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Brando
 
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Quote:
Originally Posted by Rodsrsr View Post
Sorry to hear about this. Your having a bad year. First the 915 now this.
Yeah, the 915 is my fault.
This is not. I don't go high boost because of the 915 and this turbo should be able to handle much higher boost anyway.
I still need to remove the turbo and inspect it. What could cause premature failure on a BB turbo? It has oil, what else does it need?
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Turbo powa!
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Old 11-05-2013, 09:07 AM
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Chain fence eating turbo
 
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Yeah, that turbo is easily running at 1/3rd of its potential. Sure the turbine is .60 AR? You know mm size of turbine wheel?
Old 11-05-2013, 10:07 AM
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Brando
 
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Turbine is .84 compressor is .60 ar. Turbo speak is another language for me. I don't have time for it. Just want a good turbo and bolt that som***** up.
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Old 11-05-2013, 10:46 AM
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I would look into borg warner s256sx
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Carrera 3.0 1975
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Old 11-05-2013, 12:33 PM
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Brando
 
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Quote:
Originally Posted by jsveb View Post
I would look into borg warner s256sx
Been studying this issue as I use my car as a daily driver and don't enjoy my truck.

Seen a comparison of these turbos and here is what it looks like.
BW turbo is heavy and big.
Cheaper price with apparent good reliability.
Makes slightly more power but I'll never see it until I go g50 or 930 gearboxes.
Slower boost response by 400 rpm.
Changes to my oiling system etc.


I still need to check to see if this issue is me related. But if it's not me related, I think it's way too soon. My car is not over stressed, my gearbox and tires are, but the engine and turbo are not.
Do I let it cool properly? Yes I do, The last couple miles are coast cool down driving both ways, to and from work. On runaround errand drives, there are less cool down times, but those are not as frequent.
I don't know, maybe I need a turbo timer.
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Turbo powa!
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Old 11-05-2013, 03:30 PM
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I thought the Holset were big and the BW S200 series not too big. I guess I need to read up on that, again.
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Jesper
Carrera 3.0 1975
930 1978 OEM Matte Schwartz, ANDIAL IC, BL WUR, SC cams. LMA-3 w. XD-16 and CP transducer
www.stauningwhisky.dk
Old 11-05-2013, 04:32 PM
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Chain fence eating turbo
 
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What flange do you have on the turbine? 4-bolt OEM or V- band?
Old 11-05-2013, 04:38 PM
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Brando
 
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4 Bolt, but I have a v-band adapter so I'g like to get a new one with v-band
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Old 11-05-2013, 05:42 PM
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Brando, I think you should forget the Garett, Holset and BW turbochargers and go with the latest from GE (if you think it will provide enough boost for your needs)!!!

Old 11-05-2013, 05:56 PM
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BW's have oddball v-band flanges and Holsets won't have a useable turbine more than likely plus they're internally waste gated making them very wide.

Not sure how much effort and money you want to invest in a BW or Holset but it can be done with both.
Old 11-05-2013, 07:19 PM
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Quote:
Originally Posted by Tippy View Post
BW's have oddball v-band flanges and Holsets won't have a useable turbine more than likely plus they're internally waste gated making them very wide.

Not sure how much effort and money you want to invest in a BW or Holset but it can be done with both.
What do you mean by odd ball? Size wise. Or flange type?
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Jesper
Carrera 3.0 1975
930 1978 OEM Matte Schwartz, ANDIAL IC, BL WUR, SC cams. LMA-3 w. XD-16 and CP transducer
www.stauningwhisky.dk
Old 11-05-2013, 07:59 PM
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Size
Old 11-05-2013, 08:30 PM
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Brando
 
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I went to rush with my wife tonight. No pcar info yet. Tomorrow most likely.
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Turbo powa!
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Old 11-05-2013, 10:11 PM
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Brando
 
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Here is a couple videos of the turbo after I removed it and disassembled it. It's bad. And I'm not sure why.


Last edited by quattrorunner; 11-07-2013 at 10:10 AM..
Old 11-07-2013, 09:05 AM
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Brando
 
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And one while still in the car running showing oil flow. Note the ball bearing turbos don't want as much oil as journal bearings. Look at that wheel movement, terrible.

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Turbo powa!
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Old 11-07-2013, 10:08 AM
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By the looks of the videos, it seems the compressor blades are shaved ( as you say in the video) from touching the housing. Whereas the turbine seems to have been impacted by something on the inner section of the turbine. Maybe it is FOD from the headers?? This could quite possible mess up the bearings and cause the compressor damage.

Sad for sure. The good thing is, the compressor did not disintegrate and inject parts into the intake. It seems.
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Jesper
Carrera 3.0 1975
930 1978 OEM Matte Schwartz, ANDIAL IC, BL WUR, SC cams. LMA-3 w. XD-16 and CP transducer
www.stauningwhisky.dk
Old 11-07-2013, 11:00 AM
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Brando
 
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Quote:
Originally Posted by jsveb View Post
By the looks of the videos, it seems the compressor blades are shaved ( as you say in the video) from touching the housing. Whereas the turbine seems to have been impacted by something on the inner section of the turbine. Maybe it is FOD from the headers?? This could quite possible mess up the bearings and cause the compressor damage.

Sad for sure. The good thing is, the compressor did not disintegrate and inject parts into the intake. It seems.
By looking at the wheel, it looks more like all blades look similar, like the same shape contact and it looks like probably the housing side. The movement was that bad.
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Old 11-07-2013, 03:32 PM
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You just had a bearing failure plain and simple on the turbine side. The damage to the wheels was the aftermath.
Old 11-07-2013, 04:41 PM
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Ok, it's toast, you were right.
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Old 11-07-2013, 05:49 PM
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Brando
 
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Normally I get excited when I need a new toy and I get to shop. But not this time. I was pretty attached to this turbo. Liked it a lot. I feel let down, confused, almost like I would feel if my wife was stepping out. I'm serious, I know it sounds ridiculous and it's only a turbo but I've been swinging for this lump for a while and jonesing for a turbo of this caliber for like ever. Now I have it and it's not what I thought. I mean it was till it stepped out, cheated in me.
That dirty rat!
Well I'll show it, I don't need that prom queen. I'll go for something I can count on. I'll get someone from band. She'll never leave me. She'll just keep on giving and giving. And I'll learn to love her too. You'll see.
I'll let you know who I bring home next. She may not be as pretty, but you can bet she'll be reliable.
Stay tuned.
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Turbo powa!
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Old 11-07-2013, 10:12 PM
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