Breaking wheel studs
Aug 26, 2009 | 04:18 PM
Thread Starter
Pro
Joined: Sep 2006
Posts: 532
Likes: 1
From: Virginia Beach Virginia
Breaking wheel studs
I have I-forged rims on my Z and have broke 3 different wheel studs since I have had the rims on my car. Any ideas to why this may be happening?
Aug 26, 2009 | 04:19 PM
Drifting
Joined: Feb 2008
Posts: 1,765
Likes: 2
From: St. Clair Shores Mi
how are you breaking them? ie tightening, driving, hard launches?
Aug 26, 2009 | 04:32 PM
Thread Starter
Pro
Joined: Sep 2006
Posts: 532
Likes: 1
From: Virginia Beach Virginia
Driving under normal conditions
Aug 26, 2009 | 07:54 PM
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
Are the wheels made specifically for the GM bolt pattern (5x120.6mm)?
What torque value do you use to tighten the lugs?
Aug 26, 2009 | 08:32 PM
Team Owner
Joined: May 2005
Posts: 23,682
Likes: 9
From: Flagstaff Az.
Give Randy a call at Doug Rippie Motorsports (forum sponsor) and get some of their 90,000 psi studs. I used them when I put the big brakes on my vert.
Aug 26, 2009 | 08:42 PM
Team Owner
Joined: Sep 2003
Posts: 43,084
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From: Raleigh / Rolesville NC
Aug 27, 2009 | 12:00 PM
Melting Slicks
Joined: Apr 2003
Posts: 2,285
Likes: 16
From: Nashville TN
The only time I have seen broken studs is road racing or over torquing.
Aug 30, 2009 | 03:08 PM
Thread Starter
Pro
Joined: Sep 2006
Posts: 532
Likes: 1
From: Virginia Beach Virginia
Thanks for the responses, would being the incorrect offset cause studs to break off?
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Aug 30, 2009 | 07:01 PM
Melting Slicks
Joined: Feb 2007
Posts: 3,266
Likes: 8
From: Indian Rocks Beach FL
St. Jude Donor '08-'09-'10
I wouldn't think the offset would cause breaking studs but if the wheels aren't hubcentric I'd think you would have a problem.
Aug 30, 2009 | 09:21 PM
Melting Slicks
Joined: Dec 2003
Posts: 2,334
Likes: 11
From: las vegas nv.
Quote:
Originally Posted by
AU N EGL
Over torqued ?
100 lb ft
MAX 100 lbs. some idoit did 130