K9LTW

KCS

iTrader: (20)

My flange was threaded so I ended up getting some studs from the local hardware store and cut them to length. M12 x 1.75 I think .

kingtal0n

iTrader: (1)

search for something like "10mm T3 & T4 Turbo M10 Inconel Stud Hardware Kit"

"Stud torque spec: 38 Nm +/- 3 Nm
Nut torque spec: Low Limit: 60 Nm / Upper Limit: 130 Nm (95 ft/lbs) after snug tighten to 30 Nm (in sequence)

By using 1.5 (standard pitch) on the manifold side and 1.25 (fine pitch) on the turbo side, the standard pitch thread will stay put in the manifold while the fine pitch 1.25 inconel nut will be easy to remove without dislodging/unthreading the stud from the flange. This works perfectly with your existing turbo manifolds which typically use 3/8-16 hardware (the old industry standard) – all you need to do is run a 10mm x 1.5 tap through the old 3/8-16 threads to chase them and it works perfectly."

K9LTW

etijsma

kingtal0n

iTrader: (1)

Its only $50, $50 is nothing, and those nuts/studs are arguably the most taxed in the entire build.

Less a question of saving $25 and more a question of using the best possible hardware for peanuts.

jdyer00

iTrader: (1)

i bought 2 extra sets id sell one 15 shipped

01ssreda4

iTrader: (96)

I studed i think two holes on mine and cut to length. That turbo has tough clearances if you dont disassemble the whole thing.

truckdoug

iTrader: (25)

i like the idea of people using $50 inconel hardware on chinese turbos

stevieturbo

Use plain and simple mild steel.

Stainless is a **** if it catches and galls up and you need to cut anything free. There should be almost no stress on those bolts at all other than holding the turbo from moving which for 4 bolts....is no work at all.

A locking style nut is always a good idea though, interference style.

as for inconel bolts.....wise the **** up.

rpturbo

iTrader: (47)

Consider the source on the inconel.

Also, use antisieze!!!!!!!!!! The heat cycles on these can make your life difficult later if you don't.

kingtal0n

iTrader: (1)

$50 is nothing. I don't see why its such a big deal, using high quality fasteners, I prefer to overkill wherever possible.
I want 100k out of them and I don't need to worry 8 years down the road. I know somebody patching up cracks in their 10 year old mild steel setup.
Not trying to be that guy.

truckdoug

iTrader: (25)

$50 that can be better spent elsewhere. like at the strip club.
they're ****** bolts dude get a grip

and hell yeah i wanna be that guy patching up cracks in my ten year old hotside. that's ******* awesome to get 10 years out of anything these days.

ElQueFør

pantera_efi

iTrader: (1)

HI ALL, MY first Pantera Twin Turbo KIT included head/manifold EX STUDS AND
ALL S/S hardware. (circa 1973)
The Exhaust studs were 3/8" coarse on the head with the manifold size of 3/8" fine.
The HOT side used "long shank" 3/8" 24 bolt/nut of stainless steel, common grade, to connect the Snail to the Manifold.

AL bolts/nuts/studs were coated with Jet Nut in the thread area.
THIS bit of "tech" is STANDARD for an A/P mechanic.

My customers report to this day, no problems with bolt breakage.

SO I ASK : What material is your head/manifold stud and size ?

Lance

kingtal0n

iTrader: (1)

Oh I forgot you guys don't actually put mileage on ur engines, thats right.


I was like ARP bolts plox? And then I remembered

stevieturbo

You're a ******* moron, get over it.

And not one single OEM fitment use inconel for their bolts, and their vehicles will do more miles than anything you ever dream of building.

01ssreda4

iTrader: (96)

I was just about to say exactly that. Im pretty sure he was dropped as a baby or something.

stevieturbo

And as for longevity etc...I'm sure pretty much every user here doesnt give a damn about a single build lasting for 200k...which regular steel bolts will do anyway.

Because who here would actually build it once and never touch it again for 200k....100k....50k !! None, everyone is always continually modifying and making changes.

This isnt a forum for cars that are never touched or modified.

01ssreda4

iTrader: (96)

Pssh, I cant even go 20 miles without taking something apart it seems like. Length of the lifespan of bolts has literally NEVER crossed my mind.