What broke my turbo??

Ok guys I had a stripped exhaust stud that caused a big exhaust leak. The car seemed to be slower and spool slower also. I figured this was from the leak, but when I took the turbo off today to fix the stud this is what the exhaust turbine looked like.

http://i189.photobucket.com/albums/z173/SilvrEclipse/BlownTurbo.jpg?t=1221004139

Obviously the fins are damaged. It almost looks like they got so hot they melted a little cause the tips are also bent. Every fin on the wheel looks like this so Im thinking nothing went through the turbo and caused the damage. The studder box is set to cut fuel and spark so that shouldn't have done it. The car was shooting flames everynow and then when you would shift after a hard pull. Could this have done it?


Im getting a small 16g and I dont want this to happen to that turbo also.

yea def looks like it melted. Either that or there was some shft play and the whel rubbed against the housing.

If you said you had a broken stud, could cold air or say lean air get in there an cook your blades?
First thing I was going to ask is if any of the blades where missing? You answered that saying no debris is OK, no physical ping-pong damage with a part flying in there making havoc is now would a lean broken exhaust stud sorta set the stoic hot lean in there and she just melted like if you welded straight oxygen, turn off the oxy is pure white heat. The kind that melts when you say lean is a burned melted piston or turbo blade is same-same leAN.
WOT-TA ya think >>> Coming off a Wide OPen Throttle?

No shaft play at all. I have an EGT gauge and I dont let it get over 1600F. Most of the wheel was a whiteish color. I just dont want this to happen to my new turbo when I put it on.

No shaft play at all. I have an EGT gauge and I dont let it get over 1600F. Most of the wheel was a whiteish color. I just dont want this to happen to my new turbo when I put it on.

White like in how the tips of spark plugs get?
You were shooting flames out the exhaust. Since the fire is coming from the motor, it has to go through the turbo. And that was a lot of fire coming out the back. Seems like the blades should be able to handle that, but maybe not. Plus it does have miles on it.

Does any oil leak out on the exhaust side?

Most of the wheel was a whiteish color.
If (lean) oxygen is in the air and say you have that white stuff under an old distributor cap... Wash that enough oxygen in the air to turn white like burn the impurities out of the air and it peppers the blades?

I'm trying to walk your visual is I am not holding parts/moved a loose/tight bolt... or, show us the header where it leaked? Is it directly at the blade sort where the propeller is to the leaking valve is draw a straight line?

Any header tube with a white inner trail? Was that the leaking exhaust port? Trying to eliminate lean condition and then start with oil loss but that blade looks too dry for any kind of oil washout.

The exhaust leak was at the manifold. The car is not running lean at all. The only thing I can think of is that after a hard pull the turbo was so hard and then I would get a loud pop and a flame would come out the exhaust. So fuel is being burned in the exhaust and I guess it put to much heat on the turbine causing the tips of the blades to melt slightly.

So now I guess the question is why is it igniting fuel into the exhaust. I have seen plenty of cars have flames after a hard pull and never heard of it damaging the turbo.

So now I guess the question is why is it igniting fuel into the exhaust. I have seen plenty of cars have flames after a hard pull and never heard of it damaging the turbo.

Are you sure the exhaust cam isn't advanced/retarded at all? You still have it really rich yet or have you leaned it out?

You back off and you hear that pop is cold air hitting hot air is like thunder clouds meeting hot and cold. So, you sorta see the exhaust pulling in that cold air through the header yet?
Something melted and the stoic went off the map.

Timing is dead on and have it tuned to around 11.2-11.0 under full boost.

The noise is not cold air hitting hot air. Its deffinately from fuel burning which is why I get the flame out the muffler.

When guys use NOX, what that happens to be is condensed oxygen. It is what they use for welding is Oxygen. So, when they shoot a shot of too much NOX, it basically is a lot of cold air and that is lean stoic is now welding or placing a hole in the top of the piston if not melting the whole engine down as if you set a torch into the chamber.

You keep coming back quantifying all ignition and fueling is correct. We have an exhaust leak that pulls oxygen into the port is how you keep burning fuel is fresh air emissions down into the exhaust port or exhaust headers to burn more fuel.

Like I said, that is controlled stoic air. Not an uncontrollable WOT the throttle is a possible cause of burned down blades is you keep finding the shaft is perfectly tight. No oil in the turbo crossover into that seal and pump oil into the blades is... Having fun arguing with you as you keep bringing in more evidence all systems go except you ignore that air leak is beats me then.

I think I am out of this thead is I am not about to argue anymore is find the problem and school me on it. Not here to cause trouble and will follow member guidelines is let you know where I am coming from.

But a leak at the manifold won't be pulling in any air. No matter what state the car is in (WOT, idle, vacuum, boost...) there is always exhaust moving, thus pushing it out. So how can cold air be coming into the motor?

spytearbite, you keep talking about cold air coming in, are you talking refering to the exhaust housing or manifold?

spytearbite, you keep talking about cold air coming in, are you talking refering to the exhaust housing or manifold?
And people wonder why I bitch about grammar. I can't understand a thing he's said, so far.

:headshake

If you have a leak at the intake manifold you lean out and the nose of the car drops is you can feel an intake manifold leak.

If air enters the gap between the exhaust header pipe and head port is there is your air leak and that is burning more gas is how you burn the unspent in the pipe is you can see that flame? That is gas burning in a flame you can see. If air is added, you see no flame is the extra air helped burn the fuel is now white hot being you cannot regulate that air leak at the exhaust manifold is what I am trying to communicate.

If you have a leak at the intake manifold you lean out and the nose of the car drops is you can feel an intake manifold leak.

If air enters the gap between the exhaust header pipe and head port is there is your air leak and that is burning more gas is how you burn the unspent in the pipe is you can see that flame? That is gas burning in a flame you can see. If air is added, you see no flame is the extra air helped burn the fuel is now white hot being you cannot regulate that air leak at the exhaust manifold is what I am trying to communicate.

Serious question and don't take this the wrong way... is English your first language?

I just want to know if combustion in the exhaust melted my turbo wheel. The exhaust leak on the manifold was not bad at all when I ran the car hard, the same time when the flames would come.

david-B+ and A's were never on my report card if dats the stats is what you mean.
I am too systems clogged is I am reading more fuel injection abstract and I am a learning a curve is this stuff is pretty basic and I can't understand why I speak with such easy words to walk bye that I've seen 17 passwords lock me out of the high-tech window like this place (locked me out for a few days) is I do not play games is others think I am some kind of poser>Posing as a wrench? I think I am a walking factory service manual is more like what eye have turned into. Fuel Injection to walk me backwards to a jet and a spring moving distributor advance is get the car/bike back up and running is either fuel system.

I am more answering your questions as I walk the physics so you can recognize what I recognize. I bring more fact than you walking what I've already though out is you missed it is my frustration is not my problem just letting off steam on my end.

You are coming back with all your chess pieces in position as if we are about to sit down and play a game of physics. Your car is in perfect running order short of an air leak that might cause a combination of plain old oxygen and fuel in a closed system filled with fuel which if you can see a can of gas in the muffler has been compromised with an oxygen tank sorta understand the physics in the extreme abstract so you visual it in the clear.

I will keep repeating what I think walks your melted blades as you keep walking me all is functioning well with the car and now you add>> catch this... You re-enter oxygen to burn what is a flame in the safe stoic over the blades. That safe stoic (not rich/not lean/not over hot rich/not over hot lean is more or less what is 'neutral stoic'; has been compromised by the fresh air - Got it?

Fresh Air is like re-burning all that unspent and now the fresh spent on the overlap is being burned (with that exhaust leak feeding fresh air to that burn) is now add more over-stoic heat is hot heat (lean) melting heat as if your little oxygen torch tip (is that small at the exhaust leak is it) acts like a torch tip. Are we on the same page is easy speaking english is the complex tech is kind of easy to understand is I keep mixing up the same air leak at the exhaust (was what you said was the leak) is it computes the same post as the last post as before the post before is I think, therefore I am lean is your answer. I meat of the matter is you over-stoic the word safe heat is a blade will last forever if you do not enter more oxygen as a blow torch that is seeping into the exhaust port via the split of the crack?/in the warp state is the exhaust flange?/or loose flange bolts?/or say the burned out gasket? > Is for every reaction the exhaust is moving so fast is you would need a camera to stop action of the tiny spit back in that gap of the exhaust pipe (leak) feeding fresh air into the turbo blade. And that sorta is one variable of a meltdown to your turbo scenario I am thinking out as you say exhaust leak and all systems are functioning properly.

How was that one in, The Queen's Warpage. And you wonder why I own so many password cancellations. No one is understands elementary physics? Not my problem. I am serious and don't take it wrong. Is physics your first subject?

If you have a leak at the intake manifold you lean out and the nose of the car drops is you can feel an intake manifold leak.
.

If you have a leak at the intake manifold (aka a boost leak anywhere after the air is metered) you run RICH.

Is physics your first subject? Ban or die

It seems to me that he is referring to a NA car more than a boosted one.


Anyways there is to much argueing in this thread. If someone can explain to me what happened to my turbo please send me a PM.

Locked.

Ok guys I got a few more opinions and it seems that something has gone through the turbo and chipped the blades. From what I have heard its extremely hard to melt the exhaust wheel.