GT350R - Aftermerket Wheel Lug Nut Solution

[50 Deep]

The next order is in! Only 15 sets left available

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[madlag]

The next order is in! Only 15 sets left available

Can’t wait for my set!

 

[50 Deep]

Great news everyone. The latest batch of titanium lug nuts are rolling in. 6 sets have already shipped, with the rest scheduled to be shipped to enthusiasts by the end of the month. Due to increased demand this batch was increased to 40 sets. All have pre-sold with the exception of 7 available sets. If you are interested in grabbing a set before they are gone please send me an email. The next batch will not be ordered until December of this year.

 

[Tomster]

Got mine! Photos tomorrow.

 

[Tomster]

So the instructions you sent did not have torque adjustment factors for the various assembly lubricants. I am using ARP. Do you have the torque reduction values? Do you know who is the manufacturer of the studs on the GT350R (or supplier) to ford so as to ascertain preload values?

maybe @Epiphany any has an idea since he is our resident torque value expert.

I tried calling ARP direct, but went to someone's voicemail.

Edited to add: I called again and spoke to someone who told me that he could not give me any figures.

 

[JR369]

Got mine! Photos tomorrow.

Sweet. Mine are on the way.

 

[Epiphany]

Tom, liability has limited the response to your questions at ARP. Without tesing a specific application they are hesitant to quote a number.

The percentage reduction in torque values when using a thread lubricant is often times higher than one would think. A quick example...https://www.engineeringtoolbox.com/torque-lubrication-effects-d_1693.html

 

[Tomster]

Tom, liability has limited the response to your questions at ARP. Without tesing a specific application they are hesitant to quote a number.

The percentage reduction in torque values when using a thread lubricant is often times higher than one would think. A quick example...https://www.engineeringtoolbox.com/torque-lubrication-effects-d_1693.html

George at MGW, you, and John at ZL1 addons were listed as co-collaberators. Who do I call next?

For now, I guess I will just torque them to 100 and they will stay on Starbucks cruiser status until I have a number or a solution that I can live with.

 

[Tomster]

Here they are....

 

[galaxy]

I too spoke to ARP in person and got the same result (I think I had a thread on the topic). After discussing at length with T, I'm using 130 with the ARP grease, and I sleep like a baby. Everyone promotes 150 as the torque, but keep in mind that's +- 15 lb ft. So, 150 - 10% (the most promoted torque reduction value I've heard). Even if the ending value is higher due to the grease, I'm guessing with a target of 130, the applied torque still falls within that +-15, even if slightly over 150 applied. Like I said, this sounds good in my head and I sleep like baby with it.

 

[Epiphany]

Without putting my nuts on a chopping block I'd say Tom is closer to the safety zone with respect to not potentially yielding the factory lug studs.

The biggest advantage to using lubricant such as that offered by ARP is consistency or repeatability of a given torque figure and very little "scatter." It also reduces the potential for galling and provides some corrosion protection.

For some better understanding, here's a couple of videos that touch on the subject.

 

[JR369]

Question. Why are some of you using ARP when there wasn't any on the lugnuts to begin with?

EDIT: You just posted as I posted my question. Lol. Thanks for the info.

 

[Epiphany]

And T, you did a great job with the lug nuts. Kudos to you for your efforts.

 

[Tomster]

And T, you did a great job with the lug nuts. Kudos to you for your efforts.

Yes, don't think for a minute that I'm complaining, but I'm trying to do this right. Between you and your co-colaberators, I'm surprised there isn't a consensus on a recommended torque value with a common thread lube like ARP.

 

[oldbmwfan]

Yes, don't think for a minute that I'm complaining, but I'm trying to do this right. Between you and your co-colaberators, I'm surprised there isn't a consensus on a recommended torque value with a common thread lube like ARP.

You can get there empirically. Your 30% reduction in torque spec from factory (dry, clean threads) to lubed is a good guess. Heat cycle the hubs and drive 50+ miles, and re-check the torque. If the lugs are not backing off, you're fine. If any are loose, take them all up 10 ft-lbs to 110 ft-lbs and repeat.

Also note that lugs will sometimes need to be seated a few times in new wheels before they hold as strongly as they always will. Especially if the wheels have powdercoat or some other thick coating that can wear away in the lug conical seat, creating looseness.

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