What is the saying?... If it isn't for bad luck, I wouldn't have any luck at all.

Well I used to have an atp3071R kit and sold it locally to a guy last friday. Well since I was going back to stock, I decided to make a one last glory pass. I was in 2nd and punched it through, up to 3rd. At the top of third, it felt like something let go. I decelerated and then the car started to stumble. All I could think of was 'at least I am close to the house'. The afr's were normal (10.9 to 11.1), so I immediately think the utec f*cked up again. It happened before, so I thought no big deal. The stumbling issue won't allow the car to build hardly any boost. Well long story short, I park the car at home, and go out with a buddy to Fry's to pick up some stuff. When I get back, I cleaned out a section of the garage to pull the car in. This is where I got puzzled.

I start the car, and it is running great. I take if for a quick ride around the block, and everything is still ok. I start to think that the utec is the problem, but then I get in the boost. At 1.1 bar everthing is good, but once I went up to 1.6 bar, I start having the stumbling issue again. Before the flaming starts, I have a very good tune for 1.6 bar and pump gas. No knock whatsoever, and the afr never goes above 11.1. Anyway I pulled the car in the garage so it could cool down overnight.

In the morning, I drop the oil and rad fluid. No water in the oil, and no oil in the antifreeze. Blow head gasket is off the list. I put the stock turbo setup back on and go for a drive later that night. It seems the problem is now gone. BTW, the utec was removed as well. The only problem is that I am running on wastegate pressure (.8/.9 bar). My inital thought is the head is lifting at boost levels above 1.1 bar. I ordered a hallman, and I will test the theory. Then something else...

I went on a decent drive last night to help the guy I sold the turbo to. He lives around 45 miles away. When i get to his house, my car is making a horible metal on metal grinding like sound. Something new to work with. Now I am thinking screwed up bearing in the turbo (sounds like the area of concern), or a crankshaft bearing.

I called some friends and they said it may be the twin disc chattering. The only problem is that the sound is there on or off of the clutch in neutral. It goes away when I rev the car up and hold it a 2K rpm. Clutch chatter? I have no idea.

Sorry for the long post, but I will end with one final problem (that is being corrected btw). I went to discount tire last week to have my wheels rotated and balanced. Discount cracked my lug key, and used a socket to get the seven sided lugs off. Completely destroyed two of my volk GTU wheels, and scratched the third one.

i have the best luck!!!!

 

BTW left out one thing. The stumbling issue wasn't a boost leak. I checked all of the piping and hoses before I removed the 3071.

Still open for feedback.

 

It isnt the clutch chattering if you can push the clutch in and out without the noise appearing and disappearing. When you let the clutch out it should not chatter anymore.

If the turbo is starting to go your car will smoke a considerable amount.

When you drained your oil were there alot of metal shavings in it? It also could be valvetrain related.

 

No smoke or noise from the turbo this weekend.

There was also no real amount of shavings in the oil.

I only have around 200 miles since I changed the oil on Friday. I am going to drain it tonight, through a strainer with panty hose covering it, to see if I can find any shavings.

On the valvetrain comment, the noise seems to be coming from around the turbo area, around the #4 cylinder, or tranny. It is very hard to tell exactly where.

 

If it is doing it while stopped it is almost definately nothing to do with the drivetrain. It is either valvetrain related or the engine/turbo.

If the car doesnt smoke at all it most likely isnt the turbo... especially if it still hits and holds boost like it always did.

 

that sounds almost like what happened to me (symptoms). Do a compression test and see whats up in the motor. If the cylinders hold pressure...you are happy. If they dont....join me in replacing the pistons!

 

Yea best thing to do is a compression test, at least see if motor is healthy

 

I love Evos. Sorry. Let us know.

 

Symptoms were exactly the same as my engine... gave me another 3000 miles before #3 piston gave out.

 

Well it isn't as bad as I thought...... may need a new turbo, depends on how the wheel looks. Here is a pic of what is wrong.....



A little closer look....




I was at the dealership yesterday, picking up some other parts, when I asked about a new v-band. They told me that they do not carry them. I am going to call around today to try and find one, but I think I may need a stock turbo anyway. I won't be buying one from the dealer though.

Anyone ever seen the vband come off before? I didn't loosen it or anything before.

It's been a quite a string of 'luck'.

 

wow...that is something. Safety wire the next one on......

 

No doubt! I have a buddy here that is going to let me borrow his v-band clamp, but I am still trying to source one as a replacement.

Does anyone know if the stock 05 turbo will fit the 03? I may just buy an 05 turbo and replace this one.

 

Stock 05 turbo will fit an 03 .. and you will benefit from the bigger 10.5t housing!

 

That is what I am hoping for. I tried to do a search of 'stock turbo 05 fit 03', and got an error message. I just thought that I may need an install kit (similar to buschur's 20 g) to make it fit. I guess I was wrong.

 

I think you can buy V-Bands from Napa. Sucks about what happened but at least its not a big deal. Take some pics when you take it all apart. Im curious to see what it did inside there.