Turbo Gaskets? - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 04-28-2010, 01:29 PM   #1
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Feb 2009
Location: 94401
Posts: 240
Total Cats: -2
Default Turbo Gaskets?

Ok So im getting ready to put all my turbo parts together and from reading some threads and talking to some people Ive learned that most people don't use gaskets from the turbo flange to the turbo mani. Why is this? What Advantages are there? My parts are not new so should I use a gasket? Or should I get them machined flat and go metal to metal? Or should I use some Hi Temp silicone? Also what about the downpipe do you guys use a gasket there?

Thanks for All your info
proughj is offline   Reply With Quote
Old 04-28-2010, 01:36 PM   #2
Elite Member
iTrader: (8)
 
Join Date: Aug 2007
Location: Bellingham, Wa
Posts: 2,732
Total Cats: 3
Default

They will not last and in some cases gaskets can be sucked through the turbine when they break apart.

Make sure everything is flat and bolt it together. No leaks.
wayne_curr is offline   Reply With Quote
Old 04-28-2010, 01:49 PM   #3
I'm Miserable!
iTrader: (33)
 
Join Date: Jan 2009
Location: San Jose, CA
Posts: 1,066
Total Cats: -3
Default

I use OEM type single layer metal gaskets for both sides of the turbo
If your using a t25 turbo you can buy real OEM gaskets from Nissan
railz is offline   Reply With Quote
Old 04-28-2010, 01:51 PM   #4
Elite Member
iTrader: (10)
 
Join Date: Oct 2008
Location: Seattle, Wa
Posts: 1,780
Total Cats: 30
Default

I'm a bit fan of copper gaskets with an embossed lip and I will be running one on my new manifold. That being said, I currently run a stainless gasket and have yet to have any issues, although it makes me nervous because I've heard the stories about stainless gaskets breaking apart and nuking turbines ( I believe that happened to Bob Bundy).
Jeff_Ciesielski is offline   Reply With Quote
Old 04-28-2010, 01:54 PM   #5
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,196
Total Cats: 2,583
Default

make sure they're flawlessly flat. do not use gasket. if you want 100% peace of mind get some HIGH TEMP GREASE and put some on there before you bolt it together. it will burn up and create a thin layer of carbon between the two metals which is basically a gasket but stronger.

don't use a regular composite gasket
it will fail. ask me how I know
18psi is offline   Reply With Quote
Old 04-28-2010, 02:23 PM   #6
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Feb 2009
Location: 94401
Posts: 240
Total Cats: -2
Default

Ok so time to send it out to the machine shop tomorrow, what about the downpipe are you guys using a gasket there or no?

and 18psi really use grease? not silicone?
proughj is offline   Reply With Quote
Old 04-28-2010, 02:28 PM   #7
Junior Member
iTrader: (1)
 
Join Date: May 2009
Location: TN
Posts: 328
Total Cats: 4
Default

Use copper high temp rtv if anything. You can use gaskets on the cat since it's far enough from the turbo.
southernmx5 is offline   Reply With Quote
Old 04-28-2010, 02:43 PM   #8
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,196
Total Cats: 2,583
Default

Quote:
Originally Posted by proughj View Post
Ok so time to send it out to the machine shop tomorrow, what about the downpipe are you guys using a gasket there or no?

and 18psi really use grease? not silicone?
yup. works like a charm
18psi is offline   Reply With Quote
Old 04-28-2010, 02:46 PM   #9
Senior Member
iTrader: (2)
 
Join Date: Oct 2007
Location: Northeastern CT
Posts: 547
Total Cats: 2
Default

I am using an OE mazda MLSS gasket between the turbine and manifold... no problems at ~23psi. I'm sure you can get a similar item somewhere to fit a garrett turbo. If it works for your head gasket, why not for your turbine??

For the downpipe I am using a solid copper gasket, which has also worked great.

I'd like to replace the MLSS gasket with copper, mainly because the only source for the OE gasket is corksport and they want ~$30 for the damn thing. Only problem is I'd need to make it myself or have it custom made like I did with the downpipe gaskets. Silly mazda and their unique flanges...
therieldeal is offline   Reply With Quote
Old 04-28-2010, 02:52 PM   #10
Elite Member
iTrader: (8)
 
Join Date: Aug 2007
Location: Bellingham, Wa
Posts: 2,732
Total Cats: 3
Default

The turbine flange on my manifold is warped as is the flange on my downpipe yet neither leak. Why add another failure point that is not needed?
wayne_curr is offline   Reply With Quote
Old 04-28-2010, 03:09 PM   #11
Senior Member
iTrader: (1)
 
Join Date: Oct 2008
Location: Trailer County
Posts: 530
Total Cats: -9
Default

Quote:
Originally Posted by southernmx5 View Post
Use copper high temp rtv if anything. You can use gaskets on the cat since it's far enough from the turbo.
High themp rtv works wonders, I use it for the mani, wastegate, and for the downpipe a metal one from EBAY, so far so good.

...

30 bucks yeah it is crazy, what one saves on cheap tranmissions and cylinder heads flips out on particular items.

There is this website I found that wants 130.00 for the passenger racing mount and almost the same for the drivers side. Getting racing parts for Mazda in some cases cost an arm and a leg. Somewhat like the JDM bumpers sold on Corksport...!

At the end of the 30 bucks are spent on the blink of an eye be it eating out or spending it on a bar.

There are some items that CS sells that its unique to them so they can easy sky rocket there prices if one wants to get a hold on some items. Like the saing:

"You have to give from the wing to eat from the breast"

So some items are overly priced while others are ok, to me it is a good deal the brake braided lines they sell, etc.
mazpr is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 59 Yesterday 09:00 PM
WTB MP62 (Hotside) (NB2) Rick02R WTB 3 01-03-2016 08:18 PM
Expected intake temps on the track? tazswing Race Prep 20 10-03-2015 12:04 PM
ISO 1.6 turbo cast iron manifold cale saurage DIY Turbo Discussion 16 10-01-2015 12:25 PM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 03:32 AM.