Inspecting Wheel Studs?

[timmo]

I have ECS Tuning studs with about 10 autox on them. Hmm, perhaps I should look into replacing them soon...

[Apex_80]

MSI or Machining Solutions is the company that makes most if not all of the studs for the NASCAR teams down here. I believe after the troubles BW have had they quietly switched to MSI producing them. To answer the OP's question I view them as every 2-3 years if street driven and every year for track car.

[r4dr]

I've been using Motorsport Hardware on the track car with success (or no failures so far...) and I know many local people who haven't had issues with Apex studs.

I've heard it helps to take care of them – no torquing while they're hot from lapping, don't overtorque them to begin with, install with appropriate torque, etc. But I have no evidence how much this extends their life so I replace them every few track seasons.

[CrookedCommie]

Can you share the studs you used? Was planning on using the bimmerworld ones if needed.

I've ripped a couple BW. Switched to MSI.

[eacmen]

I had stud failure at Mid-Ohio two years ago. The studs were less than a year old. It was determined to be a manufacturer defect (I know four other BMW drivers with the same studs that had failures). Both the supplier and I changed to a well know USA steel supplied and USA manufactured stud. I'll still change them every other year.

Feff

Can you share the studs you used? Was planning on using the bimmerworld ones if needed.

[Feffman]

Is there a method to inspect wheel studs before they fail? Some say they are routine maintenance for a track car. Previous owner had apex studs installed and wondering if I need to replace them or not. Is it just one of those things that just fail suddenly without warning?

I had stud failure at Mid-Ohio two years ago. The studs were less than a year old. It was determined to be a manufacturer defect (I know four other BMW drivers with the same studs that had failures). Both the supplier and I changed to a well know USA steel supplied and USA manufactured stud. I'll still change them every other year.

Feff

[eacmen]

Is there a method to inspect wheel studs before they fail? Some say they are routine maintenance for a track car. Previous owner had apex studs installed and wondering if I need to replace them or not. Is it just one of those things that just fail suddenly without warning?