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Longer wheel studs?

Old 03-11-2009, 04:29 PM
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dbryant61
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Default Longer wheel studs?

1980 911SC D-Class/GTS2

I have a set of BBS wheels with thicker flanges than my Fuchs, so the studs end flush with the lug nuts - not acceptable. Does anyone here know what the stock length is so I know what to order. Also, does anyone know the type of seated end so I can order custom from ARP?

Alos, I need recommendations on window nets, inner and outer.

Thanks in advance.
Old 03-11-2009, 04:48 PM
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chrisp
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Stock wheel stud is 46mm on an SC.
Old 03-11-2009, 05:09 PM
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shiners780
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Originally Posted by dbryant61
so the studs end flush with the lug nuts - not acceptable.
Maybe a stupid question, but...wouldn't a nut that is flush with the end of the stud be considered fully engaged? Why wouldn't that be acceptable?
Old 03-11-2009, 05:20 PM
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flatsics
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Don,
Having the stud flush with the lugnut is fine. That is more than enough thread engagement. There is nothing wrong with longer studs, makes it a little easier to install the wheel.

General rule of thumb is to have thread engagement equal to the diamater of the stud.

Last edited by flatsics; 03-11-2009 at 05:59 PM.
Old 03-11-2009, 07:02 PM
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Cory M
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You can get a couple different lengths of longer 911 studs from Smart Racing Products or Paragon Products

I agree that having the stud end flush with the nut is sufficient assuming proper torque.
Old 03-11-2009, 07:23 PM
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Gary R.
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Originally Posted by flatsics
Don,
Having the stud flush with the lugnut is fine. That is more than enough thread engagement. There is nothing wrong with longer studs, makes it a little easier to install the wheel.

General rule of thumb is to have thread engagement equal to the diamater of the stud.
Agree 100%, you are fine as is Don.
Old 03-11-2009, 07:37 PM
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A930Rocket
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Those wheels looked good on my car. I mean yours! LOL

My thought was nine revolutions of the lug nut. Read it some race regs...

Jim
Old 03-11-2009, 09:20 PM
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smlporsche
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Don-
Didn't you have your maiden race last weekend?
If so, how'd ya do?
Old 03-11-2009, 09:50 PM
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dbryant61
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All, I cannot remember where I read it, but buried in some club racing rules, I read that the stud had to show one full revolution of thread beyond the nut. I know its not that big a deal, and I have never had a loose nut (other than behind the wheel), but my studs may be 29 years old, so I'm replacing them with 52mm I ordered today from Paragon, plus new nuts. I'll be in there next weekend replacing rotors anyway, so why not?

Jim, the drug dealer rims still look "fly, for a white guy".

Eddie, TedA and I are signed up for comp school and club race with NASA 3/27-29. We did their instructor clinic and instructed with them in Feb. Great event, great organization. Oh, how'd I do? I won the DE Cup!!!


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