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38R to T4 364.5 SXE Conversion

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Old 07-04-2017, 09:25 PM
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38R to T4 364.5 SXE Conversion

Decided to swap from the 38R to the 364.5SXE Borg Warner turbo using the Carson Stauffer Diesel T4 kit. Looking to match the injectors a bit better.

Rec'd the turbo recently, here are some pics of it. I'll follow once the CSD kit arrives and I confirm I have all the parts required to complete the swap.

I believe I'll need to remove the down pipe by cutting or disassembling it to fit the new pipe and then go to the exhaust shop to make the connection, but will see unless someone on here has completed this sort of work with the CSD kit before.








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Old 07-04-2017, 09:54 PM
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That sure is a nice looking turbo... I would go this route if the price was not so steep...

Do you feel the 38R does not meet the demands of the 175/80 injectors?

I look forward to hearing the results.
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Old 07-05-2017, 12:20 PM
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Been there, done that! You'll love the 364.5 with those 175s. Just remember to put the new down pipe in before the up pipes. You won't be able to get it in after. Amazon sells different lengths of 4" flex and clamps to adapt the exhaust. When I bought my kit, I Carson gave me the option of keeping the ccv intact (I can't stand the smell of a deleted ccv). The hardest part is getting the oil return line threaded with the turbo in. Feel free to Pm me if you have any questions.
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Old 07-05-2017, 08:11 PM
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I think the 175's are a bit much for the 38R. I've got about 13K miles with the 38R and it's been a good combination but I've got some pretty good testimonials about this SXE turbo and this size injector so... going for it.

Thanks for that tip The Brad, if you think of anything else, let me know. I'm not sure how I'll approach the DP meaning just hang it in there to install the turbo and then go to an exhaust shop or try to mate it myself. Depends on how close it is I suppose. I also route the CCV to the intake, tried it routed outside and did not like it at all. I've adapted a 4" tube by welding an AN fitting to it and route to that so I may be able to use that. Won't know about the details until the CSD kit arrives.
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Old 07-05-2017, 08:48 PM
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175s aren't too big for a 38r. A 38r will support over 500rwhp. Other than a T4 and prior to the KC38r, the 38r was the best (only) available drop in turbo. That being said the SXE out flows it on top and spools way quicker on the bottom. But the cost of a T4 isn't for everyone.

I have Banks exhaust and Carson's down pipe along with a 3 1/2" to 4" coupler lined right up with the existing pipe and I just used a couple of clamps to hold it together. It took a little adjusting to keep the DP away from the firewall, but it was easy. Make sure you oil the turbo before start up and take it easy for a few miles before you go making 40lbs of boost.
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Old 07-06-2017, 01:08 PM
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Originally Posted by SRBF150 View Post
I think the 175's are a bit much for the 38R. I've got about 13K miles with the 38R and it's been a good combination but I've got some pretty good testimonials about this SXE turbo and this size injector so... going for it.

Thanks for that tip The Brad, if you think of anything else, let me know. I'm not sure how I'll approach the DP meaning just hang it in there to install the turbo and then go to an exhaust shop or try to mate it myself. Depends on how close it is I suppose. I also route the CCV to the intake, tried it routed outside and did not like it at all. I've adapted a 4" tube by welding an AN fitting to it and route to that so I may be able to use that. Won't know about the details until the CSD kit arrives.
Are you looking to part with your GTP 38R setup?

I'm hoping to get my hands on one. Either that, or I'll buy a KC 38r new
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Old 07-07-2017, 12:39 PM
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Are you looking to part with your GTP 38R setup?

I'm hoping to get my hands on one. Either that, or I'll buy a KC 38r new
​​​​​​
Yes, I plan to sell the 38R.

Last edited by Stewart_H; 08-20-2017 at 06:23 PM. Reason: Go bring post into compliance with FTE Guidelines
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Old 07-07-2017, 02:52 PM
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Yes, I plan to sell the 38R.


PM SENT .....

Last edited by Stewart_H; 08-20-2017 at 06:24 PM.
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Old 08-06-2017, 08:17 PM
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Installed the turbo this weekend. Everything went in well with a couple exceptions. 1) The down pipe doesn't line up good enough with the 4" exhaust I have. I removed a 4' section of the exhaust so I could install the supplied down pipe. It will need to go to the exhaust shop which is not unexpected. 2) the down pipe clamp sent in the CSD kit via DP Tuner was way to large, they didn't check it apparently as it's probably 1-2" too large. The stock clamp was used instead but it doesn't fit correctly either so hopefully the exhaust shop will have one that fits. I'll Reach out to DP Tuner to see if a replacement can be sent. Other than these two things, it all went smooth. Got the supplied 4" mandrel bent/welded intake tube trimmed in nicely with my new style S&B intake. Took it for a drive around the block and seemed fine, just loud with only a down pipe so I can't tell much from that short loud drive.






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Old 08-07-2017, 02:38 PM
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Curious to hear your opinion of the swap. I know what mine is and i personally think BWs new line blows it out of the water, on a lot of different motor platforms!
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Old 08-07-2017, 02:40 PM
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I think I see some pricey stuff under that hood.
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Old 08-07-2017, 07:26 PM
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I think I see some pricey stuff under that hood.
So that what you DONT see is a 2017 6.7.
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Old 08-08-2017, 12:04 PM
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I hear the cha-ching, but not how much? Any idea how much a T4 conversion kit runs?

Just curious
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Old 08-08-2017, 12:08 PM
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I hear the cha-ching, but not how much? Any idea how much a T4 conversion kit runs?

Just curious
About 2500 with turbo is what I have seen. Keep looking at my up pipes for any sign of leaks and thankfully not seeing any. If I were to do up pipes and a new turbo at the same time I think I would make the jump. Not a bad price for all that you get.
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Old 08-08-2017, 12:49 PM
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About 2500 with turbo is what I have seen. Keep looking at my up pipes for any sign of leaks and thankfully not seeing any. If I were to do up pipes and a new turbo at the same time I think I would make the jump. Not a bad price for all that you get.
I did the math yesterday, you can do it for 2300 even if you play your card right
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