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Sound of stock twins dying?

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Old 01-12-03, 08:23 PM
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Sound of stock twins dying?

I have heard people refer to the sounds that come out of the stock twins when they are dying. What does it sound like? Are dying turbos always accompanied with oiling the intake as well?
Old 01-12-03, 08:59 PM
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Sometimes I think I hear the twins talking to me, is it hot in here or am I crazy?
Old 01-13-03, 03:31 PM
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No descriptions except for some nut who forgot to take his meds?
Old 01-13-03, 03:40 PM
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DUUUUUUUUUUDE WHERES MY BOOST!!!
Old 01-13-03, 03:50 PM
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Re: Sound of stock twins dying?

Originally posted by DamonB
I have heard people refer to the sounds that come out of the stock twins when they are dying. What does it sound like? Are dying turbos always accompanied with oiling the intake as well?
I've never heard anyone say there was a sound associated with turbos going bad. I've heard that there are sounds that can be associated with turbos being rebuilt improperly (hearing a metal sound instead of the normal wind whistling sound).

I think most people just notice the turbos blowing/burning oil and less boost.
Old 01-13-03, 06:32 PM
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Manute,

my original turbos were definitely shot--after pulling the motor, when I tipped the UIM on it's side, about a quart of oil poured out! I also had lotsa oil in my M2 large endtanks. But the damn things boosted fine to 15psi until the day I pulled the motor. What issues are you having? Contact Steve, he knows a thing or two about turbos

Your friend 'til the end,
Spud
Old 01-13-03, 08:11 PM
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Thanks Rich. My turbos just quit boosting properly after another trip to MSR with Eric 2 weeks ago. Went from 11-9-11 to 10-7-7. I went through the whole dang car yesterday verifying no leaks, all solenoids and actuators functional, etc.

Just pulled the main cat and poured out a couple handfulls of briquets and a wad of steel mesh. I think I located the problem
Old 01-13-03, 08:16 PM
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Originally posted by DamonB
Thanks Rich. My turbos just quit boosting properly after another trip to MSR with Eric 2 weeks ago. Went from 11-9-11 to 10-7-7. I went through the whole dang car yesterday verifying no leaks, all solenoids and actuators functional, etc.

Just pulled the main cat and poured out a couple handfulls of briquets and a wad of steel mesh. I think I located the problem
Lol....well, I have my Bonez high flow cat that I just pulled out in favor of a midpipe; lemme know if you're interested .
Old 01-13-03, 09:21 PM
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CRAP! My turbos are making really nasty noises. It sounds like the bearings maybe, I'm not sure, but I get no boost and it makes this scraping sound that sounds like metal to metal contact, they have never been rebuilt and have 88,000 miles on them. What do you guys think it is? And do you think it's possible to rebuild them still?
Old 01-13-03, 11:11 PM
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Might be thinking of the death whine that Supra owners report...
Old 01-13-03, 11:49 PM
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There has been alot of oil coming out of the intercooler hoses, etc. it goes all over the top of the intercooler and top of the air box and even shoots up to the hood. my car hasn't boosted past 7 lbs in quite some time. could by turbos be gone?

if so, how much will it cost to fix this problem..

thanks in advance

chris
Old 01-14-03, 09:34 AM
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Originally posted by DamonB
No descriptions except for some nut who forgot to take his meds?
Old 01-14-03, 11:53 AM
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Originally posted by DamonB
My turbos just quit boosting properly after another trip to MSR with Eric 2 weeks ago. Went from 11-9-11 to 10-7-7. I went through the whole dang car yesterday verifying no leaks, all solenoids and actuators functional, etc.

Just pulled the main cat and poured out a couple handfulls of briquets and a wad of steel mesh. I think I located the problem
I think you should stay away from the MSR for a while, first an engine fire, and now turbo/cat problems.

Sounds like that place has it in for you

If you need a stock CAT to maintain your SCCA class legality, let me know, as I might have access to a used one cheap.

Good luck!

Last edited by Vintage Red Touring; 01-14-03 at 12:01 PM.
Old 01-14-03, 11:59 AM
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I think mine were screaming, "help me, help me" today.
Old 01-14-03, 12:06 PM
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Originally posted by RX7SpiritR
CRAP! My turbos are making really nasty noises. It sounds like the bearings maybe, I'm not sure, but I get no boost and it makes this scraping sound that sounds like metal to metal contact, they have never been rebuilt and have 88,000 miles on them. What do you guys think it is? And do you think it's possible to rebuild them still?
That lovely scraping sound is the impeller rubbing inside the housing. That is how my primary died (about 45k miles), the intake side impeller started moving around and from rubbing in the housing it lost about 1/8 inch off each blade. The housing still feels smooth and I am sure they can be rebuilt but instead I just bought a used set. My current set now has about 140k miles, they boost great, dont leak, and blow very little oil into the intake.
Old 01-14-03, 12:13 PM
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Originally posted by Vintage Red Touring
If you need a stock CAT to maintain your SCCA class legality, let me know, as I might have access to a used one cheap.
Thanks, David. I just bought one from a member here. Too bad you couldn't join me a few weeks ago. You got the message I left?
Old 01-14-03, 01:01 PM
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Originally posted by RX7SpiritR
CRAP! My turbos are making really nasty noises. It sounds like the bearings maybe, I'm not sure, but I get no boost and it makes this scraping sound that sounds like metal to metal contact, they have never been rebuilt and have 88,000 miles on them. What do you guys think it is? And do you think it's possible to rebuild them still?
Yep. Impeller shaft has gotten loose (probably the carbon seal) and the impeller is busy digging itself a groove into the compressor housing. If you're getting ZERO boost, I'd say your turbos are REALLY hosed.

As far as rebuilds go ... well, search on that topic. We've gone through that topic one too many times. Short synopsis: don't even bother, buy new.
Old 01-14-03, 01:02 PM
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Damon,

My wife told me you called, but I was in Arizona from 1-3-03 through 1-8-03, so I would not have been able to make it. Please keep me posted of any future MSR events, as I am hooked!
Old 01-14-03, 01:41 PM
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Originally posted by Vintage Red Touring
Damon,

My wife told me you called, but I was in Arizona from 1-3-03 through 1-8-03, so I would not have been able to make it. Please keep me posted of any future MSR events, as I am hooked!
I'll second that. My beast is back on the road, so keep an eye on your rearview mirror, Manute
Old 01-14-03, 02:24 PM
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My beast is back on the road
Thats the first time in a while I've heard that comment. Usually, it's the opposite.
Old 01-14-03, 05:26 PM
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Dam, I hope nothing happens to DamonB's FD.

If he gets pre-occupied with something else then I'll never get that subwoofer enclosure.......
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