hear it more now.
You will hear the wastegate open much more now. That is the sound you are hearing and yes, the 6637 is allowing you to hear it more now.
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Freshman User
Joined: Dec 2011
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That is the sound I am hearing. yes you are right it is a garrett GTP 38. I am reading boost off the edge and I believe it pulls it from the map sensor. I adjusted the wastegate in all the way so it would not open so soon before I put the turbo back on. i also did a test runn with the vacume line un hooked there was no change. I also gutted the EBPV and pluged the hole. I am running a ts performance 6 position and on 100hp @2700 rpm I am seeing 12 or 15 psi
Last edited by Ken1098; Mar 6, 2012 at 09:50 PM. Reason: im forgetful
Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
Just a stock TS chip from TS or who's tuning? With a chip WOT on 100HP setting in my truck stock sticks I will see 26~psi pretty quickly, thats with a mechanical gauge though.
You probably cannot use the reading from the MAP sensor depending on what your tuner might have done.
You probably cannot use the reading from the MAP sensor depending on what your tuner might have done.
Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
I don't know for sure, I know my MAP reading on SnapOn scanner is still consistent, I would call TS if you are certain you don't have any leaks, did you check up pipes too? Are you sure you got the baby's butt aligned right, as well as the spider?
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Freshman User
Joined: Dec 2011
Posts: 34
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honestly no! I am not sure it is all lined up right it looks exactaly the way it came off but I may pull all the clamps and try again I left everything lose until I got all the clamps on then tightened all the bolts up so it SHOULD be right.