S400

ripmf666

Active member
Sep 20, 2006
15,123
14
38
47
Wentzville Mo
Well here is what the turbo is going to be, it will have a 71mm compressor wheel and a 74mm turbine wheel with a 1.10 A/R T4 housing.


Is this what your getting, the compressor is alittle bigger then the 4294 and the turbine wheel is smaller then one of as 4094 just seems werd.
http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT40/GT4094R_751470-21.htm

How much will you have into this with install kit and all,also is not a ball bearing or water cooled turbo your getting right? seemd kinda off since you were talking going a gt42 magnum not getting one that seems to be small on the turbine side.
 

05_LLY

Out-A-Time
Aug 7, 2006
1,756
1
36
42
Norvelt, PA
The turbine is much bigger then the 4094, If i understand it right garret has the inducer of the turbine on the web site its 77mm, the inducer of the s400 is 83mm, the exducer is 74mm!

It will actually be real close to the 4294 in compressor and turbine side actually just a pinch larger! But im willing to be the GT style turbine wheels flow better!
 

ripmf666

Active member
Sep 20, 2006
15,123
14
38
47
Wentzville Mo
The turbine is much bigger then the 4094, If i understand it right garret has the inducer of the turbine on the web site its 77mm, the inducer of the s400 is 83mm, the exducer is 74mm!

It will actually be real close to the 4294 in compressor and turbine side actually just a pinch larger! But im willing to be the GT style turbine wheels flow better!


I'm going by what he post,

Right here
Well here is what the turbo is going to be, it will have a 71mm compressor wheel and a 74mm turbine wheel with a 1.10 A/R T4 housing
 

othrgrl

Diesel Addiction Owner
Mar 10, 2008
2,151
4
38
Wilmington NC
www.mydieseladdiction.com
I'm going by what he post,

Right here
Well here is what the turbo is going to be, it will have a 71mm compressor wheel inducerand a 74mm turbine wheel exducerwith a 1.10 A/R T4 housing

The inducer of the turbine (what garrett labels the wheel diameter) is 83mm so it is a touch larger than a GT42 turbine's 82mm inducer. The compressor is a touch larger than the 4294.
 

durallymax

New member
Apr 26, 2008
2,756
1
0
Under The Hood
^^^^exactly. it gets confusing as different people go off of different measurements.

I figured when I put it in us terms it would clarify. 2.8" inlet. 3.0" out
 

durallymax

New member
Apr 26, 2008
2,756
1
0
Under The Hood
How much will you have into this with install kit and all,also is not a ball bearing or water cooled turbo your getting right? seemd kinda off since you were talking going a gt42 magnum not getting one that seems to be small on the turbine side.

I dont know how much it will be. Im fabbing the stuff by myself. The New pedestal, downpipe and intake plumbing.

Its not ball bearing or watercooled as far as I know.

The GT42 magnum was for my other motor, not this current one.

This S400 is for this years season with a stock motor.
 

05_LLY

Out-A-Time
Aug 7, 2006
1,756
1
36
42
Norvelt, PA
I'm going by what he post,

Right here
Well here is what the turbo is going to be, it will have a 71mm compressor wheel and a 74mm turbine wheel with a 1.10 A/R T4 housing

NO biggie!

Meauring the 4094 turbine the wheel would be like 77ind. 69exd.
Measuring the s400 turbine the wheel would be 83ind. 74exd

however the s400 is able to have a 83, 87 and 96 mm inducer turbines on them!
 

durallymax

New member
Apr 26, 2008
2,756
1
0
Under The Hood
Well its done and sitting in my shop. Ended up with a 1.00 A/R instead as he felt it would probably be a little better choice.

I also broke down and bought PPEs GT42 install kit and so far i am not very satisfied with it. for what they charge you would think they could maybe build the pedestal in a jig and not make it look like a cobbled together piece that looks like it was made using parts fromt eh scrap bin.

Regardless of looks, the fact that mine isnt square has caused it to not fit. The T4 flange hits the intake manifold and wont let me get the pass side pedestal tab flush. I tried it on my other block and the pass side pedestal tab hits a part of the block and would need to be ground down to make it work. In addition the upipe flange rubs the block and probably contributes to more issues. i dont like how rough they leave the ports, they dont even look close to the same size.

The worst part is that the T4 flange is not square with the upipe flange or the mounting brackets so my turbo faces the drivers side about 5" assuming we are looking from the rear of the turbo.

They also forgot to ship my spacer, but i guess that will be in tomorrow, now the spacer does me no good without a pedestal.

Heres a pic, but its not like its amazing, its just another turbo.

0211092103a.jpg
 

sweetdiesel

That's better
Aug 6, 2006
10,390
0
0
52
Thailand
Well its done and sitting in my shop. Ended up with a 1.00 A/R instead as he felt it would probably be a little better choice.

I also broke down and bought PPEs GT42 install kit and so far i am not very satisfied with it. for what they charge you would think they could maybe build the pedestal in a jig and not make it look like a cobbled together piece that looks like it was made using parts fromt eh scrap bin.

Regardless of looks, the fact that mine isnt square has caused it to not fit. The T4 flange hits the intake manifold and wont let me get the pass side pedestal tab flush. I tried it on my other block and the pass side pedestal tab hits a part of the block and would need to be ground down to make it work. In addition the upipe flange rubs the block and probably contributes to more issues. i dont like how rough they leave the ports, they dont even look close to the same size.

The worst part is that the T4 flange is not square with the upipe flange or the mounting brackets so my turbo faces the drivers side about 5" assuming we are looking from the rear of the turbo.

They also forgot to ship my spacer, but i guess that will be in tomorrow, now the spacer does me no good without a pedestal.

Heres a pic, but its not like its amazing, its just another turbo.

0211092103a.jpg

I have a S400 and PPE pedistall and spacer.....My pedistall fits perfect,But like you say it has a clearance issue on the PS intake runner
But remember are trucks where meant to have a T3( style ) pedistall.....So we are going to need to adjust JMHO
5 minutes with a die grinder and i was good to go:) My up pipes fit just fine.
Sorry to hear you have issues
 

durallymax

New member
Apr 26, 2008
2,756
1
0
Under The Hood
well if they all come out this way thats fine, but if it was welded on square it would clear, or at least with minimal grinding.,

I know its a tight fit, but it looks like it couldve been done a little better.

There wasnt a single person standing in the shop that Thought the S400 would fit when they saw it, many of them are not very smart though.
 
Last edited:

McRat

Diesel Hotrodder
Aug 2, 2006
11,249
26
38
64
Norco CA
www.mcratracing.com
not to mention i think that the Airwerks housings are nicely designed and the ETT wheels are second to none

Dunno. I'm one of the few folk around who have run both the Garrett and S400 of exactly the same size. The S400 ETT Airwerks with the 3.0 inducer and the GT4202R are nearly identical in measurements in all aspects. Yup, I took both apart and measured everything.

The Garrett will make 4-5lbs more boost, and be a couple tenths quicker in the quarter mile, with the same AR.

I like the S400 more for street, but the GT4202 gets the nod for the track, but not by much.

High Tech can get you a wide variety of S400 based chargers.

The reason you see small differences between brands on sizing is some catalogs measure the bore, others the wheel. That difference can be as large as .050" on some charger dims.
 

McRat

Diesel Hotrodder
Aug 2, 2006
11,249
26
38
64
Norco CA
www.mcratracing.com
As far as the PPE install kit goes, there is not enough demand for big Dmax charger kits to go into mass production. That's why nobody but PPE is selling install kits outright that I know of. Too much of a gamble, too little money to be made.

The PPE kit might look simplistic, but even with EGT's so high I melted turbines and riser pipes, it has always held up.
 

juddski88

Freedom Diesel
Jul 1, 2008
4,655
120
63
Chesterfield, Mass.
Well its done and sitting in my shop. Ended up with a 1.00 A/R instead as he felt it would probably be a little better choice.

I also broke down and bought PPEs GT42 install kit and so far i am not very satisfied with it. for what they charge you would think they could maybe build the pedestal in a jig and not make it look like a cobbled together piece that looks like it was made using parts fromt eh scrap bin.

Regardless of looks, the fact that mine isnt square has caused it to not fit. The T4 flange hits the intake manifold and wont let me get the pass side pedestal tab flush. I tried it on my other block and the pass side pedestal tab hits a part of the block and would need to be ground down to make it work. In addition the upipe flange rubs the block and probably contributes to more issues. i dont like how rough they leave the ports, they dont even look close to the same size.

The worst part is that the T4 flange is not square with the upipe flange or the mounting brackets so my turbo faces the drivers side about 5" assuming we are looking from the rear of the turbo.

They also forgot to ship my spacer, but i guess that will be in tomorrow, now the spacer does me no good without a pedestal.

Heres a pic, but its not like its amazing, its just another turbo.

0211092103a.jpg

so it was hitting the intake without a spacer? if thats what you mean thats normal....even with a spacer mine still hit and i ground all the EGR stuff off and rotated the comp. housing a bit to make it fit with a 1/16" clearance. i agree on the PPE ped and kit quality though..i thought it was atrocious when i first took it out, but with a dremel and some patience i opened the ports and smoothed them out. I would also recommend NOT using the PPE oil feed and drain, i would have a braided ss line made to run off the oil cooler or the pass. side front of the block then have a large ss line made for the drain so it is easier to connect and disconnect everything (mounting the turbo and lining it up to the solid drain tube is a PITA)...i know it's depressing to hear you spent all that money on a ped. and a spacer and some gaskets but myself and others have had to do the same thing :( even though its not fun.