Evo X bolt on Garrett GT30R turbos
What kind of info are you looking for? I kinda posted my details across several posts (my fault) but what specifically are you looking for?
I agree with you on the Garrett rep thing, BUT...before I put my foot in my mouth I'm testing everything on my car before going to Garrett or one of thier distributors. Better to have all of the data before pointing fingers.
I agree with you on the Garrett rep thing, BUT...before I put my foot in my mouth I'm testing everything on my car before going to Garrett or one of thier distributors. Better to have all of the data before pointing fingers.

Hopefully you'll get to the bottom of the issues at hand soon enough.
On the one making 380whp on the mustang, it was peaking at 25psi and hit a peak torque of 394 wtq. The car was using a manual boost controller though so the boost dropped off up top.
I agree that some of these installs sound like other things are going wrong, we just need a nice writeup with a good success story to ease some minds. I have my turbo install date set for June 20th and I'm just waiting on a Tubular Exhaust manifold.
So many people bought these turbos when they were first released, yet there is a serious shortage of well-documented success stories. If you bought this turbo, please take the time to document your own install, troubles, and success so the rest of us can learn.
If anyone has a connection at Garrett, I think asking them to post their testing data would be good too. In a video I saw a Garrett rep said they have an Evo X test car, perhaps they have dyno data?
If anyone has a connection at Garrett, I think asking them to post their testing data would be good too. In a video I saw a Garrett rep said they have an Evo X test car, perhaps they have dyno data?
So here is my update...
Completed the compression test and it came back completely healthy. We're going to use a boroscope to look at the back of the turbo through the DP next.
Setup/tuning info:
Nisei Full IC pipe kit w/intake
K&N open element filter
FIC 900cc injectors
Forge WGA (red spring)
Stock Fuel pump
AMS FMIC
AMS full dp
Speed Circuit Test pipe
GReddy TiC Cat-back
GST Boost pill (from previous tune)
ECUFlash Software for tuning
AFR was 10.7-10.9 consistently
Boost was varied between 21-23psi (for initial tune)
Not completely sure about timing I'll have to let Bryan chime in on that (I do know it was retarded near the end since we had a lot of knock)
On a side note...another shop with a very similar setup had 2 of the 3076Rs fail due to WG flapper 1. bending 2. coming off completely (lodged in the cat). They installed the 3rd but I do not believe they have tuned it yet. This was all on the same car...
Not looking good for the initial batch...
I am going to be absolutely disappointed if in fact the turbo is bad. I really wouldn't have any confidence taking a replacement either as it sounds like there may be bigger issues with the design.
Completed the compression test and it came back completely healthy. We're going to use a boroscope to look at the back of the turbo through the DP next.
Setup/tuning info:
Nisei Full IC pipe kit w/intake
K&N open element filter
FIC 900cc injectors
Forge WGA (red spring)
Stock Fuel pump
AMS FMIC
AMS full dp
Speed Circuit Test pipe
GReddy TiC Cat-back
GST Boost pill (from previous tune)
ECUFlash Software for tuning
AFR was 10.7-10.9 consistently
Boost was varied between 21-23psi (for initial tune)
Not completely sure about timing I'll have to let Bryan chime in on that (I do know it was retarded near the end since we had a lot of knock)
On a side note...another shop with a very similar setup had 2 of the 3076Rs fail due to WG flapper 1. bending 2. coming off completely (lodged in the cat). They installed the 3rd but I do not believe they have tuned it yet. This was all on the same car...
Not looking good for the initial batch...
I am going to be absolutely disappointed if in fact the turbo is bad. I really wouldn't have any confidence taking a replacement either as it sounds like there may be bigger issues with the design.
Last edited by Boostd4; Jun 3, 2009 at 07:59 PM.
Thanks for the detailed post!
I'm still trying to put my hands around what is going on here. Is the turbo perfectly fine at lower RPM's where torque is at 350-400 ft lbs but then knocks at 5 or 6k and kills peak HP? I know the car can go into a limp mode if it sees too much airflow, are there any codes being thrown? Perhaps some FP Red and Dominator 2 owners can chime in if they had any similar issues pop up with larger turbos. I thought I read that some people had problems with the ECU shutting down the party on a few setups tuned for higher boost.
What still strikes me as odd is that if the turbo is pressurizing air into the engine, how could it be good air at lower RPM's but then suddenly be knock inducing air at higher RPM's. Some way of measuring temperature of the boosted airflow before it hits the intercooler might be helpful.
Any odd color smoke coming out of the tailpipe or turbo area for that matter? What about noises, could the housing be cracked somewhere causing the turbo to leak when at higher shaft speeds? Do check the turbine wheel is intact and of course the compressor wheel from the intake side. Verify there is no excessive play in the assembly, I plan on measuring mine with a micrometer before bolting it on the car so that there is no question. Verify that there is no dragging or binding in the shaft assembly.
Another shop having 2 turbos fail due to WG flappers bending and then even falling off the turbo sounds really scary! It would be interesting to see the final numbers on turbo number 3 for that car.
The stock fuel pump still concerns me somewhat even if you are going to tune for lower boost initially. Any upgraded turbo that you settle on where you are aiming for 25-26 psi on pump gas is going to dish out more than 450 crank HP and I just don't see the stock pump handling that duty.
I want to see you beat this problem soon!
I'm still trying to put my hands around what is going on here. Is the turbo perfectly fine at lower RPM's where torque is at 350-400 ft lbs but then knocks at 5 or 6k and kills peak HP? I know the car can go into a limp mode if it sees too much airflow, are there any codes being thrown? Perhaps some FP Red and Dominator 2 owners can chime in if they had any similar issues pop up with larger turbos. I thought I read that some people had problems with the ECU shutting down the party on a few setups tuned for higher boost.
What still strikes me as odd is that if the turbo is pressurizing air into the engine, how could it be good air at lower RPM's but then suddenly be knock inducing air at higher RPM's. Some way of measuring temperature of the boosted airflow before it hits the intercooler might be helpful.
Any odd color smoke coming out of the tailpipe or turbo area for that matter? What about noises, could the housing be cracked somewhere causing the turbo to leak when at higher shaft speeds? Do check the turbine wheel is intact and of course the compressor wheel from the intake side. Verify there is no excessive play in the assembly, I plan on measuring mine with a micrometer before bolting it on the car so that there is no question. Verify that there is no dragging or binding in the shaft assembly.
Another shop having 2 turbos fail due to WG flappers bending and then even falling off the turbo sounds really scary! It would be interesting to see the final numbers on turbo number 3 for that car.
The stock fuel pump still concerns me somewhat even if you are going to tune for lower boost initially. Any upgraded turbo that you settle on where you are aiming for 25-26 psi on pump gas is going to dish out more than 450 crank HP and I just don't see the stock pump handling that duty.
I want to see you beat this problem soon!
Thanks for the detailed post!
I'm still trying to put my hands around what is going on here. Is the turbo perfectly fine at lower RPM's where torque is at 350-400 ft lbs but then knocks at 5 or 6k and kills peak HP? I know the car can go into a limp mode if it sees too much airflow, are there any codes being thrown? Perhaps some FP Red and Dominator 2 owners can chime in if they had any similar issues pop up with larger turbos. I thought I read that some people had problems with the ECU shutting down the party on a few setups tuned for higher boost.
What still strikes me as odd is that if the turbo is pressurizing air into the engine, how could it be good air at lower RPM's but then suddenly be knock inducing air at higher RPM's. Some way of measuring temperature of the boosted airflow before it hits the intercooler might be helpful.
Any odd color smoke coming out of the tailpipe or turbo area for that matter? What about noises, could the housing be cracked somewhere causing the turbo to leak when at higher shaft speeds? Do check the turbine wheel is intact and of course the compressor wheel from the intake side. Verify there is no excessive play in the assembly, I plan on measuring mine with a micrometer before bolting it on the car so that there is no question. Verify that there is no dragging or binding in the shaft assembly.
Another shop having 2 turbos fail due to WG flappers bending and then even falling off the turbo sounds really scary! It would be interesting to see the final numbers on turbo number 3 for that car.
The stock fuel pump still concerns me somewhat even if you are going to tune for lower boost initially. Any upgraded turbo that you settle on where you are aiming for 25-26 psi on pump gas is going to dish out more than 450 crank HP and I just don't see the stock pump handling that duty.
I want to see you beat this problem soon!
I'm still trying to put my hands around what is going on here. Is the turbo perfectly fine at lower RPM's where torque is at 350-400 ft lbs but then knocks at 5 or 6k and kills peak HP? I know the car can go into a limp mode if it sees too much airflow, are there any codes being thrown? Perhaps some FP Red and Dominator 2 owners can chime in if they had any similar issues pop up with larger turbos. I thought I read that some people had problems with the ECU shutting down the party on a few setups tuned for higher boost.
What still strikes me as odd is that if the turbo is pressurizing air into the engine, how could it be good air at lower RPM's but then suddenly be knock inducing air at higher RPM's. Some way of measuring temperature of the boosted airflow before it hits the intercooler might be helpful.
Any odd color smoke coming out of the tailpipe or turbo area for that matter? What about noises, could the housing be cracked somewhere causing the turbo to leak when at higher shaft speeds? Do check the turbine wheel is intact and of course the compressor wheel from the intake side. Verify there is no excessive play in the assembly, I plan on measuring mine with a micrometer before bolting it on the car so that there is no question. Verify that there is no dragging or binding in the shaft assembly.
Another shop having 2 turbos fail due to WG flappers bending and then even falling off the turbo sounds really scary! It would be interesting to see the final numbers on turbo number 3 for that car.
The stock fuel pump still concerns me somewhat even if you are going to tune for lower boost initially. Any upgraded turbo that you settle on where you are aiming for 25-26 psi on pump gas is going to dish out more than 450 crank HP and I just don't see the stock pump handling that duty.
I want to see you beat this problem soon!
With the Garrett installed (with the mods listed in my previous post), WHP peaked at 270@6600 and WTQ peaked at 260@4329. The car never threw any codes, no weird smoke and fuel was consistent. The turbo sounds normal, no weird sounds or audible leaking. The guys at the shop have a lot of experience with Garrett turbos and they didn't hear anything out of the ordinary.
On the subject of the other shop, I didn't see it with my own eyes but from the report the shop gave conveyed through the guys at GST, it sounded like a pretty serious issue.
I too was concerned about the fuel pump, and I have a 255 pump on hand to swap in. However, we wanted to see if the stocker could handle low levels of boost as others have seen decent results to a certain level with the stock pump.
I really hope that things can be made right, but my problem right now is that if in fact the turbo is bad I can't afford to continue swapping it out at $600 a pop. Thus, I can't justify popping in a replacement with any level of confidence.
Thanks. Once I confirm without a doubt that the turbo is the issue...I'll be seeking a full refund and I'll be popping in the Dom2. I know it's the first run of the turbo...and maybe it was an issue that will be fixed...but there is no way I'm putting in a "replacement" from the same production run.
Last edited by Boostd4; Jun 4, 2009 at 11:55 AM.
Wasnt CBRD doing the testing with this turbo? and weren't they putting one on their shop car a couple weeks ago?
Its very interesting they haven't mentioned anything or come in to update... I would have to assume that they too are having issues.... but that is pure speculation.
Its very interesting they haven't mentioned anything or come in to update... I would have to assume that they too are having issues.... but that is pure speculation.
Wasnt CBRD doing the testing with this turbo? and weren't they putting one on their shop car a couple weeks ago?
Its very interesting they haven't mentioned anything or come in to update... I would have to assume that they too are having issues.... but that is pure speculation.
Its very interesting they haven't mentioned anything or come in to update... I would have to assume that they too are having issues.... but that is pure speculation.
That's pretty much all I can say.
I haven't gotten anything back from Garrett as of yet...and one of their distributors (which I will not name at this point) was aggressively denying ANY defects with ANY of the kits. They claimed that they had several cars running around with this kit with ZERO issues. Even though NO ONE has posted a single dyno sheet backing that up. Strange.
Since I can't publish the details that I have been provided at this point...let's just say they (the distributor) were lying to me.
Last edited by Boostd4; Jun 5, 2009 at 01:21 PM.







