Wheel studs - strength?

[Rittmeister]

Did some searching and only found some old threads, and I'm wondering if there's newer info out there.

I ran ARP studs on my 4-lug setup, which advertise great tensile strength. I'd like to get the same for my 5-lug hubs; the rears are no problem but the fronts are Attain; everyone says they take S14 studs, but ARP doesn't make a direct-fit application.

Anyway, I'm curious - how do some of the other aftermarket studs compare to ARP? I know Nismo was the standard for a while, but the vid on SPL's site with the 350Z losing all five studs on the front right wheel at once is kind of freaky.

How do Peak Performance and Circuit Sports studs measure up, strength-wise?

[revolutionz_s13]

i believe most of those studs (Nismo/circuit sports/peak performance) are not actually any stronger, they are just extended wheel studs. AFAIK, ARP are the only reasonable strengthened wheel studs to get over here....

[Grimace]

SPL has the ARP studs on their site for the front and rear of Z32, S13, S14, Z33.

Like said before, The Nismo, Circuit Sports, Peak performance are really just extended. Some of them might me a little stronger then stock, But if you plan on seriously tracking the car, Go ARP.

[ixfxi]

i have nismo extended studs and have snapped ONE in my history of working on my car, not during driving though (fortunately). since then, ive questioned the quality of the nismo studs.. but not enough to actually go buy ARP studs and replace the nismos.

Now that ARP studs are avail, I'de prefer going with those... they werent avail several years back.

[Jung918]

I have had my nismo studs for a while and have not broken any of them. I do always torque it down to spec.

[DJ_Sunrise]

Honestly, if those studs on the Z snapped, there must have been a different problem. Just cuz they were torqued down, does not mean they were installed correctly.
1) Remember.. If you don't lube up the splines, it'll take a fuckload more than 80ft. lbs. tq. to have the stud in all the way.
2) If he was running long studs, he was probably not using stock steel lug nuts. The guy probably ran aluminum lug nuts. Last I checked aluminum and steel = not happy together. Most people do not use any form of lube.. be it even Pam cooking spray, on the studs. And guess what happens when aluminum and steel contract/expand thermally? Yea, problems. Lube your shit.
3) Also, who knows what the fuck kind of shitty wheel the guy was running, or if he had a hub centric ring.. for all we know his shit was way off. Think about it.. how many thousands of people run Nismo's, and that is the only one complaint you will ever hear.. I have 40k on my studs, with no problems.

Don't rule out stupidity in that 350Z case. Too much can go wrong, and that was the first time I've ever heard a problem with Nismo studs snapping while the cars in motion.

-Bart

[ixfxi]

Honestly, if those studs on the Z snapped, there must have been a different problem. Just cuz they were torqued down, does not mean they were installed correctly.
1) Remember.. If you don't lube up the splines, it'll take a fuckload more than 80ft. lbs. tq. to have the stud in all the way.
2) If he was running long studs, he was probably not using stock steel lug nuts. The guy probably ran aluminum lug nuts. Last I checked aluminum and steel = not happy together. Most people do not use any form of lube.. be it even Pam cooking spray, on the studs. And guess what happens when aluminum and steel contract/expand thermally? Yea, problems. Lube your shit.
3) Also, who knows what the fuck kind of shitty wheel the guy was running, or if he had a hub centric ring.. for all we know his shit was way off. Think about it.. how many thousands of people run Nismo's, and that is the only one complaint you will ever hear.. I have 40k on my studs, with no problems.

Don't rule out stupidity in that 350Z case. Too much can go wrong, and that was the first time I've ever heard a problem with Nismo studs snapping while the cars in motion.

-Bart


i agree, i'll never be using an aluminum lugnut. i will say that none of my lugnuts broke when i ran spacers that were machined without the hubcentric rings. the new set of spacers DO have hubcentric rings machined onto them, so they'll be pretty damn secure which can only be a good thing.

all things in consideration, i dont think the nismo lugnuts are bad.. but they sure arent ARP quality.

[Rittmeister]

I wouldn't run aluminum lugs, no trouble there. I prefer to loosen with an impact gun, and I usually run them up the threads with the impact as well before getting out the torque wrench, so it's always been cheap Gorilla chrome steel lug nuts for me.

I already have the 12x1.5 lugs left from my 4-lug hubs, so I was counting on finding ARP studs to fit. I just have to decide whether to drop big bucks for the set from SPL which fits exactly, or slightly less for a set that's off by a few thousandths on the knurl diameter but which a few folks say they're running successfully.

Thanks guys.