GT35R Turbo Update

blueroadster · 11-25-2007, 05:53 PM

In the process of installing the oil cooler kit, I had to remove several parts to include the downpipe. Once that part was removed, I looked inside of the turbine housing and the fins appeared to be chewed up a little. I removed the whole turbo assembly to get a better look and brought it to a friends house to discuss. Here is a PIC:

When I installed the turbo assembly the last time (several months ago), I was very careful to make sure that all parts were clean and free of debris again. The fins were also in mint condition at the time. After installation, I never heard any strange sounds at all.

Not knowing what could have caused the damage, we decided to check the compression to make sure that it was not something that went through the engine and into the turbine housing. As a result, the compression was good on all four cylinders and the engine is still running strong.

The only other thing that we could think of that could cause such damage would be if the fins got super heated which caused the metal to weaken and sheer bit by bit. I don't know how much heat the fins can take before the metal weaks (i'd imagine a lot), but too much heat seems to make sense (i.e., an overly rich condition causing gas fumes to also ignite in the turbine housing thus creating a lot more heat and stress on the fins). Does that make sense?

RedShiftChris · 11-25-2007, 06:07 PM

I'll put my vote in for a foreign object ingested. :)

Chris

blueroadster · 11-25-2007, 06:24 PM

I guess a foreign object can't be ruled out entirely. I sent the manifold with turbo assembly attached to a machine shop several months ago to get the flange on the manifold machined smooth. The machine shop could have dropped something into the housing when they assembled everything back together and I could have totally missed that. If they did drop something in there though, I would have thought that I would hear grinding or something.

In any event, this really sucks. The turbo assembly will need to be sent out for repair which will probably take some time to get back.

Highrev1 · 11-25-2007, 07:24 PM

Is that a new Variable Turbo you got there?

Sorry to hear about it Blue...Just a basic repair nothing crazy?

***Whocares05050*** · 11-25-2007, 07:29 PM

Can you tell me WHY your using teflon tape on the oil inlet for the turbo?

jnaut · 11-25-2007, 07:35 PM

where is the teflon you are talking about or am i not seeing all the pics? are you talking about the fitting on the compressor??

blueroadster · 11-25-2007, 07:38 PM

Quote:

Originally Posted by Whocares05050

Can you tell me WHY your using teflon tape on the oil inlet for the turbo?

What are you talking about?

***Whocares05050*** · 11-25-2007, 07:39 PM

Quote:

Originally Posted by jnaut

where is the teflon you are talking about or am i not seeing all the pics? are you talking about the fitting on the compressor??

Excuse me, i was'nt looking to good. haha, yeah, my bad. vacuum sourse. oops.

blueroadster · 11-25-2007, 07:41 PM

Quote:

Originally Posted by jnaut

where is the teflon you are talking about or am i not seeing all the pics? are you talking about the fitting on the compressor??

He's talking about the brass barb fitting that is screwed into the compressor housing. That is not the oil inlet for the turbo.

***Whocares05050*** · 11-25-2007, 07:42 PM

^ read above

Tigre · 11-25-2007, 09:22 PM

i guaranteed foreign object damage from the fact the each fine carries a similar pattern of damage. also last time i checked gt35 were only repairable by replacing the entire char housing yet another reason i prefer journal bearing....

***07CivicMD*** · 11-25-2007, 10:12 PM

Sorry to hear blue!!

Si Speed 317 · 11-25-2007, 10:20 PM

Ouch, I'll vote for a foreign object entering that bad boy. Simple replacement though.

blueroadster · 11-26-2007, 07:01 AM

Quote:

Originally Posted by Tigre

i guaranteed foreign object damage from the fact the each fine carries a similar pattern of damage. also last time i checked gt35 were only repairable by replacing the entire char housing yet another reason i prefer journal bearing....

Thanks and shit.

blueroadster · 11-26-2007, 07:44 AM

Well, the chewed up fins on the turbo are not the only problem. There is also an exhaust leak on the downpipe itself. One of the welds split in what looks like a 1 inch long hairline fracture. You can see carbon deposits all around the split itself.

Mr Bigs · 11-26-2007, 08:00 AM

Quote:

Originally Posted by blueroadster

Well, the chewed up fins on the turbo are not the only problem. There is also an exhaust leak on the downpipe itself. One of the welds split in what looks like a 1 inch long hairline fracture. You can see carbon deposits all around the split itself.

Seriously looks like heat damage.

Tigre · 11-26-2007, 08:16 AM

i use antilag on street cars all the time and nothing will generate more damage than explosions in the manifold and turbine housing and the turbos dont look like that after a year. that sir resembles foreign object damage and its gonna be the first thing Precision says when they see it.

chullen · 11-26-2007, 10:23 AM

sorry to see that your turbo is messed up looks like you need a new one. anyway looks like AJP screwed up again with horrible welding

blueroadster · 11-26-2007, 10:36 AM

Quote:

Originally Posted by chullen

sorry to see that your turbo is messed up looks like you need a new one. anyway looks like AJP screwed up again with horrible welding

True, but the welding was not the cause of the fins getting all chopped up. I've got some thinking to do.

***07CivicMD*** · 11-26-2007, 10:50 AM

Sorry to hear!! That's going to cost! Let me know if there's anything I can do to help.

11-25-2007, 05:53 PM	#1 (permalink)
blueroadster Senior Member Member Join Date: Aug 2006 Location: Maryland Posts: 3,573 iTrader: 7 / 100%	GT35R Turbo Update In the process of installing the oil cooler kit, I had to remove several parts to include the downpipe. Once that part was removed, I looked inside of the turbine housing and the fins appeared to be chewed up a little. I removed the whole turbo assembly to get a better look and brought it to a friends house to discuss. Here is a PIC: When I installed the turbo assembly the last time (several months ago), I was very careful to make sure that all parts were clean and free of debris again. The fins were also in mint condition at the time. After installation, I never heard any strange sounds at all. Not knowing what could have caused the damage, we decided to check the compression to make sure that it was not something that went through the engine and into the turbine housing. As a result, the compression was good on all four cylinders and the engine is still running strong. The only other thing that we could think of that could cause such damage would be if the fins got super heated which caused the metal to weaken and sheer bit by bit. I don't know how much heat the fins can take before the metal weaks (i'd imagine a lot), but too much heat seems to make sense (i.e., an overly rich condition causing gas fumes to also ignite in the turbine housing thus creating a lot more heat and stress on the fins). Does that make sense?

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Reflash Update for AJP Based Turbo Cars	blueroadster	Forced Induction And Nitrous	143	12-20-2007 09:38 PM
Honda Accord GT35r Turbo Vs Gsx-R1000 and Gsx-R600	trev0006	Garage	3	10-13-2007 05:41 AM
Info on engines n/a and turbo	King Bob	Bolt-Ons And All-Motor	11	07-20-2007 01:11 AM
Turbo Update: GT-35R	blueroadster	Forced Induction And Nitrous	170	05-17-2007 08:22 PM
turbo update/ forced induction	sickyute	Forced Induction And Nitrous	26	11-23-2006 10:15 PM

11-25-2007, 06:07 PM	#2 (permalink)
RedShiftChris Senior Member Join Date: Nov 2006 Posts: 592 iTrader: 0 / 0%	I'll put my vote in for a foreign object ingested. :) Chris

11-25-2007, 06:24 PM	#3 (permalink)
blueroadster Senior Member Member Join Date: Aug 2006 Location: Maryland Posts: 3,573 iTrader: 7 / 100%	I guess a foreign object can't be ruled out entirely. I sent the manifold with turbo assembly attached to a machine shop several months ago to get the flange on the manifold machined smooth. The machine shop could have dropped something into the housing when they assembled everything back together and I could have totally missed that. If they did drop something in there though, I would have thought that I would hear grinding or something. In any event, this really sucks. The turbo assembly will need to be sent out for repair which will probably take some time to get back.

11-25-2007, 07:24 PM	#4 (permalink)
Highrev1 Senior Member Join Date: Mar 2006 Posts: 3,710 iTrader: 1 / 100%	Is that a new Variable Turbo you got there? Sorry to hear about it Blue...Just a basic repair nothing crazy?

11-25-2007, 07:29 PM	#5 (permalink)
*Whocares05050* WHOcaREs05050 Join Date: Oct 2007 Location: SOFLA Age: 22 Posts: 13,109 Mike iTrader: 6 / 100%	Can you tell me WHY your using teflon tape on the oil inlet for the turbo?

11-25-2007, 07:35 PM	#6 (permalink)
jnaut Senior Member Join Date: Jun 2007 Location: west palm beach Age: 30 Posts: 183 jason iTrader: 0 / 0%	where is the teflon you are talking about or am i not seeing all the pics? are you talking about the fitting on the compressor??

11-25-2007, 07:42 PM	#10 (permalink)
*Whocares05050* WHOcaREs05050 Join Date: Oct 2007 Location: SOFLA Age: 22 Posts: 13,109 Mike iTrader: 6 / 100%	^ read above

11-25-2007, 09:22 PM	#11 (permalink)
Tigre Senior Member Join Date: Nov 2007 Posts: 123 iTrader: 1 / 100%	i guaranteed foreign object damage from the fact the each fine carries a similar pattern of damage. also last time i checked gt35 were only repairable by replacing the entire char housing yet another reason i prefer journal bearing....

11-25-2007, 10:12 PM	#12 (permalink)
*07CivicMD* VIP Member Join Date: Jun 2007 Location: Odenton Age: 38 Posts: 1,600 Roger iTrader: 4 / 100%	Sorry to hear blue!!

11-25-2007, 10:20 PM	#13 (permalink)
Si Speed 317 Senior Member Join Date: Apr 2007 Location: Long Island Posts: 3,659 Dan iTrader: 25 / 100%	Ouch, I'll vote for a foreign object entering that bad boy. Simple replacement though.

11-26-2007, 07:44 AM	#15 (permalink)
blueroadster Senior Member Member Join Date: Aug 2006 Location: Maryland Posts: 3,573 iTrader: 7 / 100%	Well, the chewed up fins on the turbo are not the only problem. There is also an exhaust leak on the downpipe itself. One of the welds split in what looks like a 1 inch long hairline fracture. You can see carbon deposits all around the split itself.

11-26-2007, 08:16 AM	#17 (permalink)
Tigre Senior Member Join Date: Nov 2007 Posts: 123 iTrader: 1 / 100%	i use antilag on street cars all the time and nothing will generate more damage than explosions in the manifold and turbine housing and the turbos dont look like that after a year. that sir resembles foreign object damage and its gonna be the first thing Precision says when they see it.

11-26-2007, 10:23 AM	#18 (permalink)
chullen Senior Member Join Date: Nov 2006 Location: Ellicott City Posts: 298 Craig iTrader: 2 / 75%	sorry to see that your turbo is messed up looks like you need a new one. anyway looks like AJP screwed up again with horrible welding

11-26-2007, 10:50 AM	#20 (permalink)
*07CivicMD* VIP Member Join Date: Jun 2007 Location: Odenton Age: 38 Posts: 1,600 Roger iTrader: 4 / 100%	Sorry to hear!! That's going to cost! Let me know if there's anything I can do to help.