Is this normal?
Is this normal?
I have an STS remote mount kit for my 03 G coupe. I noticed some water dripping from the outlet of the turbo. So I took one of the exhaust pipes off to take a look.
I know that condensation builds up in the exhaust and clears up after awhile. My question, is this normal, and will this harm the turbo?
Here are a few pics and a short vid.
I know that condensation builds up in the exhaust and clears up after awhile. My question, is this normal, and will this harm the turbo?
Here are a few pics and a short vid.
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Joined: Oct 2005
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From: NY
Edit:
I haven't looked at mine coz there should be a tube that extend out. FWIW, I never have any experience of droplet or any leak, my turbo look very clean (from the outside). I didn't get my car after Julian finished the install/Tune so that is after a few miles or even a hundred miles of driving. Try driving it first for a few days and see if that eliminate it.
I haven't looked at mine coz there should be a tube that extend out. FWIW, I never have any experience of droplet or any leak, my turbo look very clean (from the outside). I didn't get my car after Julian finished the install/Tune so that is after a few miles or even a hundred miles of driving. Try driving it first for a few days and see if that eliminate it.
Last edited by FI'ed G; Sep 13, 2007 at 09:57 AM.
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From: NY
Do you see droplet from the turbo or from the end pipe? I email STS about this and waiting for their response, you can do the same but I wouldn't worry about it for now as long you are boosting OK.
Now can you give us some detailed review
Now can you give us some detailed review
I will give you guys a review once I figure out all of the kinks. Right now I am having oil scavenge issues and the dyno was very low for what it should be. I am working w/ Vernon to get everything worked out.
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Prior to me going to the tuner the car was running a little rough (low idle, would stall, check engine light which was a random misfire).
When I arrived at the tuner (about 5 miles from my house) it was very hot in the shop (95 degrees) that is one thing against me. Put the car on the dyno (Dyno Dynamics) and found that the car was running a little lean at WOT (on 5psi). The tuner got the AFR worked out and my car put down 291 whp @ 5psi (seemed a little low to me).
After all that the tuner noticed that oil was leaking out of the turbo (NOT the compressor side). He then upped the boost to 9psi and started to work on that. Now here is where I’m confused. The car then put down 344 whp, but at around 5200rpm there was some KR and the power just dropped off (guess due to retarding the timing). We then let the car sit to cool off for an hour or two.
I come back to pick up my car around 7:00pm (I had left the shop @3:30). I talked to the tuner, and to my disappointment he could not get more then 329 whp @ 9psi. He thinks that the turbo is bad. Just my f*ckin luck, what are the chances of a brand new turbo going bad.
Since then I have been talking w/ STS to try and get this resolved (Vernon has been more than happy to assist).
Any feedback would be greatly appreciated.
When I arrived at the tuner (about 5 miles from my house) it was very hot in the shop (95 degrees) that is one thing against me. Put the car on the dyno (Dyno Dynamics) and found that the car was running a little lean at WOT (on 5psi). The tuner got the AFR worked out and my car put down 291 whp @ 5psi (seemed a little low to me).
After all that the tuner noticed that oil was leaking out of the turbo (NOT the compressor side). He then upped the boost to 9psi and started to work on that. Now here is where I’m confused. The car then put down 344 whp, but at around 5200rpm there was some KR and the power just dropped off (guess due to retarding the timing). We then let the car sit to cool off for an hour or two.
I come back to pick up my car around 7:00pm (I had left the shop @3:30). I talked to the tuner, and to my disappointment he could not get more then 329 whp @ 9psi. He thinks that the turbo is bad. Just my f*ckin luck, what are the chances of a brand new turbo going bad.
Since then I have been talking w/ STS to try and get this resolved (Vernon has been more than happy to assist).
Any feedback would be greatly appreciated.
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Joined: Oct 2005
Posts: 2,381
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From: NY
Ok, I dynoed about 305whp on my 4.5-5psi and that was on around low 70's deg weather and around 365whp/378TQ on 8psi. You're at 291 so the weather could've affected that, also I would definitely check for boost/exhaust leak, the rear-mount turbo is very sensitive to exhaust leak. Is this shop familiar with VQ? not sure what kind of timing they were using at high rpm and peak boost. FWIW average power I have seen for non-revup engine is around 348-355whp on 7.5-8 psi. I would stay at around 8psi first before I go for 9lbs, that way you have some room to grow or at least you have room just in case you get some boost creep. If the turbo is bad then how come you're pushing 9lbs? can you give us a graph were you are hitting full boost?
Edit:
You said you maid 344whp at 5200 but then got some knock, so what was the timing and A/F at that time? Are you sure the injectors that came with it are not bad? you said you have some leaning out problem from the get go.
Anyways I got an email from Vernon and he said he's working with already about this problem.
Edit:
You said you maid 344whp at 5200 but then got some knock, so what was the timing and A/F at that time? Are you sure the injectors that came with it are not bad? you said you have some leaning out problem from the get go.
Anyways I got an email from Vernon and he said he's working with already about this problem.
Last edited by FI'ed G; Sep 13, 2007 at 02:23 PM.
Originally Posted by AthenG
Ok, I dynoed about 305whp on my 4.5-5psi and that was on around low 70's deg weather and around 365whp/378TQ on 8psi. You're at 291 so the weather could've affected that, also I would definitely check for boost/exhaust leak, the rear-mount turbo is very sensitive to exhaust leak.
I could be wrong but I’m seeing for boost so I don’t think there are any leaks.
Is this shop familiar with VQ?
The shop I took it to is a repeatable shop which specialize in G’s & Z’s
not sure what kind of timing they were using at high rpm and peak boost. FWIW average power I have seen for non-revup engine is around 348-355whp on 7.5-8 psi. I would stay at around 8psi first before I go for 9lbs, that way you have some room to grow or at least you have room just in case you get some boost creep. If the turbo is bad then how come you're pushing 9lbs? can you give us a graph were you are hitting full boost?
That is what I’m confused about; I should at least be hitting 350whp. When I hit 344 whp, the tuner said if it wasn’t for the knock I would have seen about 370whp.
Edit:
You said you maid 344whp at 5200 but then got some knock, so what was the timing and A/F at that time? Are you sure the injectors that came with it are not bad? you said you have some leaning out problem from the get go.
Anyways I got an email from Vernon and he said he's working with already about this problem.
I could be wrong but I’m seeing for boost so I don’t think there are any leaks.
Is this shop familiar with VQ?
The shop I took it to is a repeatable shop which specialize in G’s & Z’s
not sure what kind of timing they were using at high rpm and peak boost. FWIW average power I have seen for non-revup engine is around 348-355whp on 7.5-8 psi. I would stay at around 8psi first before I go for 9lbs, that way you have some room to grow or at least you have room just in case you get some boost creep. If the turbo is bad then how come you're pushing 9lbs? can you give us a graph were you are hitting full boost?
That is what I’m confused about; I should at least be hitting 350whp. When I hit 344 whp, the tuner said if it wasn’t for the knock I would have seen about 370whp.
Edit:
You said you maid 344whp at 5200 but then got some knock, so what was the timing and A/F at that time? Are you sure the injectors that came with it are not bad? you said you have some leaning out problem from the get go.
Anyways I got an email from Vernon and he said he's working with already about this problem.
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Joined: Oct 2005
Posts: 2,381
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From: NY
Every dyno read different so your best bet is to get a third party dyno (dynojet preferred) so you can compare and make sure it is not 90+deg coz that really affect the #'s. #'s can be also affected on how much timing he's running though every tuner will advice you to rather make power by boost and not by adding timing. Now the million $$ question, are you holding 9psi until redline?
Originally Posted by AthenG
Every dyno read different so your best bet is to get a third party dyno (dynojet preferred) so you can compare and make sure it is not 90+deg coz that really affect the #'s. #'s can be also affected on how much timing he's running though every tuner will advice you to rather make power by boost and not by adding timing. Now the million $$ question, are you holding 9psi until redline?
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