The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

Post a Question

Holset Turbos, PART 7

Please Support Morrison Fabrication

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Status
Not open for further replies.
jusmx141 said:
The bad news is while the nut fell off and went somewhere down below, the bolt is still in there somewhere....whether is passed straight into the exhaust or went backward since you don't have a flapper and went into the turbine housing (hopefully not), it had to gosomewhere.

Maybe you should pull the o2 housing to have a look.
Click to expand...

Well great, way to scare the shit out of me! The hole was clean. There was nothing in there, not even threads. I'm thinking it shot off towards the radiator. There is a hole in my slim fan, but that may just be from the heat. It most definately did not hit the turbine. Turbo works and sounds completely fine.
 
joyfil2001 said:
Just want to put this out there. Out of no where I developed a major exhaust leak under the hood. Come to find out that the bolt plug that goes in the where the wastegate arm should be on my external setup BEP housing was gone. The exhaust gas coming out of there melted my slim fan LOL. So I brought it to Meineke and they welded it shut for me. Anyone else have any issues?
Click to expand...

I had mine come loose a little bit. Mine melted my slim fan without an exhaust leak though. I bought a turbo blanket so I can hopefully run a drivers side fan but I need to weld that hole shut as well because the nut sticks out too much.
 
The bolt can't come through the hole in the housing from inside, or else it would've done that as soon as you started the car.

It's either still lodged in the housing somehow, or it's waiting to make it's way into the turbine housing and pass through the turbine.
 
jusmx141 said:
The bolt can't come through the hole in the housing from inside, or else it would've done that as soon as you started the car.

It's either still lodged in the housing somehow, or it's waiting to make it's way into the turbine housing and pass through the turbine.
Click to expand...

Ok. It happened one day while I was making a pull. The AUTO tranny didn't shift in time and hit the rev limiter. I heard a loud bang (like a backfire) and then all of a sudden I had an exhaust leak...which turned out to be from the turbo. Could that have caused it to blow out?
 
Not to get off topic of what you all are talking about but mine deals with the O2 housing as well. I just ordered a BEP bolt-on housing and am going to utilize an external gate off of the O2 housing. I have read that you need to take material out of the current wastegate passage and am looking for pictures to no avail. Any one have any shots to help me out? Can I just remove ALL of the material in that area or only some?

Didn't realize how much weight the HX40 hotside had. PITA to get it off as well; soaked for 2 days in PB Blaster and had to use the double bolt method to pop off the housing.
 
joyfil2001 said:
Ok. It happened one day while I was making a pull. The AUTO tranny didn't shift in time and hit the rev limiter. I heard a loud bang (like a backfire) and then all of a sudden I had an exhaust leak...which turned out to be from the turbo. Could that have caused it to blow out?
Click to expand...

No, like Justin said there is no way the bolt came out through that hole. It is in your exhaust. What o2 housing are you using? If you have a dumped o2 it may be gone but otherwise it's in there somewhere.
 
1stGenTSi said:
No, like Justin said there is no way the bolt came out through that hole. It is in your exhaust. What o2 housing are you using? If you have a dumped o2 it may be gone but otherwise it's in there somewhere.
Click to expand...

Be safe and take off the turbine housing to at least see if it got lodged somewhere. Pray that it didn't do any damage either. Otherwise, if you have a Cat, see if it's in front of it otherwise it prob. got dumped.
 
LiQUiDx said:
Be safe and take off the turbine housing to at least see if it got lodged somewhere. Pray that it didn't do any damage either. Otherwise, if you have a Cat, see if it's in front of it otherwise it prob. got dumped.
Click to expand...

I don't think you meant to quote me but anyways, no need to take off the turbine housing, just unbolt the o2 housing. You must be running an external off the o2 or the wg hole would've been welded shut. You may be able to just remove the wg and stick a magnet down there and fish it out.

Edit: I guess you could be running a manifold mounted o2 and have the flapper welded shut in which case you'd have to remove the turbo and like shake it around till the bolt came through wg hole into the turbine housing and out the turbine inlet. That would definitely suck.
 
1stGenTSi said:
I don't think you meant to quote me but anyways, no need to take off the turbine housing, just unbolt the o2 housing. You must be running an external off the o2 or the wg hole would've been welded shut. You may be able to just remove the wg and stick a magnet down there and fish it out.
Click to expand...

I'm running my wastegate off the manifold. I have a regular SS o2 housing recirculated. But the wastegate hole on the turbo was welded shut by BEP.
 
joyfil2001 said:
I'm running my wastegate off the manifold. I have a regular SS o2 housing recirculated. But the wastegate hole on the turbo was welded shut by BEP.
Click to expand...

Ouch! Read my edit in the post above. The bolt has no escape route with the flapper welded up. The bolt would have to come out through the turbine inlet. You obviously had the turbo off to take it to get it welded. Maybe it fell out? If it's still there it would most likely just sit there forever but there's a small chance it could go backwards into the turbo like Justin mentioned.

Edit: Nevermind I was picturing things wrong and thought the bolt was trapped. Just pull the o2 housing and it will probably still be sitting in the turbine housing next the the flapper.
 
1stGenTSi said:
Ouch! Read my edit in the post above. The bolt has no escape route with the flapper welded up. The bolt would have to come out through the turbine inlet. You obviously had the turbo off to take it to get it welded. Maybe it fell out? If it's still there it would most likely just sit there forever but there's a small chance it could go backwards into the turbo like Justin mentioned.
Click to expand...

I did not take the turbo off. Meineke dropped the downpipe in order to install studs in the o2 housing for easier tightening. Thats when we noticed the exhaust leak coming from the wastegate arm hole. We shined a light in there and saw nothing. The tech was able to weld it shut on a lift from the bottom of the car. I see what you're saying though that the bolt would still be there, unless it went through the o2 housing and into the downpipe. I will pull it apart when I get the chance.
 
joyfil2001 said:
Ok. It happened one day while I was making a pull. The AUTO tranny didn't shift in time and hit the rev limiter. I heard a loud bang (like a backfire) and then all of a sudden I had an exhaust leak...which turned out to be from the turbo. Could that have caused it to blow out?
Click to expand...
Well, that would be possible if the entire sleeve that the bolt fits through blew out of the housing.
 
Should've been a sleeve with a bolt through it.

Sounds to me like the sleeve, bolt, and all blew out when your car misfired / backfired. Since you aren't running a flapper and you're relying on the o2 housing flange to seal the wastegate hole in the housing, that bolt and sleeve would be seeing pressure.

So there's a good chance I did tack-weld the nut on the bolt on your turbo- it just happens that the sleeve and all were blown out so my welding did nothing.
 
jusmx141 said:
Should've been a sleeve with a bolt through it.

Sounds to me like the sleeve, bolt, and all blew out when your car misfired / backfired. Since you aren't running a flapper and you're relying on the o2 housing flange to seal the wastegate hole in the housing, that bolt and sleeve would be seeing pressure.

So there's a good chance I did tack-weld the nut on the bolt on your turbo- it just happens that the sleeve and all were blown out so my welding did nothing.
Click to expand...

BEP Welded the flapper hole shut, per my request. That is why I am able to use a regular o2 housing. I have been driving it like this for a while, like a month, before finally taking it to Meineke to get fixed. I would think that with the way I drive, if anything was in that turbine housing it would have already damaged the turbine. But there is nothing wrong with the car. Like I said, even with that massive leak I was still able to control boost, and build it fast. Freaking weird. Well I will try to take it apart this weekend just to be sure. PITA
 
Hi guys I just picked up what is supposed to be an HX35. Please let me know if it is!

I cant find any info on the numbers I have on the turbo. Here they are.

3532631 - on the compressor wheel backplate
3530521 - on the center section
12cm twin scroll turbine housing

Wheel sizes

Compressor wheel
56mm inducer
82mm exducer

Turbine wheel
60mm inducer
71mm exducer


Pics of the turbo
You must be logged in to view this image or video.

You must be logged in to view this image or video.


I have some questions about the turbo. I'm new to the holset world. Will it be good for my 2.3l with all supporting mods. I'll update my mod list in here soon. Quick run down is 2.3l, 280 cams, twin fuel pumps, smim, 850cc injectors, etc. The only thing I don't have yet is an exhaust manifold. Still torn on what one I should get.

Would running an open t-3 manifold into the stock holset 12cm housing be ok? Just round out the divider in the turbine housing?

How much power could I expect out of this turbo?

Thanks for any answers to my questions!
 

Attachments

You must be registered for see attachments list
joyfil2001 said:
Just want to put this out there. Out of no where I developed a major exhaust leak under the hood. Come to find out that the bolt plug that goes in the where the wastegate arm should be on my external setup BEP housing was gone. The exhaust gas coming out of there melted my slim fan LOL. So I brought it to Meineke and they welded it shut for me. Anyone else have any issues?
Click to expand...

Yeap happen to me same thing on my bolt on housing form bullseye when I was running a s259
 
joyfil2001 said:
Did it go into the turbine housing, or did it blow out completely?
Click to expand...

yeah when it happen I thought I f### the turbo up. The bolt was in the flex section. I had to pull the exhaust and get it out I didn't want it messing up my wb sensor. was and unexpected pain in the ass. I thought for sure that is should of had a couple of tack welds so this wouldn't happen. Another thing I didn't like about that housing was. The damn bolts that hold the turbine to the manifold would all ways seize I hated that. I would use ant seiz and still the would get stuck. I think the Stainless and the bolts I was using were not meant for each other. I'm glad I went T3 so many more flavors of turbos to choose from when you make the switch.
 
black94dsm, that is an 8blade hx35. It flows 52lb/min. The compressor is good for up to about 500whp i'd say. spool with the t3 manifold will be about 20psi at 3600rpm give or take. You have a stroker and guys spool the stock turbine housing with an open manifold using a 2.0L motor to 20psi by 4000rpms.

Yes, round (radius) the divider.
 
Thanks for the answer dsm-onster!

That's exactly what I was looking forward to hearing.
 
Um, what's wrong with that one? Ebay or junk yard.

Edit:
What is it that you are worried about welding or cutting anyway?
 
Might be a dumb question, but I have a chance to buy a turbo off of a newer style cummins 04-06. I think this turbo is the HE351, just wondering if I am going to have to use the stock exhaust housing and either take the flapper out or weld it shut? I didnt see that the BEP housing will fit this turbo, and kinda wondering if it is a waste of money and I should just get an hx35 off an older cummins
 
Last edited:
Status
Not open for further replies.

Similar threads

Morphius
Holset Turbos, PART 9
8 9 10 11 12
Replies
299
Views
64K
JusMX141
JusMX141
Morphius
  • Locked
Holset Turbos, PART 8
37 38 39 40 41
Replies
1K
Views
168K
Morphius
Morphius
Morphius
  • Locked
Holset Turbos, PART 6
39 40 41 42 43
Replies
1K
Views
153K
Morphius
Morphius
Morphius
  • Locked
Holset Turbos, PART 5
37 38 39 40 41
Replies
1K
Views
163K
Morphius
Morphius
Morphius
  • Locked
Holset Turbos, PART 4
36 37 38 39 40
Replies
999
Views
145K
Morphius
Morphius
Boosted Fabrication
ECM Tuning
ExtremePSI
FIBA Motorsport
Fuel Injector Clinic
Innovation Products
Jacks Transmissions
JNZ Tuning
Kiggly Racing
Morrison Fabrications
Rix Racing
RockAuto
STM Tuned
Support Vendors who Support the DSM Community

Latest posts

Build Thread Updates

Vendor Updates

Latest Classifieds

Back
Top