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05-13-2012, 10:25 PM
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#1 |
 
Drives: 70 Chevelle big block Join Date: Aug 2011
Location: Memphis, TN
Posts: 96
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Wheel stud size
Does anyone know what size the wheel studs are?
How much can the ZL1 be modified (horsepower and drag slicks) without breaking the wheel studs? |
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05-13-2012, 10:28 PM
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#2 |
        
Drives: 2017 ZL1 Status "Thank You!" Join Date: Feb 2009
Location: SC
Posts: 2,498
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Don't know..... but I do know they did 1,000 straight launches from dead stop at a drag strip to test strength/durability and nothing broke! Work for ya?
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05-13-2012, 10:38 PM
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#3 | |
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Quote:
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05-14-2012, 10:32 AM
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#4 |
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Drives: too many to say! Join Date: Nov 2010
Location: S.E. Michigan
Posts: 1,013
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M14 x 1.5
120mm bolt cirlce for reference, 4th gen was M12 x 1.5 with 120.65mm bolt circle |
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05-14-2012, 09:01 PM
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#5 |
 
Drives: 2012 Chevrolet Camaro ZL1 Join Date: Dec 2011
Location: KC, MO
Posts: 438
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Anyone know the ft/lbs of torque used on the lug nuts on 5 spoke polished wheels?
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05-15-2012, 09:57 AM
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#6 | |
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Drives: too many to say! Join Date: Nov 2010
Location: S.E. Michigan
Posts: 1,013
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Quote:
http://www.camaro5.com/forums/showthread.php?t=33139 |
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05-16-2012, 06:48 PM
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#7 |
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Drives: 2012 Chevrolet Camaro ZL1 Join Date: Dec 2011
Location: KC, MO
Posts: 438
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Mine came with 100ft/lbs of torque applied. I had my dealership's service department split the difference & go for 125ft/lbs as I have heard of shear issues at 140+. 125 should be plenty.
125ft/lbs (technician accident... should have been 85ft/lbs) would literally shear the threaded studs on my '98 Mitsubishi 3000GT VR-4 & Dodge Stealth R/T Twin Turbo. Japanese metal is SOFT! Due to metal differences, the steel hubs & aluminum wheels would literally fuse together & required a bond breaker. If I ever have a stud problem, I swap out all 5. To change out a wheel/tire, they would literally have to be kicked off; not exactly ideal if you get a flat. |
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05-16-2012, 08:41 PM
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#8 |
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Drives: too many to say! Join Date: Nov 2010
Location: S.E. Michigan
Posts: 1,013
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100 vs 110 ?... when u check it, always look for torque required to start movment in the tightening direction...not breakaway loosening torque. Also, it might not be surprising to see some differnce between checks.
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05-16-2012, 08:57 PM
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#9 |
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Drives: 2012 Chevrolet Camaro ZL1 Join Date: Dec 2011
Location: KC, MO
Posts: 438
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My understanding is that the owner's manual calls for 140ft/lbs which on ZL1 studs seems to be a bit much! I don't think they will come off at 125ft/lbs. After a reset, I usually drive a few miles to check for a change. I need to pick up a Snap-On.
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05-17-2012, 11:52 AM
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#10 | |
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Drives: too many to say! Join Date: Nov 2010
Location: S.E. Michigan
Posts: 1,013
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Quote:
GM began to change lugnuts for Camaro in 2012 per owner manual: GM lugnuts with silver color ON THE CONE: 190Nm- 140ftlb GM lugnuts with BLUE color on the cone: 150Nm- 110ftlb And by cone, i mean cone of the lugnut. My bet is that your ZL1 has blue on the cone of the lugnuts... therefore 110ftlb |
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05-17-2012, 11:24 PM
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#11 |
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Drives: 2012 Chevrolet Camaro ZL1 Join Date: Dec 2011
Location: KC, MO
Posts: 438
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