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

Has anyone rebuilt a T618z yet?

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Old Dec 19, 2006 | 08:54 PM
  #1  
09Factor's Avatar
Thread Starter
Original Turbo 'd Auto !!
 
Joined: Mar 2004
Posts: 2,136
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From: Surprise, Arizona
Has anyone rebuilt a T618z yet?

Now since the Greddy kit has been out for 2 years, I'm asking who has done a inspection/rebuild on the turbo.

I'm after the following info:

Were the Turbo fixes done
https://www.rx8club.com/series-i-major-horsepower-upgrades-93/definitive-greddy-turbo-fixes-here-they-81825/

How much boost run?
hi-flo cat installed?
How many miles before an inspection?
Any end play, side to side play? How much?

How many miles before a rebuild?
What needed to be replaced other than the bearings, thrust plate.
Any cracks in the turbine housing? Where?

Thats all I can think of. I know I missed something.
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Old Dec 19, 2006 | 08:56 PM
  #2  
mysql101's Avatar
⎝⏠⏝⏠⎠
 
Joined: Apr 2004
Posts: 8,625
Likes: 5
From: USA
my turbo was rebuilt by mazsport.

The turbo seals went. All the greddy fixes in place, but no oil restrictor.
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Old Dec 20, 2006 | 08:23 AM
  #3  
guitarjunkie28's Avatar
port hacker
 
Joined: Nov 2004
Posts: 1,275
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From: socal
i had to get one rebuilt. homeboy put 9+ qts of oil in his car and blew out the seals because it wouldn't drain.

another one i had rebuilt even though it didn't need it. got a bigger compressor and clipped the turbine. so while it was apart...might as well spend the $20 on bearings and a new turbine seal just for ***** n' giggles.

i haven't personally seen one fail without being abused though.
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Old Dec 20, 2006 | 08:31 AM
  #4  
zoomzoom_8's Avatar
Registered User
 
Joined: Mar 2005
Posts: 531
Likes: 1
From: Topsail Island, NC
mine failed after three months, needed an oil restrictor i think. no abuse on my part here.
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Old Dec 20, 2006 | 09:51 AM
  #5  
MazsportScott's Avatar
Mazsport.net
 
Joined: Mar 2005
Posts: 753
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From: In the shop
We have been rebuilding and upgrading them for some time now. We just removed a consumer installed unit this morning that was run for about 3 hours and had oil dripping out of the downpipe. When the car arrived I installed a restrictor, cleaned out the exhaust and ran it for about an hour, still dripping. Scott
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Old Dec 20, 2006 | 11:56 AM
  #6  
09Factor's Avatar
Thread Starter
Original Turbo 'd Auto !!
 
Joined: Mar 2004
Posts: 2,136
Likes: 5
From: Surprise, Arizona
Thanks for the info guys.

The question was really aimed at how durable the greddy turbo was.
I know that some of the people on the forum have done the suggested fixes to make the greddy kit better. And some have not.

I really wanted to get a comparison between the two types of users and their experiences with the kit.

I know that Scott has rebuilt these and offers a "upgrade" option and this is a good thing.

What really impacts a turbos life? I know heat, lubrication, sudden pressure surges all cause wear.
Does anyone see a trend at many mi. the turbo starts to fail at?

Thanks
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Old Dec 20, 2006 | 01:52 PM
  #7  
Terrance26's Avatar
8 all the way
 
Joined: Nov 2005
Posts: 340
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From: Killeen, Tx
Mines still run fine, with no restrictor had it for about 4 months now. I figure when it goes out I will just send it down to mazpsport to get it upgraded thats I why I haven't really gone through the trouble of putting in a restrictor yet.
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Old Dec 23, 2006 | 08:24 PM
  #8  
mikeschaefer's Avatar
I wanna rock! Rock!
 
Joined: Jun 2005
Posts: 576
Likes: 0
From: Monterey, CA
lol I wish I had that money to throw around

in the mean time... 1 oz. prevention = 1 lb. cure
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