Lateral-g Forums - Twisting studs on the street??

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I would go ahead and upgrade if i were you. just my .02:cheers:

We had the same problem on the green chevelle. It broke 1 stud and bent the rest of them. I replaced the studs, Reemed the lug holes on the wheels to accept "drag style" shanked lug nuts that go through the wheel -.030 away from bottoming out. I had a set of Hub Centric rings machined so the wheel is now supported on the axle flange and not the wheels studs. Most of these fancy aftermarket wheels use generic tolerances and tappered face lug nuts. Thats not a good combo. After this incident there will never be another car that leaves our shop without Hub Centric rings and and full shanked lugs.

These are the guys who machined the Hub centric rings

http://www.motorsport-tech.com/hub_rings.html

I gave them the specs and had them in a week.The price was really good. Its alot cheaper than replacing a 1/4 panel.

Don't know the best route you should go about fixing it, but congrats on twisting the Strange grade 8's! :unibrow:

Quote:

Originally Posted by Novelli (Post 281463)

Awesome!! thanks for that link. That is what i need. My lugs are NOT tapered... but the rim does sit on them (so to speak.. the lug has a built on sleeve). The hub centric rings is a fabulous idea. :captain:

Non tapered lugs would sure exlpain your problem Josh.

My rear lugs look like this without the washers they show in the photo.

unless i missed it i didn't see anywhere that says what your lugnut torque was or if the lugnuts were loose when taking the wheels off. with the half inch studs they should be torqued to 120 ft lbs. not 100 like normal studs. seen this on a few cars before and it was just under torqued wheels:thumbsup:

Quote:

Originally Posted by CamaroAJ (Post 281630)

Hmmm... We usually torque them 100-110 with aluminum wheels. They were tight when the came off.

I've never heard of that much torque. I only torque mine to 85.

Quote:

Originally Posted by phillym5 (Post 280687)

I originally thought the same... but the Torque was correct. I also thought maybe it was a "bad batch"... but they came with the axles... and they are Strange grade 8 studs... and they are always pretty consistent with the drag race guys.
I spoke with the drag racers(street racers) around here... and they said with the sticky ass tires i have... if it hooks in second... and im running over 750tq to the ground.. it can twist them on the street no doubt. They told me to drill them out and put some 5/8th studs in there.... or don't run such a sticky tire. I want to put the bigger studs in there... but i would have to get my rims drilled out.:mad:
Who knows..... i have some grade 9's in there as a temp fix... i'll be keeping my eye on them. A buddy of mine sheered his studs last year at the track in a 2nd gen.... destroyed his entire quarter panel. Im not trying to redue "my" quarters...lol.

the thing is, in second gear your not running 750tq to the ground.... assuming your 2.nd gear ratio is arround 2.. and your are a running 3.73 rear your tourqur to the ground is 750x2x3.73=5595 foot pounds of tourque.. !!! and over 6000 with a 4.11 !

if you have grease or oil on the axle flange you will bend the studs... it needs to be dry and the bolts torqued well a grade 8 - 1/2 inch bolt should be in the 110+ tourque range