xRoguex

iTrader: (15)

Does anyone know of a stainless steel, stud that will work in the turbo to manifold spot?

I just cringe at the point of putting a swaintech coated JMFAB manifold, on a Swatintech coated FP SS housing... but having those rusty *** studs there.

I currently have the ARP manifold to head kit, and it is WONDERFUL.

Any help is appreciated!

xRoguex

iTrader: (15)

No one?

MinusPrevious

iTrader: (3)

SST does not have the strength of your typical high strength carbon steel grade 5 or 8 bolt (Google it for more detail)

Consider using anti-seize on those bolts prior to assy

xRoguex

iTrader: (15)

They came apart just fine - just dont like the look of them. Blah

mt057

iTrader: (6)

I had SS bolts seize between my turbo and manifold. It was a PITA to get them apart. Ended with a machine shop having to drill out the bolt when it broke.

Jaraxle

I had the OEM studs/bolts looked at by an engineer at my job who does this type of thing for a living. I learned two things:
1.) Mitsubishi doesn't give a crap about following industry standard bolt markings (the bolts have a "II" on them), and instead are following their own WWII era proprietary marking.
2.) Those studs/bolts are made out of some crazy awesome exotic material, designed for HEAT.

You do NOT want to replace those with some random stainless steel stud or bolt. Period. Buy new OEM ones.

LetsGetThisDone

iTrader: (1)

Yeah, mani to turbo use OEM. They are some variant of stainless, strong and not magnetic.

Evo8cy

High grade stainless steel studs will be fine, poor grade won't. The oem ones are made out of a tool steel grade. If you can use oem ones then use oem.








Marios

barneyb

Mazda uses stainless steel nuts on their exhausts. There's two ways to remove them, nutcracker or torch. They gall and then being harder than other metal, remove all threads. I suggest a stainless steel stud would do the same.

xRoguex

iTrader: (15)

I guess thats the route I am going.. Just a shame they will look like **** in 12 months..

kikiturbo

cheapest way to a high spec turbo to manifold stud is to get OEM evo X studs which are inconell... much cheaper than aftermarket stuff..

xRoguex

iTrader: (15)

not to sound - rude .. but do you have any proof of that? I never heard that one before.

kikiturbo

I was tearing apart the turbo on a friends X and noticed the studs were non magnetic... hence inconell, or some other similar high temp alloy.. Boght them for my efr manifold..

edited in.. part nr. MN119784

LetsGetThisDone

iTrader: (1)

Was just about to say, full race has Inconel turbo to mani hardware. I'm not sure if the EvoX studs are Inconel or stainless, but I can definitely confirm they are not magnetic. None of the OEM turbo hardware is actually; nuts, washers, bolts, and studs.

xRoguex

iTrader: (15)

do i need 10mm or 8mm studs for a stock twin scroll