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Thread: Inconel studs and Copper nuts for turbo applications

  1. #1
    Bannered takai's Avatar
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    Inconel studs and Copper nuts for turbo applications

    I notice that inconel studs and copper nuts are somewhat more accessible these days than they used to be.

    Is it worth running them on a mid range turbo car, or just overkill?
    Chris
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  2. #2
    are hairy Dogsballs's Avatar
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    I used inconel on my bigger Barra high mount setup now. Copper always seemed to come undone on factory low mount

    Sent from my HTC One M9 using Tapatalk
    Quote Originally Posted by 50RTD View Post
    Dave, have you uploaded the data from the carby?

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    Registered User dougmo's Avatar
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    lockwire is all you need

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    Nordlock washers

  5. #5
    Unregistered User Permit Roadsailing's Avatar
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    weld the thing to the other thing

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    Gas Turbine enthusiast da9jeff's Avatar
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    K nuts or any similar type of deformed nut is the go for hot bits.

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  7. #7
    Bannered takai's Avatar
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    Never had much luck with washers, just wind out the entire stud instead.

    Anyone used these things:
    Chris
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    I never saw a wild thing sorry for itself. A small bird will drop frozen dead from a bough without ever having felt sorry for itself. - D.H.Lawrence

  8. #8
    are hairy Dogsballs's Avatar
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    Aren't they nordlocks like mentioned above

    Sent from my HTC One M9 using Tapatalk
    Quote Originally Posted by 50RTD View Post
    Dave, have you uploaded the data from the carby?

  9. #9
    Unregistered User Permit Roadsailing's Avatar
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    Quote Originally Posted by Dogsballs View Post
    Aren't they nordlocks like mentioned above

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    Nope. Nordlocks are much different.

    https://www.nord-lock.com/shop/priva.../how-it-works/

  10. #10
    Bannered takai's Avatar
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    Nord locks are serrated cone washers. But if the stud starts winding out then you lose all tension on the washers anyway.

    The Stage8 fasteners above should stop the stud from winding out too as it will bottom out on the nut.
    Chris
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  11. #11
    [DIRTY31] lysdexia's Avatar
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    nord locks aren't cone washers, they're 2 piece serrated washers with inclines between them.

    with nord locks the stud can't start to wind out unless something goes horribly wrong, or you've used them incorrectly (you can't use any other washer in conjunction with them).
    Quote Originally Posted by Mr Jones View Post
    Farmer its all about how you cut them up, like a dead hooker jigsaw puzzle.

  12. #12
    \_(ツ)_/ burn is weird's Avatar
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    I did the works with inconel studs and copper locking nuts (a kit from GCG I think. was about 70 bucks) and nordlock washers. cost 80 bucks for all the bits for the flange.

    turbo still attached. would bang again.

    the secret with nordlock washers on a stud is the stud thread pitches must be LESS than the ramp angle of the nordlock washer or it can wind itself out, that way if it starts to loosen, it actually clamps the stud tighter.

    Last edited by burn is weird; 30-04-19 at 10:15 AM.

    Oo___oO


  13. #13
    PF's #1 soft roader advocate Captiva Fan's Avatar
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    Quote Originally Posted by 1320ft View Post
    Nordlock washers
    These were the only things that could get my entire hot-side to hold together.
    Soft roaders represent an excellent compromise between the needs of the hardcore 4x4 user and the convenience of a city hatchback. Its clear to see why they have become so popular in todays society.

  14. #14
    Registered User AlexinPerth's Avatar
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    I've not tried the nordlocks, but the things that made a difference for me were:

    Preventing the exhaust from hitting the body

    Using the Nissan lock plates

    Lockwiring the nuts to the lock plates


    There must be a trick that the OEMs use to assemble these things, as they seem unreliable once undone from factory.

  15. #15
    \_(ツ)_/ burn is weird's Avatar
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    I bought my nordlocks from Anzor Fasteners. they were around $3.00 each for 316 stainless M10 (turbo flange) and $2.50 for M8 (manifold flange) from memory

    https://www.anzor.com.au/washers/nor.../316-stainless

    other option is from RS-online, they sell Heico ones in bags of 10

    https://au.rs-online.com/web/c/faste...468,4293772009
    Last edited by burn is weird; 02-05-19 at 08:56 AM.

    Oo___oO


  16. #16
    Purist, whats that? Jason Broadhurst's Avatar
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    Quote Originally Posted by AlexinPerth View Post


    There must be a trick that the OEMs use to assemble these things, as they seem unreliable once undone from factory.
    They do that with engine internals too LOL
    Jason Broadhurst

    Someone once asked me if they could use my mower. I said "sure, so long as it doesn't leave my yard"

  17. #17
    Gas Turbine enthusiast da9jeff's Avatar
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    Pretty sure it's just deformed nuts. They wear out with each use, stick fresh ones on and torque to spec, job done.

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  18. #18
    [DIRTY31] lysdexia's Avatar
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    Quote Originally Posted by AlexinPerth View Post
    Using the Nissan lock plates
    this is my favourite way to make sure they stay done up personally
    Quote Originally Posted by Mr Jones View Post
    Farmer its all about how you cut them up, like a dead hooker jigsaw puzzle.

  19. #19
    Registered User dnegative's Avatar
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    Quote Originally Posted by AlexinPerth View Post
    There must be a trick that the OEMs use to assemble these things, as they seem unreliable once undone from factory.
    Its a modified car thing, I do shitloads of turbos and use regular looking nuts and washers and they dont come loose, leak or fall off. Nip em again after a heat cycle and send the cunt.
    If your really paranoid buy copper plated exhaust nuts, you dont need inconel nuts/studs and fucking nord locks

    Quote Originally Posted by cracka View Post
    Fuck I'm retarded

  20. #20
    SKYHI Motorsport TCR's Avatar
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    Everyone on Miataturbo.net swears by the incolnel studs and Stage 8 fasteners. I'll be going down that path when I upgrade from the factory turbo gear, as I've already had issues with nuts coming loose when pushing my car on track. Do it once and do it properly.

    http://www.trackspeedengineering.com...-Stud-Kit.html
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  21. #21
    Bannered takai's Avatar
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    Quote Originally Posted by TCR View Post
    Everyone on Miataturbo.net swears by the incolnel studs and Stage 8 fasteners. I'll be going down that path when I upgrade from the factory turbo gear, as I've already had issues with nuts coming loose when pushing my car on track. Do it once and do it properly.

    http://www.trackspeedengineering.com...-Stud-Kit.html
    Yeah, thats what im thinking. Also vaguely considering just splashing out for a Kraken manifold that comes with the inconel studs and stage 8 fasteners, especially if they turn out to be required anyway it brings the total cost of the manifold down.
    Chris
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    The new nugget
    I never saw a wild thing sorry for itself. A small bird will drop frozen dead from a bough without ever having felt sorry for itself. - D.H.Lawrence

  22. #22
    Registered User MWP's Avatar
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    Quote Originally Posted by TCR View Post
    Everyone on Miataturbo.net swears by the incolnel studs and Stage 8 fasteners. I'll be going down that path when I upgrade from the factory turbo gear, as I've already had issues with nuts coming loose when pushing my car on track. Do it once and do it properly.
    http://www.trackspeedengineering.com...-Stud-Kit.html
    Looks like they will be fun to remove after being in place for a few years.
    I can see the tops shearing right off them.

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