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Series I Major Horsepower Upgrades This is the place to discuss Super Chargers and Turbos, Nitrous, Porting, etc

Anyone upgrade the turbo on Greddy kit yet?

Old Oct 29, 2007 | 03:46 PM
  #26  
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From: Denver
Originally Posted by MazdaManiac
Or January or February...

I'm still in the middle of a bunch of other junk, Dave. I'm leaving for SEMA tonight, so I'll give you a call when I'm heading north and try to swing by your way.
Well, if you can't help me then I may just do it myself and have some help from Shawn and others. He has a friend who can do the aluminum welding, I just need help with clocking the w/g actuator bracket.



Originally Posted by mysql101
I don't idle very long. But I stay out of boost the last 5 minutes of my trip before I park the car.

I've been using this turbo for 13k miles btw. And the smoking doesn't happen all the time. Randomly it does it.... maybe 5x so far, but it's a lot of smoke.
Are you sure you don't have a small oil leak that may be dripping oil on your hot exhaust manifold or turbine housing? That would cause it as well.
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Old Oct 29, 2007 | 03:49 PM
  #27  
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no oil leak at all. I used to have one with the RB adaptor, but it's been pulled off the car, and there's no oil on the floor in my garage even after it's sat around for days. The smoke doesn't come out right away or anything either. It takes a bit at idle before it starts. Once I start driving it's gone and usually doesn't return.
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Old Oct 29, 2007 | 03:59 PM
  #28  
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From: Under my car
Originally Posted by mysql101
no oil leak at all. I used to have one with the RB adaptor, but it's been pulled off the car, and there's no oil on the floor in my garage even after it's sat around for days. The smoke doesn't come out right away or anything either. It takes a bit at idle before it starts. Once I start driving it's gone and usually doesn't return.
Yeah, I've been there and done that several times with both turbos.
It is a result of the outrageous heat soak that the bearings must withstand having the turbo positioned where it is.

Its embarrassing. You are sitting there at a long traffic light and everything is fine.
Then, suddenly, there is a massive cloud building.
Then, it goes away and doesn't happen again for a few hours, days or even weeks.

Originally Posted by chickenwafer
Well, if you can't help me then I may just do it myself and have some help from Shawn and others. He has a friend who can do the aluminum welding, I just need help with clocking the w/g actuator bracket.
Cool. You'll get it done a lot sooner that way.
I don't even have time to do my own conversion until the spring.

Last edited by MazdaManiac; Oct 29, 2007 at 04:04 PM.
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Old Oct 29, 2007 | 04:04 PM
  #29  
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so does that mean my bearings need to be replaced? or is this just a cooling issue?
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Old Oct 29, 2007 | 05:25 PM
  #30  
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From: Denver
Originally Posted by mysql101
so does that mean my bearings need to be replaced? or is this just a cooling issue?
Probably both.

The turbo is in a crappy location sitting down there in the first place, which lends itself to getting your bearing cooked because of the high heat.

That's yet another plus the Garrett GT2871R; it's water cooled, so you have coolant helping to keep the CHRA cool.

Sometime next year I may experiment with installing some kind of duct or panel to direct more airflow to the turbo or evacuate more air from the turbo area.
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Old Oct 29, 2007 | 06:09 PM
  #31  
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From: Under my car
Originally Posted by mysql101
so does that mean my bearings need to be replaced? or is this just a cooling issue?
Probably the bearings.
Just pull the downpipe and give the turbine shaft a wiggle.
If it moves more than .5mm or so all the way around, they are done.
It'll probably more a lot more than that.
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Old Nov 16, 2007 | 06:45 PM
  #32  
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Wait a minute.

How are you going to bolt a Garrett turbo to a Mitsubishi manifold?
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Old Nov 16, 2007 | 07:06 PM
  #33  
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Because it is a T-25 style inlet, common to both and the discharge is a standard 5-bolt outlet.
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Old Nov 17, 2007 | 11:10 AM
  #34  
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From: Denver
Originally Posted by arghx7
Wait a minute.

How are you going to bolt a Garrett turbo to a Mitsubishi manifold?
quite easily
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Old Dec 19, 2007 | 11:21 AM
  #35  
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Originally Posted by MazdaManiac
Probably the bearings.
Just pull the downpipe and give the turbine shaft a wiggle.
If it moves more than .5mm or so all the way around, they are done.
It'll probably more a lot more than that.
your say the bearings are easy to replace?
ive been looking around for replacment bearings for my greddy turbo and havent found any yet.
where might i find them?
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Old Dec 19, 2007 | 11:48 AM
  #36  
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A turbo rebuild shop should have them.
There are three shops right here in Phoenix that have them behind the counter.
Its about $20.
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Old Dec 19, 2007 | 12:37 PM
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From: Wiscansin
Originally Posted by MazdaManiac
A turbo rebuild shop should have them.
There are three shops right here in Phoenix that have them behind the counter.
Its about $20.
problem..i live in wisconsin
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Old Dec 19, 2007 | 01:10 PM
  #38  
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There is nothing wrong with Wisconsin. Well, maybe.
There should be a turbo shop somewhere.
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Old Dec 19, 2007 | 02:35 PM
  #39  
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From: Wiscansin
Originally Posted by MazdaManiac
There is nothing wrong with Wisconsin. Well, maybe.
There should be a turbo shop somewhere.
not sayin theres anything wrong with wisconsin. the snow keeps me from diving my 8 year round...and god knows if i lived in a southern state id be driving her all the time
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