I just got my T2 swap running after days of trying to figure out what the hell was wrong with it. But. I got a full racing beat 3" exhaust which didnt include a turbo -> downpipe gasket(i didnt know), so i hacked up a piece of my old N/A gasket, and stuck that on there. I dont think its holding up to well though, because as soon as i got the engine running, it started smoking badly from the turbo(i also had a turbo oil line leaking on the turbo, until i tightend it down more) and it sounds really weird, like a go kart or something. Could i just bolt the DP directly to the turbo until i can get a gasket?

 

You can but it will continue to leak. Also, keep in mind that you will have exhaust gasses leaking that are very hot. Not sure if that could have a torch effect down there. Also, it may leak carbon monixide into your cabin. Not good.

www.mazdaformance.com will have you best prices on gaskets. Unless you race then you can use mazdaspeed stuff. Both cheaper than mazdatrix

James

 

I don't run a gasket on mine and it doesnt leak at all, however, you need to make sure that both surfaces have been machined totally flat.

 

Interesting. How much did it cost to machine them?

James

 

well, i started it up without the gasket, its leaking a little but its almost undectectable. i just went ahead and ordered a gasket anyway. $50 though? jesus, why the hell are they so expensive?

 

Where did you order it from?

James

 

mazdatrix

 

That sucks man.....

Didn't you see my post?

I had to replace ALL of my gaskets related to the turbo (Minus engine to manifold). So that is DP to turbo, turbo to manifold, all oil and water gaskets, and new crushwashers. About $90 shipped. mazdaformance.com. Also, Mazdaformance.com is located in Texas so it would be faster to ship.

James

 

No idea mate, got it all done at the same time as doing alot of other fabrication stuff, but it didn't cost much at all.

 

Thats intresting. Learn something everyday

James

 

You could also try some liquid gasket type stuff if you are waiting on the gasket or use them in combination.

 

Resurrection. I've been having tons of trouble keeping my turbo-mani gasket blowing and I needed my turbo bolted down for the weekend at a driving school. I knew the flatness was .005" or less for both surfaces after some light filing. So I bolted it down tight without any gasket and it ran better than ever before, and it hasn't blown after an hour of track abuse, 3 hours of spirited highway driving, and several warm-up/cool-downs. That's longer than any of my gaskets had lasted before. I'll keep running it this way until I see an issue. I will try to get them machined perfectly flat sometime, but otherwise it seems to work well. The biggest concern I had was that if there's a strong afterfire, instead of blowing the gaskets it could hurt the turbo and or the engine, is this actually a likely problem? However, like I said it's stood up to some serious abuse already.

 

You can lead a horse... lol

 

Remember guys, a leak means your o2 or wideband isnt gettting the reading it should

You could use copper high temp silicone, its supposed to work but I wouldnt count on it over a long period of time. I talked to the dude form Permatex and he claims its good for even turbo temps, I dont know if this guy races, but its better than no gasket.

Remember, if you read the directions on the bottle of any silicone, it says to let it cure before final torque. So u bottom it out first, let it cure for 24 hours, and torque it down after.

Its not the best thing to do. However, I will be using a little on my manifold-turbo and turbo-downpipe gasket. I will be using it with the old gaskets, and I wont be using a ton of it

 

To speedoflife:

If you're blowing out gaskets constantly its either one of two things. 1) The mating surfaces aren't flat. 2) Shitty gaskets.

If there's a slight imperfection on the mating surfaces (like say, a little groove for example) the heat will build up in that area while trying to escape through the imperfection and blow the gasket in short order. Have the gaskets typically blown on the same side?

On the topic of copper gasket goop. Heh, try it - lol Doesn't last. Its ******* silicone lol

 

Just saying its better than no gasket. Yeah, I dont expect it to last forever.