SpecRacer.com

Wanted to double check lug nut torque spec.

I'm not sure on spec's but I torque mine to 70 ft LBS.

Thank You for the reply.....

While we're on the general subject, what's the axle nut torque spec?

I'm mobile but the Mumm brothers' site has all the specs.

GregCirillo wrote:While we're on the general subject, what's the axle nut torque spec?

135-40.

55-60 ft-lbs on the lug nuts. 150 ft-lbs on the rear axle nut. 55 ft-lbs (min) on the front wheel hubs.

It seams so simple however there is so much more than just a number.
The first information I found on wheel lug nut torque was the Mumm brothers site that suggested 55 foot pounds. This did not work for me one rainy race when the left rear wheel departed the car three laps into the race. Result:damaged Shelby wheel, hub, and bodywork, could have been much worse. Several lessons learned that day. Always check your own wheel torques, after all its your butt in the car and most likely paying for damage. The torque of 55 may not be enough, it's not clear if the wheel was seated correctly, dirt behind wheel, torqued in proper sequence, torque wrench calibrated, even if 55 was actually set.

The lug is a 12mm with 1.5 thread, if you look that up you will find numerous settings depending on tensile strength. I have not yet found that especially since there are different lugs on the SRF.
Remembering that the torque is needed for clamping strength to hold the nut in place during intended use. I bet we put more stress on those lugs than the 1985 Renault. I would also bet there is a optimum difference between the different wheels we use.

This site http://www.tirerack.com/wheels/tech/tec ... techid=107. provides the most complete information on wheel lug torquing that I could find. It would be nice if we could get a update from Enterprises but I would rather have Mike D. working on gen3.

Sorry to have used so many words, however if I had read this before the rain race I would have had more money to spend on other parts. Griff

Thanks for the info-I did find some notes I took on the phone with Steve Fenske prior to his passing, he told me 65lbs

I've used 65lbs for all wheels but the steel (you probably don't have those anyway) forever. That number seems to work just fine.
I probably got it from Fenske, actually.
Denny