What causes a turbo to go bad

[Needsoles]

i'm wondering what causes a turbo to go bad? when i put my turbo in 1300 miles ago it was fine but now it has shaft play like a mofo

 

[interex]

high heat, no cooling. bad/cloged oil lines, constant rapid spin up and no proper cool down period. quite a few things actually. I have a 2G stock turbo if you wanna buy it :/

 

[Needsoles]

it had very low miles when i put it on. i always let it spool down and cool down before i shut the car off

 

[interex]

Yea but are you sure the turbo is cooling off properly, or is staying cool?

 

[Needsoles]

how can you tell?

 

[interex]

make sure there is oil flowing for one. it sounds to me like the turbo might have been dry when you started using it. did you prime it? if it got really hot the bearings might have worn really bad.

 

[ilikespeeding]

how can you tell?

If you just counted to 30, it's fine. You wouldnt happen to have a PTE turbo would you?

 

[interex]

If you just counted to 30, it's fine.

erm what exactly does that mean?

 

[ilikespeeding]

erm what exactly does that mean?

After your car stops, count to thirty, then shut if off. Good rule of thumb if you dont have a turbo timer.

 

[interex]

ooooh, you didnt exactly clarify what you meant, but yea that I understand now

 

[Needsoles]

i don't remember if i primed it. so that would cause it to go bad?

 

[interex]

I'm not sure exactly if priming it is a serious thing... But I'm just trying to help figure it out as much as you

 

[ilikespeeding]

I'm not sure exactly if priming it is a serious thing... But I'm just trying to help figure it out as much as you

It depends. If you started the car and hit the gas right away, it WILL kill or damage most turbos. But, if you didnt hit the gas, then no. This happens after oil changes all the time.

 

[silver bullit]

NOT really but depends on the clearances in the turbos, maintenance, oil, tune, a/f ratio, parts used etc...

 

[rarson]

Who gets in their car and gets on the gas right away? Am I the only person disciplined enough to wait until the car warms up before I start moving? I do this EVERY TIME I take the car anywhere, even if it's just down the road to put the trash out. Not for the sake of the turbo, but for the engine.

And this 30 seconds business is silly. It's a water-cooled turbo. As long as you take it easy for the last 5 minutes or so of driving, you'll be fine.

My guess is you had major oiling issues.

 

[ilikespeeding]

Who gets in their car and gets on the gas right away? Am I the only person disciplined enough to wait until the car warms up before I start moving? I do this EVERY TIME I take the car anywhere, even if it's just down the road to put the trash out. Not for the sake of the turbo, but for the engine.

And this 30 seconds business is silly. It's a water-cooled turbo. As long as you take it easy for the last 5 minutes or so of driving, you'll be fine.

My guess is you had major oiling issues.

You'd be surprised how many people do it. Yes, I think you are the only person that sits there. I dont bang on it, but I do drive. That's more for the tight clearance race motors.

He never said what kind of turbo he had. How do you know it's water-cooled?

 

[rarson]

Yes, I think you are the only person that sits there.

I don't sit in my car, I just start it before I have to leave.

He never said what kind of turbo he had. How do you know it's water-cooled?

Why would you put anything besides a water-cooled turbo on a DSM?

 

[ilikespeeding]

Alot of the bigger turbos are oil cooled alone.

 

[rarson]

Like which ones?

 

[SpyderDSM]

Like which ones?

doesnt even matter until you know what turbo Needsoles is running does it?

+1 either way im assuming its water cooled too.

 

[ilikespeeding]

Like which ones?

Like he says, it doesnt matter unless he has an oil cooled turbo. But just as an FYI, the big journal bearing turbos are only oil cooled.

The only way to figure out what happened is to pull the turbo.

 

[rarson]

WHICH POPULAR DSM TURBOS ARE ONLY COOLED BY OIL? Way to avoid the question! The reason I'm asking is because you're making blind statements that don't make any sense. Yes, I know it doesn't matter when we don't know what turbo he's running. So since 95% of the DSMs out there are running water-cooled turbos, why the hell shouldn't I assume he's running a water-cooled turbo?

Like I said, I think the issue was oiling. Cooling problems usually end up in coking anyway.

 

[ilikespeeding]

WHICH POPULAR DSM TURBOS ARE ONLY COOLED BY OIL? Way to avoid the question! The reason I'm asking is because you're making blind statements that don't make any sense. Yes, I know it doesn't matter when we don't know what turbo he's running. So since 95% of the DSMs out there are running water-cooled turbos, why the hell shouldn't I assume he's running a water-cooled turbo?

Like I said, I think the issue was oiling. Cooling problems usually end up in coking anyway.

You know when most DSMs break 8s they drop the radiator and block off the coolant passages right? You might want to look into what turbos people like shepard are running (GT42R right?) and Brent Rau are running.

Grow up and stop jacking people's threads.

 

[Supa Dexta]

My garrett 50 trim was oil only, and my new borg 362, oil only..

Oil pressure is very important, as is having it clean.

 

[whitetsi95]

Wow this thread went south. Back on topic. If it's water cooled whats some things that could make it go bad? If it's oil cooled what are something that would make it go bad?