Torque lug Nuts
Race Director
Joined: Feb 2011
Posts: 12,122
Likes: 419
From: Cold Hell, Minnesota...for now
St. Jude Donor '15 thru '26
This should be a great reminder for us all to torque those nuts. Especially after a few hundred miles on new cars. Those aluminum wheels like to shake the jug nuts loose!
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Instructor
Joined: Dec 2010
Posts: 191
Likes: 0
From: California
For 99% of lugnuts I know they say tighten to 98lbs/ft. Haven't read up on what it is for corvettes....but back with Ford I knew they said 100, but what was the most widely recommended was 98. Had an issue with a lug seizing on my BRAND new True Forged wheels when I torques them to 100 (believe it or not).
Race Director
Joined: Sep 2000
Posts: 11,143
Likes: 1,913
From: Missouri City, TX
http://en.wikipedia.org/wiki/Torque
Look in the Section for Units and discussion about British Units which is also US Customary Units.
Here is an excerpt from the 2008 Corvette Owners Manual Page 5-104 that I cut & paste from a pdf file:
Engine Data
Engine Horsepower Torque Displacement Compression Ratio
6.2L V8 430 @ 5900 rpm 424 lb ft @ 4600 rpm 6.2L 10.69:1
6.2L V8 with option NPP 436 @ 5900 rpm 428 lb ft @ 4600 rpm 6.2L 10.69:1
7.0L V8 505 @ 6300 rpm 470 lb ft @ 4800 rpm 7.0L 11.0:1
Last edited by GOLD72; Apr 20, 2011 at 08:23 AM.
Drifting
Joined: Feb 2006
Posts: 1,339
Likes: 1
From: Lake Delton (WI Dells) WI
You are wrong!!! Lbs/ft is force value divided by a distance value or force per unit of distance. The correct term of expression for torque can be either lbs-ft or ft-lbs. Torque is a force applied over a unit of distance which is force multiplied by the distance (lever arm). Go look at your owner's manual for torque values and I promise you it will not be expressed as lbs/ft or lbs/in.
http://en.wikipedia.org/wiki/Torque
Look in the Section for Units and discussion about British Units which is also US Customary Units.
Here is an excerpt from the 2008 Corvette Owners Manual Page 5-104 that I cut & paste from a pdf file:
Engine Data
Engine Horsepower Torque Displacement Compression Ratio
6.2L V8 430 @ 5900 rpm 424 lb ft @ 4600 rpm 6.2L 10.69:1
6.2L V8 with option NPP 436 @ 5900 rpm 428 lb ft @ 4600 rpm 6.2L 10.69:1
7.0L V8 505 @ 6300 rpm 470 lb ft @ 4800 rpm 7.0L 11.0:1
http://en.wikipedia.org/wiki/Torque
Look in the Section for Units and discussion about British Units which is also US Customary Units.
Here is an excerpt from the 2008 Corvette Owners Manual Page 5-104 that I cut & paste from a pdf file:
Engine Data
Engine Horsepower Torque Displacement Compression Ratio
6.2L V8 430 @ 5900 rpm 424 lb ft @ 4600 rpm 6.2L 10.69:1
6.2L V8 with option NPP 436 @ 5900 rpm 428 lb ft @ 4600 rpm 6.2L 10.69:1
7.0L V8 505 @ 6300 rpm 470 lb ft @ 4800 rpm 7.0L 11.0:1
you are applying a certain amount of force THROUGH a distance.
Le Mans Master
Joined: Feb 2007
Posts: 8,514
Likes: 235
From: Currently somewhere in IL,IN,KY,TN,MO,AR,MS,AL, or FL
For 99% of lugnuts I know they say tighten to 98lbs/ft. Haven't read up on what it is for corvettes....but back with Ford I knew they said 100, but what was the most widely recommended was 98. Had an issue with a lug seizing on my BRAND new True Forged wheels when I torques them to 100 (believe it or not).
CF Senior Member
Joined: Feb 2006
Posts: 23,313
Likes: 25
From: Tucson Arizona
For 99% of lugnuts I know they say tighten to 98lbs/ft. Haven't read up on what it is for corvettes....but back with Ford I knew they said 100, but what was the most widely recommended was 98. Had an issue with a lug seizing on my BRAND new True Forged wheels when I torques them to 100 (believe it or not).
7/16" dia. 50 to 60 lb-ft
12mm dia. 70 to 80 lb-ft
1/2" dia. 80 to 90 lb-ft
5/8" dia. 110 to 125 lb-ft
FWIW I would not go with what's "widely recommended." I would always defer to what the manufacturer specifically recommends.
Last edited by Wayne O; Apr 20, 2011 at 10:51 AM.
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