AR Racing wheel/lugnut question
Thread Starter
Pro
Joined: Dec 2008
Posts: 531
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From: Frisco TX
AR Racing wheel/lugnut question
Hey guys,
I bought a complete rolling chassis for my '69 project - it came with 17in AR Hoopster wheels. They are in the vintage line and do not require spacers. They call for acorn style lugnuts and I am using standard 7/16 x 20 GM studs.
I am getting 6.5 full 360 deg turns to full tight on the AR lugnuts - maybe I am just being paranoid but does this sound sufficient? Last thing I want to do is punt a wheel
TIA, Ed
I bought a complete rolling chassis for my '69 project - it came with 17in AR Hoopster wheels. They are in the vintage line and do not require spacers. They call for acorn style lugnuts and I am using standard 7/16 x 20 GM studs.
I am getting 6.5 full 360 deg turns to full tight on the AR lugnuts - maybe I am just being paranoid but does this sound sufficient? Last thing I want to do is punt a wheel
TIA, Ed
Racer
Joined: Feb 2009
Posts: 343
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From: San Diego CA
Thread Starter
Pro
Joined: Dec 2008
Posts: 531
Likes: 0
From: Frisco TX
thats what i was afraid of. I called AR and the guy I spoke with said it should be ok as some people only get 3 or 4 turns
Where did you get the min specs?
looks like a shank style lug nut is the next best option - I really don't want to go to 1/2 in studs.
Anyone with ideas?
Le Mans Master
Joined: Oct 2006
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From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
Get a standard 7/16-20 lugnut. Put that on and see exactly how much stud is in the nut. If it is below the end of the nut, it's not enough. I've never seen any printed specs on automotive applications (I'll bet they're out there), but in my world (aircraft) if you don't have a minimum of 3 full threads past the nut you need a longer bolt/stud.
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Thread Starter
Pro
Joined: Dec 2008
Posts: 531
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From: Frisco TX
thanks for the replies
I finally got someone on the horn at AR who knows their stuff - looks like ET (extended thread) lugnuts are the answer. They are designed for acorn nut style wheels and should provide an extra .20 of thread engagement. I am currently at .40 - this will put me in the .60 range which should be more than enough for 7/16 studs. Good article below:
http://wheelprofessor.com/2009/02/20...-they-and-why/
Thanks, Ed
I finally got someone on the horn at AR who knows their stuff - looks like ET (extended thread) lugnuts are the answer. They are designed for acorn nut style wheels and should provide an extra .20 of thread engagement. I am currently at .40 - this will put me in the .60 range which should be more than enough for 7/16 studs. Good article below:
http://wheelprofessor.com/2009/02/20...-they-and-why/
Thanks, Ed
Last edited by ED69ray; Apr 23, 2009 at 06:57 PM.
