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Dave951M · Joined: 03 Feb 2003 Posts: 57 Location: NC- USA

I've been reading up on the nut and stud update stuff in the 931 Tech section. Has anyone gone to stainless steel studs and copper nuts? If so, what has been the result?
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Dave951M
86 951 Guards Red (Gone but not Forgotten!)
82 931 Guards Red (under construction)

CMXXXI · Joined: 05 Nov 2002 Posts: 1939 Location: Vicksburg, MS

I've been using copper nuts on my turbo components, and have not had any problems. Easy on, easy off. I've got my motor pulled to repair/replace the head and will be using copper nuts on all exhaust components when I reassemble. Don't know what to tell you about SS studs.
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'79 Eurospec 931

john h · Posted: Mon Nov 10, 2003 1:30 pm Post subject:

I've used stainless steel bolts on the turbo to manifold since about 1987 and found they don't freeze up like steel ones do and the genuine ones I found will eventually work loose and at about NZ$60 a pop versus $2.00 for the stainless I reverted to stainless - even if they do drop out after a few years they're still cheaper.

I've changed to stainless steel studs and nuts on the manifold to head joint afew years ago - not sure on the life of these yet. The studs were easy to make as New Zealand is metric I could get 8mm threaded stainless rod and cut it to make the studs myself. It was time consuming but so far they've worked ok.
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