2002 7.3 t4 turbo conversion s366sxe - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 21 (permalink) Old 07-22-2017, 04:29 AM Thread Starter
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2002 7.3 t4 turbo conversion s366sxe

Just installed the irate t4 kit with the s366sxe. I was wondering what everybody else is running egt wise. Running down the highway about 70 not pulling seeing about 750, but once i hook on to anything my egts sky rocket quickly to over 1200. I never let it get over 1200, but should i be seeing temps that high with this turbo? Top boost is about 28psi and i dont see anything register on the guage untill i get to about 40mph.

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post #2 of 21 (permalink) Old 07-26-2017, 11:55 PM
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Re: 2002 7.3 t4 turbo conversion s366sxe

What injectors and other mods are you running? Also, any tuning done to it?

Also, I am assuming you are using a different air filter than the one pictured? Doesn't look like that one is sealing too well
post #3 of 21 (permalink) Old 07-27-2017, 12:43 AM Thread Starter
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Re: 2002 7.3 t4 turbo conversion s366sxe

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Originally Posted by [email protected] View Post
What injectors and other mods are you running? Also, any tuning done to it?

Also, I am assuming you are using a different air filter than the one pictured? Doesn't look like that one is sealing too well
Still running stock injectors, all mods consist off 4 in turbo back exhaust, and a dp tuner, and ya that was my old airaid intake filter had to order a 6637 filter

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post #4 of 21 (permalink) Old 07-27-2017, 03:22 PM Thread Starter
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Re: 2002 7.3 t4 turbo conversion s366sxe

Ok this is a list of all mods done to the truck.
-4in mbrp exhaust turbo back.
-Auto meter guages-trans, boost, egts.
-Tunes- f6 dp tuner.
-CCV reroute to vent to atmosphere.
-T4 irate conversion with an s366sxe turbo.
-Napa 6637 intake filter.


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post #5 of 21 (permalink) Old 07-28-2017, 11:42 AM
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Re: 2002 7.3 t4 turbo conversion s366sxe

You have got to have some serious pre turbo exhaust leaks or a bad boost leak. My setup is comparable to yours and i very rarely see egts over 1200 degrees even when towing in hot weather.

You should put a boost leak detector on and see what you can find. Also look for leaks around your exhaust manifolds, up pipes, and collector where it mounts to the turbo.

Old Blue, 97' F350, CCLB, 7.3, Auto
Air: SD IC, 3" Plenums
Fuel: E- Fuel, 160/30 Injectors
Turbo: Irate T4, S366
Oil: T500, Melling LPOP
PCM: TW TS, IDM Mod
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post #6 of 21 (permalink) Old 07-28-2017, 09:56 PM
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Re: 2002 7.3 t4 turbo conversion s366sxe

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Originally Posted by plzstrokeme View Post
You have got to have some serious pre turbo exhaust leaks or a bad boost leak. My setup is comparable to yours and i very rarely see egts over 1200 degrees even when towing in hot weather.

You should put a boost leak detector on and see what you can find. Also look for leaks around your exhaust manifolds, up pipes, and collector where it mounts to the turbo.


Also, what exhaust housing are you running with the S366SXE?
post #7 of 21 (permalink) Old 07-31-2017, 09:58 PM Thread Starter
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Re: 2002 7.3 t4 turbo conversion s366sxe

Might have found the issue, one of the bolts from the collector to the turbo somehow worked its self lose. Im not seeing any soot is the only thing that still has me wondering if thats it. Justin, my housing is a, 0.91AR T4 Turbine Housing.

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post #8 of 21 (permalink) Old 07-31-2017, 11:29 PM
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Re: 2002 7.3 t4 turbo conversion s366sxe

That's the same housing I have. You should not have any egt issues with your setup. Something is definitely not right.

I highly recommend a boost leak detector. Mine has helped me many times. They are easy to make.

Old Blue, 97' F350, CCLB, 7.3, Auto
Air: SD IC, 3" Plenums
Fuel: E- Fuel, 160/30 Injectors
Turbo: Irate T4, S366
Oil: T500, Melling LPOP
PCM: TW TS, IDM Mod
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post #9 of 21 (permalink) Old 08-01-2017, 12:40 AM Thread Starter
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Re: 2002 7.3 t4 turbo conversion s366sxe

Here is some pictures, starting to think its a bad gasket possible.

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post #10 of 21 (permalink) Old 08-01-2017, 11:19 AM
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Re: 2002 7.3 t4 turbo conversion s366sxe

Try running the truck first thing in the morning when its somewhat cold and look for exhaust leaks. Use a mirror and look for smoke around the collector and up pipes.

Its still a good idea to use a boost leak detector to make sure you don't have any boost leaks. Every time I pull my intercooler plumbing apart I use mine to make sure I got everything sealed up good. I always seem to find a small leak around a clamp or something. I can't say enough about the boost leak detector besides get one and use it. I can almost guarantee you will find atleast 1 boost leak.
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Old Blue, 97' F350, CCLB, 7.3, Auto
Air: SD IC, 3" Plenums
Fuel: E- Fuel, 160/30 Injectors
Turbo: Irate T4, S366
Oil: T500, Melling LPOP
PCM: TW TS, IDM Mod
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