Evo X bolt on Garrett GT30R turbos
Yes, I'm hoping that if by some small chance that the turbo is the culprit Garrett will make things right.
That being said...I personally think something else is going on with my car, so I don't want people to think that I automatically assumed the turbo was the issue. We (GST and I) are going through the car inch by inch to make sure everything is in order. I mentioned before that the MAF sensor was dropped on the shop floor right before the dyno session while swapping filters.
So, this Wednesday we do a leakdown and compression test as the last step. I've scheduled dyno time on Saturday the 6th and I have a donor MAF sensor to test my theory.
Crossing fingers, I hope I have some good news for you guys.
That being said...I personally think something else is going on with my car, so I don't want people to think that I automatically assumed the turbo was the issue. We (GST and I) are going through the car inch by inch to make sure everything is in order. I mentioned before that the MAF sensor was dropped on the shop floor right before the dyno session while swapping filters.
So, this Wednesday we do a leakdown and compression test as the last step. I've scheduled dyno time on Saturday the 6th and I have a donor MAF sensor to test my theory.
Crossing fingers, I hope I have some good news for you guys.
There's somone on the EvoXForums with some updates. This is with the 3071...this doesn't look too good...at all.
MODS:
POWER NUMBERS
MODS:
POWER NUMBERS
Last edited by Evo-IX-MOMO248; Jun 3, 2009 at 09:19 AM.
I wish we could get more info from these people getting the turbos installed. I have a GT3076R ready to install, just waiting on a few more supporting mods to make their way here. Now I'm starting to get worried that this turbo with it's perfect specs that I want isn't going to hold up it's end of the bargain.
What bothers me is the guy that reported the HP loss on the EvoX forums didn't even know what boost they were running nor did he seem to care... LOL. There seriously could be packing peanuts stuck in the damn things. We need as much information as possible to figure this out.
So those that know turbo design, what exactly could be defective or failing on these turbos to cause knock and horsepower loss at higher RPM's? Is the assembly out of balance or the compressor not flowing properly somehow? I just don't get it and having a Garrett rep involved ASAP would be a very good idea for their reputation.
Summary:
Boostd4: Posted results page 21, had knock at higher RPM's trying to run low 20's psi on GT3076r
Evo400: Posted Dyno page 23, Results were 480 HP at 23-24 psi on GT3076r
Mrpaddlepop: Posted on EvoX forums with HP loss 340 HP -> 305 HP at unknown boost on GT3071r
What bothers me is the guy that reported the HP loss on the EvoX forums didn't even know what boost they were running nor did he seem to care... LOL. There seriously could be packing peanuts stuck in the damn things. We need as much information as possible to figure this out.
So those that know turbo design, what exactly could be defective or failing on these turbos to cause knock and horsepower loss at higher RPM's? Is the assembly out of balance or the compressor not flowing properly somehow? I just don't get it and having a Garrett rep involved ASAP would be a very good idea for their reputation.
Summary:
Boostd4: Posted results page 21, had knock at higher RPM's trying to run low 20's psi on GT3076r
Evo400: Posted Dyno page 23, Results were 480 HP at 23-24 psi on GT3076r
Mrpaddlepop: Posted on EvoX forums with HP loss 340 HP -> 305 HP at unknown boost on GT3071r
Last edited by Hiboost; Jun 3, 2009 at 10:28 AM.
I found this basic Troubleshooting chart at the Garrett site, might help:
http://www.turbobygarrett.com/turbob...ting_Guide.pdf
As for contacting Garrett, it says to talk to a Garrett Distributor and there is no main tech contact.
http://www.turbobygarrett.com/turbob...tributors.html
http://www.turbobygarrett.com/turbob...ting_Guide.pdf
As for contacting Garrett, it says to talk to a Garrett Distributor and there is no main tech contact.
http://www.turbobygarrett.com/turbob...tributors.html
Last edited by Hiboost; Jun 3, 2009 at 11:45 AM.
So far, I know of a 3071R making 360whp (I think on a dynojet) at 22psi. I know of a 3076R on a 2.2L Cosworth making 380whp on a mustang at 20psi (cams, FMIC, cat, 3" exhaust, AMS downpipe). Another 3076R making 350whp on a dynojet with bolt-ons (FMIC, upper IC pipe, o2/downpipe combo, test pipe, stock exhaust) and NO tune running 20psi.
With the install, it requires removing the intake and upper IC pipe. How many times have we seen guys get boost leaks because of that? There's just a thread on a guy that has massive boost leaks with his 2-piece upper IC pipe.
With the install, it requires removing the intake and upper IC pipe. How many times have we seen guys get boost leaks because of that? There's just a thread on a guy that has massive boost leaks with his 2-piece upper IC pipe.
So far, I know of a 3071R making 360whp (I think on a dynojet) at 22psi. I know of a 3076R on a 2.2L Cosworth making 380whp on a mustang at 20psi (cams, FMIC, cat, 3" exhaust, AMS downpipe). Another 3076R making 350whp on a dynojet with bolt-ons (FMIC, upper IC pipe, o2/downpipe combo, test pipe, stock exhaust) and NO tune running 20psi.
With the install, it requires removing the intake and upper IC pipe. How many times have we seen guys get boost leaks because of that? There's just a thread on a guy that has massive boost leaks with his 2-piece upper IC pipe.
With the install, it requires removing the intake and upper IC pipe. How many times have we seen guys get boost leaks because of that? There's just a thread on a guy that has massive boost leaks with his 2-piece upper IC pipe.
I'm starting to think that maybe there was an issue with the initial batch of 76Rs that went out. Now, I'm going in for a leakdown and compression test today to see if there is anything going on with the motor. We already did a boost leak test and everything we changed was double checked.
I'll have a definite answer by Saturday as we're giving it one last shot on the dyno.
I'll have a definite answer by Saturday as we're giving it one last shot on the dyno.
I wish we could get more info from these people getting the turbos installed. I have a GT3076R ready to install, just waiting on a few more supporting mods to make their way here. Now I'm starting to get worried that this turbo with it's perfect specs that I want isn't going to hold up it's end of the bargain.
What bothers me is the guy that reported the HP loss on the EvoX forums didn't even know what boost they were running nor did he seem to care... LOL. There seriously could be packing peanuts stuck in the damn things. We need as much information as possible to figure this out.
So those that know turbo design, what exactly could be defective or failing on these turbos to cause knock and horsepower loss at higher RPM's? Is the assembly out of balance or the compressor not flowing properly somehow? I just don't get it and having a Garrett rep involved ASAP would be a very good idea for their reputation.
Summary:
Boostd4: Posted results page 21, had knock at higher RPM's trying to run low 20's psi on GT3076r
Evo400: Posted Dyno page 23, Results were 480 HP at 23-24 psi on GT3076r
Mrpaddlepop: Posted on EvoX forums with HP loss 340 HP -> 305 HP at unknown boost on GT3071r
What bothers me is the guy that reported the HP loss on the EvoX forums didn't even know what boost they were running nor did he seem to care... LOL. There seriously could be packing peanuts stuck in the damn things. We need as much information as possible to figure this out.
So those that know turbo design, what exactly could be defective or failing on these turbos to cause knock and horsepower loss at higher RPM's? Is the assembly out of balance or the compressor not flowing properly somehow? I just don't get it and having a Garrett rep involved ASAP would be a very good idea for their reputation.
Summary:
Boostd4: Posted results page 21, had knock at higher RPM's trying to run low 20's psi on GT3076r
Evo400: Posted Dyno page 23, Results were 480 HP at 23-24 psi on GT3076r
Mrpaddlepop: Posted on EvoX forums with HP loss 340 HP -> 305 HP at unknown boost on GT3071r
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.
Thanks for chiming in with some success stories! Seems like all of those are making strong numbers at relatively low boost. I plan on installing all supporting mods for fuel this week so that there will be no question they are an issue. I plan on tuning the car for 20-22 psi initially to make sure I'm safe and in the ballpark, then shoot for 25-26 psi on 93 pump as a final goal. Was there a reason that all of those installs you listed were at only 20-22 psi?
As for the 3071R at 22psi, it had a weak sauce actuator on it. An upgraded unit like the Forge is required.
I don't get how some of the guys are NOT making power. Turbo operation is pretty simple. Regardless of the turbo, could be a FP Red, Blouch, whatever. There's a LOT you can mess up on the install though. I mean, you're taking off the entire intake, upper IC pipes, exhaust mani, downpipe, etc. Every thing that gets taken off can be a problem. It'd take a page to list it all. You even have to be careful on the installation of the inlet elbow onto the turbo. If it's not done correctly, then there's a potential leak there. I'm willing to bet all these guys having problems are just having install errors.
All you have to do is look at that thread title something along the lines of "jerking at 5k rpms". All he did was install a 2pc upper IC pipe. Had a boost leak so bad he could hear it at 4k and then the car just fell flat on its face at 5k. Now compare the installation of just a UICP to a whole turbo!
Last edited by spdracerut; Jun 3, 2009 at 01:06 PM.