Tial V-band turbine housing testing.
Tial V-band turbine housing testing.
I've done some recent testing against the Garrett GT turbine housing on our forward facing header and now with the Tial Vband turbine housing on a forward facing header.
I was told by Tial that the housing is based around the Garrett GT turbine housing and the results should be nearly identical.
The header primaries remained the same size and the basic position of the turbo is the same. The header I built for the Tial housing is a little bit different than our standard forward facing header. I do not feel it's different enough to effect the testing by much if any.
What I found was Tial is correct the two housings are very close in performance. I prefer to do testing back-to-back as everyone knows and in this case it was no possible. A few things changed, weather being one of them with intake air temps 20 degrees higher today on the average pull.
Boost levels were kept constant during the testing.
Over the average 4 dyno pulls from 2500 rpm to 8000 rpm, checking the RPM the engine hit 20 psi on the Garrett housing I found the average to be 4912 rpm to hit 20 psi. As I said, this was a month or more ago in cooler temps and such.
Today taking the average of 4 pulls with the Tial housing from 2500-8000 rpm, the turbo is hitting 20 psi at 4950 rpm.
We're talking about 38 rpm, not noticable but I am providing the best information I can.
Peak power and the overall curve appear the same. Comparing charts from over a month ago to todays with the other variables I am satisfied and confident in saying the Tial will produce the same curve from start to finish as the Garrett GT housing.
The benefits of the Tial are of course: Full V-band design, so it comes on and off very easily. Lighter weight, stainless steel housing for better heat control and it won't rust.
One of my big worries was I didn't want to lose any power anywhere in the curve. I'm confident based on hours of looking at datalogs and dyno sheets today that it's a great quality product!
I'll be leaving the housing on my car with the custom header I built.
I was told by Tial that the housing is based around the Garrett GT turbine housing and the results should be nearly identical.
The header primaries remained the same size and the basic position of the turbo is the same. The header I built for the Tial housing is a little bit different than our standard forward facing header. I do not feel it's different enough to effect the testing by much if any.
What I found was Tial is correct the two housings are very close in performance. I prefer to do testing back-to-back as everyone knows and in this case it was no possible. A few things changed, weather being one of them with intake air temps 20 degrees higher today on the average pull.
Boost levels were kept constant during the testing.
Over the average 4 dyno pulls from 2500 rpm to 8000 rpm, checking the RPM the engine hit 20 psi on the Garrett housing I found the average to be 4912 rpm to hit 20 psi. As I said, this was a month or more ago in cooler temps and such.
Today taking the average of 4 pulls with the Tial housing from 2500-8000 rpm, the turbo is hitting 20 psi at 4950 rpm.
We're talking about 38 rpm, not noticable but I am providing the best information I can.
Peak power and the overall curve appear the same. Comparing charts from over a month ago to todays with the other variables I am satisfied and confident in saying the Tial will produce the same curve from start to finish as the Garrett GT housing.
The benefits of the Tial are of course: Full V-band design, so it comes on and off very easily. Lighter weight, stainless steel housing for better heat control and it won't rust.
One of my big worries was I didn't want to lose any power anywhere in the curve. I'm confident based on hours of looking at datalogs and dyno sheets today that it's a great quality product!
I'll be leaving the housing on my car with the custom header I built.
Good to know, thanks for the update on the changes.
The upgrade to the Tial housing on a new turbo is $0 if you go through ATP Turbo.
I would imagine that other Garrett dealers can do the same?
Since TIAL is the inovator lately...when the hell are you guys going to come out with a TS version of your housings so those that want to go TS aren't stuck with 15 pound Garrett/ATP housings?
The upgrade to the Tial housing on a new turbo is $0 if you go through ATP Turbo.
I would imagine that other Garrett dealers can do the same?
Since TIAL is the inovator lately...when the hell are you guys going to come out with a TS version of your housings so those that want to go TS aren't stuck with 15 pound Garrett/ATP housings?
the new garrett gt housings really dont rust and are a ton lighter than the old iron ones. this one was ran on my old sti for a while and i had it under a blanket and drove it rain or shine.


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Agreed. Something for the 35r in a 1.10 t4 size would be most ideal. I would buy the 1st one.
Good to know, thanks for the update on the changes.
The upgrade to the Tial housing on a new turbo is $0 if you go through ATP Turbo.
I would imagine that other Garrett dealers can do the same?
Since TIAL is the inovator lately...when the hell are you guys going to come out with a TS version of your housings so those that want to go TS aren't stuck with 15 pound Garrett/ATP housings?
The upgrade to the Tial housing on a new turbo is $0 if you go through ATP Turbo.
I would imagine that other Garrett dealers can do the same?
Since TIAL is the inovator lately...when the hell are you guys going to come out with a TS version of your housings so those that want to go TS aren't stuck with 15 pound Garrett/ATP housings?
14 cm^2 TD05H "twin" scroll
Asymmetrical Scrolls/Nozzles
67mm turbine
18 degree diffuser
3" low profile V-band inlet/outlet
3mm thick 347 stainless
4.5 pounds
Normal rotation

If only it was so easy to cast a piece...
Maybe this should go in the "dream evo" thread.
Asymmetrical Scrolls/Nozzles
67mm turbine
18 degree diffuser
3" low profile V-band inlet/outlet
3mm thick 347 stainless
4.5 pounds
Normal rotation

If only it was so easy to cast a piece...
Maybe this should go in the "dream evo" thread.
Last edited by 03whitegsr; Apr 16, 2010 at 08:04 PM.


