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lug torque question

9K views 18 replies 7 participants last post by  Slidd 
#1 ·
anyone know on the WB wheels, what the correct lug torque spec is? manual says 130 however I'm skeptical because on the charger, the HC or dynamic wheels were 111 and the other chargers were 130 so I find it strange that the manual say 130 for all challengers?WHEEL AND TIRE TORQUE SPECIFICATIONSProper lug nut/bolt torque is very important to ensure thatthe wheel is properly mounted to the vehicle. Any time a wheel has been removed and reinstalled on the vehicle, the lug nuts/bolts should be torqued using a properly calibrated torque wrench using a high quality six sided (hex)deep wall socket.Torque SpecificationsLug Nut/BoltTorque**Lug Nut/BoltSizeLug Nut/BoltSocket Size130 Ft-Lbs(176 N·m)M14 x 1.50 22 mm*
 
#2 · (Edited)
175 N·m (130 Ft-Lbs ) is the current spec, however 150 N·m (111Ft-Lbs ) is certainly more than adequate under any circumstances (including road course duty).
 
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#3 ·
Thanks bud


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#5 ·
Problem is they really give confusing info on Scat Packs. Yes they say 130 lbs in the R/T owners manual and the Scat Pack is an R/T but .... if you order Dynamics Package you get the same wheels and brakes that come on the SRT and Hellcat and the SRT owners manual says 111 lbs. So it's always been a point of confusion and debate.


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#7 ·
All true very confusing but now I’m not sure as I don’t have dynamics but I also don’t have standard rt so which is it lol


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#8 ·
2019 is the same confusion.

The R/T manual which would include Scat Pack Widebody says 130 but the SRT manual which would include Hellcat Widebody with the exact same wheels and brakes say 111.

So I don't know.

Maybe have a good torque wrench ready and see what Brampton had them set at.

Other than that not sure, I'd almost hate to even ask the dealer. [emoji16]

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#9 ·
Why is this so complicated lol. Guess I can go with 120 which is a split of the two ... but I’d rather put them at exactly what they are supposed to be... just strange as they don’t say for widebody or other variation it just says for 6.4l that it should be 130 in my manual lol


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#10 ·
Why is this so complicated lol. Guess I can go with 120 which is a split of the two ... but I'd rather put them at exactly what they are supposed to be... just strange as they don't say for widebody or other variation it just says for 6.4l that it should be 130 in my manual lol

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111-115 is PLENTY. Some of the Ferraris only call for 65 lol

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#13 ·
ok sounds good and could be correct. they really should clarify this in the manual LOL? I assume all 6 piston setups are the 2 piece? So I am 111 not 130?
 
#14 · (Edited)
It is not a rotor-specific; the issue was a specification holdover from previous Chrysler days prior to Daimler Benz. The governing torque spec at the time was 110ft*lbs and was based on American Standard 1/2x20 fasteners.

Someone finally caught up with this and updated the specification for Metric M14 fasteners...175 N*M (130 ft*lbs).

In as simple safety and integrity terms as I can put this; at 150 N*M (110 ft*lbs)...the chances of a failure might as well be non-existent. In a worst-case scenario crash that applied physical force to the point a wheel - any wheel - was separated from a rotor / hub assembly, whatever is left of the wheel will still be attached to the hub assembly.

No need to wring one's hands over a non-existent issue...
 
#16 ·
Such is the science of FCA :^)
 
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#17 ·
So are we all in agreement that the wide body is 111 with no issue ?


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#18 ·
All srt hellcats and dynamics have always been 111 while all others are 130, in just confused now as my challenger is neither lol...


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#19 ·
I think the 2-piece rotor 111 lb idea makes as much sense as anything so that's what I would do. It certainly cant hurt and haven't heard about any SRT or Hellcat wheels falling off and mine have been torqued to exactly 111 lbs since I brought the car home in Feb of 16 and no issues and none getting loose so that's what number I would use, 111 lbs for cars with 2-piece rotors.


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