Lug nut torque

RacerBill

RacerBill

New member
The factory specs for my car (83 Shelby Dodge Charger) call for 80 ft lb torque on wheel lugs. Does that sound about right?

Thanks.
 
I use 100 ft-lbs. But my factory spec is 90, and that's with 14mm studs (stock). 80 is very normal for 12mm studs, which I'd expect you have...
 
85 ft-lb on the Rabbit, w/ studs. IIRC, isn't the issue w/ over-torquing more of a problem w/ warping rotors, than anything else?
 
I had been tightening to 100 ft/lbs on my 12mm studs until last friday. I was checking torque on my wheels and found two studs that kept turning. I said WTF! as I tried to remove the wheel one of the studs just spun? Well I managed to remove the lug nuts, the wheel, the caliper, and the brake disk. I found that the stud had stretched and actually caused a shinking of the knurled area of the stud. The butt of the stud was even convex! those were H&R studs. ARP here we come.
 
Originally posted by itmanta@Sep 5 2005, 08:45 PM
I had been tightening to 100 ft/lbs on my 12mm studs until last friday. I was checking torque on my wheels and found two studs that kept turning. I said WTF! as I tried to remove the wheel one of the studs just spun? Well I managed to remove the lug nuts, the wheel, the caliper, and the brake disk. I found that the stud had stretched and actually caused a shinking of the knurled area of the stud. The butt of the stud was even convex! those were H&R studs. ARP here we come.
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IMHO 100 is too high for 12mm studs; I run 85ft/lbs on my Pro7 with 12 mm studs and have never had a problem with wheel nuts loosening. This was with factory Mazda mags and now Panasports.

Marcus
 
Minor hijack -

Originally posted by itmanta@Sep 7 2005, 09:52 PM
Yep, I replaced the 12mmX1.5 with ARP 1/2-20's.
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So just out of curiosity, why did you switch to 1/2-20? ARP makes 12x1.5 studs. Did you just have a burning desire to buy new lug nuts? :D
 
"So just out of curiosity, why did you switch to 1/2-20? ARP makes 12x1.5 studs. Did you just have a burning desire to buy new lug nuts? "

The knurl diameter on the 12mmx1.5 studs were too small for my hubs. Shucks, now I cannot use my cool Zenkei forged aluminum lugnuts.
 
The factory calls for 80 also on alloys for my dodge....but after seeing an unusual wear pattern on my race rims (bbs rvs and ar 24s) I called auto tire and asked what the manufacter calls for on these rims, 65 lbs....Have not had any problems since...I know it sounds low :( I suggest calling the maker of the rims...each alloy and the process in the way they are made are different :)
 
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