Saturday Night Racer - Lug nut torque ???

mini07 LMR Member Offline Dirt Late Models Rule! Posts: 151	Lug nut torque ??? 09/02/13 at 3:32pm 1" nut on 5/8 coarse thread stud ??
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over4t LMR God Offline Leaf lifer Posts: 1113	Re: Lug nut torque ??? Reply #1 - 09/02/13 at 7:36pm Aluminum wheels-70 lbs., Steel wheels-80 lbs.
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mudslinger47 LMR God Offline Well crap stuck with the dickweed for four more Posts: 8389	Re: Lug nut torque ??? Reply #2 - 09/03/13 at 12:16am Milwaukie impact
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TALON75 LMR God Offline DO IT INTHE DIRT Posts: 735	Re: Lug nut torque ??? Reply #3 - 09/03/13 at 12:47am Well that explains Bako earlier this season!lol 75ftlbs on steel or aluminum.
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mini07 LMR Member Offline Dirt Late Models Rule! Posts: 151	Re: Lug nut torque ??? Reply #4 - 09/03/13 at 7:58am My battery gun rated 240 lbs. seems to be biting into wheels.
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over4t

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Re: Lug nut torque ???
Reply #5 - 09/03/13 at 12:16pm

Got the numbers I gave, 70# aluminum, 80# steel, from an old tire/wheel guy that knew his stuff. Did some digging on this and it's surprising how few wheel manufacturers give torque recommendations on their racing wheels. You can find numbers for about any size passenger car or truck. Basset is one of the few that does and they say 85# on their steel wheels and Basset has one of the stronger center sections of any wheels out there.
ARP gives a strength value on a 5/8 170,000/190,000 stud of 210 lbs. but darned few, if any, wheels' centers are that strong. The 45 degree lug angle on racing wheels ups the clamping force way over the 60 degree stuff that's common on street wheels. Gunning them on to over 220 lbs. is tough on the coined holes on the wheels , the nuts and the wheel studs themselves. Of course that's what nearly all of us do at the track and then we wonder why our wheel wobbles...if it lasts that long without a hit.
The best idea is to take the time and torque them on at home when new and try not to get too enthusiastic with the gun at the track.

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mudslinger47

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Re: Lug nut torque ???
Reply #6 - 09/05/13 at 5:57pm

TALON75 wrote on 09/03/13 at 12:47am:

Well that explains Bako earlier this season!

Torque wrench makes zero difference if you don't even look at the wheel.... Wink

From my best recolection, sense my mid twenties to now, 65 next month, I have had 5 loose wheels. Now all that racing and and five loose wheels ain't bad, concidering evertyone of them were from not even looking at them, like I said Torque wrench would make zero difference. How many times this year have you seen a NASCAR Cup car have a loose wheel at the biginning of the race, after the initial grean, I believe there have been three. They torque theirs before they start....No sure way, Ole Millwaukie as good as any. I have one car to take care of, you have four, you re-torque after each time you pull the wheels off? We had ours off a minimum of six times last Sat night....

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TALON75

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Re: Lug nut torque ???
Reply #7 - 09/05/13 at 8:55pm

everytime before the car hits the track, torque, pressures, mud plugs. I try not to hammer on the lugnuts that hard, carbon fiber lugnuts don't like that so I have to use a torque wrench .

And I must say, I usually have some help at the track so it isn't something I always have to do myself, but I do make sure it was done, peace of mind is priceless .

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formercrewguy LMR God Offline The shrub brothers are punks Posts: 4293 Arizona	Re: Lug nut torque ??? Reply #8 - 09/06/13 at 8:03pm Tighten them till they squeak.
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mudslinger47 LMR God Offline Well crap stuck with the dickweed for four more Posts: 8389	Re: Lug nut torque ??? Reply #9 - 09/08/13 at 3:14pm formercrewguy wrote on 09/06/13 at 8:03pm: Tighten them till they squeak. We talkin about your wallet?
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