Wreck Me Otter

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Greg Fishman

Sounds exactly like what I use. Might want to use a touch of anti sieze on the shoulders before installing them.

Flying Finn

I use them as well, with aluminum wheels and haven't had any problems even though I usually put my track wheels on ~ a week earlier when I go to the track.

Anir

Kim,

I use the open steel nuts at the track with my aluminum Fikse wheels. No problems.

Edward

Hey all,

I've heard the same advice about using steel lugnuts for trackdays. How necessary is this really (for those not racing). I've got Kumhos on 17"cups and I timetrial, if that's at all relevant. TIA

Edward

zffnhsn

I use the OE aluminum nuts with 17 in cups and Kumhos. No problemo! Besides, aren't we after unsprung weight?

DJF1

At PCA club racing its the rule to run steel lug nuts. No options there really. If you change tires back and forth its a good idea to have a few extras as well.
Kim I use steel lug nuts with the stock 17 cups on the race car.

kev

If you're doing alot of DE's and changing wheels/tires often wouldn't it make sense to switch to steel lugs since the studs are steel also? Better to have steel-on-steel grinding vs. aluminum-on-steel. I'm changing wheels with an impact wrench two to three times a month and it does wear down the nut and nut threads.

STLPCA

For those interested, new steel lug nuts regularly sell on eBay for about $2 each in sets of 20. Search eBay for "Porsche steel lug"

Edward

Thanks, Dan. Yeah, I see those all the time....just wondering if I should. Guess I should. Thanks, all

Edward

joey bagadonuts

One other advantage to open, steel lugs is that you can see how far the threads engage. I believe the Club Race rule is that the engagement amount should be equal to or greater than the width of the studs.

I purchased some BBS race wheels and the centers were actually a bit thicker (~1/2") than the Factory wheels. When mounted, the stud ends only travelled half way through the lugs; to use them safely, I would've needed to install longer studs. Luckily, the seller was a local PCA member who refunded my money.

If you use spacers/shims with stock studs, you might also be running a safety risk. Steel lugs will help determine if that's the case.

Greg Fishman

I had heard another reason for steel lugs. If you torque a hot alloy lug nut you can damage it. Don't know if it true but since the rules require them it is a non-issue for me.

joey bagadonuts

Boy, Kim, that's a great deal on lug nuts.

I'd suggest you measure the amount of thread engagement to see if it is, in fact, equal to or greater than the width of the studs. The "requirement" comes from the PCA Club Racing Rules but I think if you're participating in other high-speed events, adherence to those guidelines is probably not a bad idea. At least you'll never fail tech at your local PCA DE's.

Are you using spacers or aftermarket wheels?