Wheel bolts or wheel studs? Exactly.
When we called BimmerWorld to order some studs for our E46-chassis BMW M3, we figured it would be a quick transaction. But, as usual, things went deeper, and we learned a thing or two.
One big takeaway: “User error is a massive issue with wheel studs,” BimmerWorld’s James Clay tells us. How’s that? …
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buzzboy
SuperDork
7/10/23 5:02 p.m.
I've not thought about this and I probably should. I think I installed my studs in 2015 but I didn't think to write it down. That replacement interval gets pricey for endurance racing though. We're doing 14.5 hours of racing per weekend!
buzzboy said:
I've not thought about this and I probably should. I think I installed my studs in 2015 but I didn't think to write it down. That replacement interval gets pricey for endurance racing though. We're doing 14.5 hours of racing per weekend!
Hm, I wonder if the failure mode on studs is more related to hours of use or to expected number of on/off cycles? Very different for enduro vs sprint racing there!
codrus (Forum Supporter) said:
buzzboy said:
I've not thought about this and I probably should. I think I installed my studs in 2015 but I didn't think to write it down. That replacement interval gets pricey for endurance racing though. We're doing 14.5 hours of racing per weekend!
Hm, I wonder if the failure mode on studs is more related to hours of use or to expected number of on/off cycles? Very different for enduro vs sprint racing there!
Also very dependent on vehicle type. BMWs are prone to stud failure based on my experience with their 12mm studs versus other makes that have 14mm studs, etc.
Olemiss540 said:
Also very dependent on vehicle type. BMWs are prone to stud failure based on my experience with their 12mm studs versus other makes that have 14mm studs, etc.
Ah ha, now this makes sense
I've seriously been considering this on my 12' JSW, if only to make tire rotations on my DD go smoother.
I'd love to go to upgraded and longer ARP studs for the '23 BRZ, but it means removing the hubs to drive the old ones and and new ones in, vs a BMW where they are just screw-in type.
That is something I really hadn't thought about. So, now that I am thinking of it, what would be recommended for my 1998 Corvette that I race, in both autocross and road racing?
Anyone know if ARP makes a 3" stud the have a knurl larger the .625?
Installer FUBARED the installation of one on our Moser 31 Spline axles
Sorry for the Hi-Jack