lurchphil

I have a 2011 GTS with center lock wheels which is driven only on streets, no tracking. I have seen two torque specifications for the wheels. 370 ft/lbs or 440 fr/lbs. Which is applicable?

jhbrennan

How about a third choice?

For track use centerlock torque is now 600nm/444 ftlb

Seems to be more info in the GT3 forum.
https://rennlist.com/forums/997-gt2-...read-this.html

TxBob74

PCNA issued a letter on 4/15/13 enclosing a booklet dated 4/1/13. The booklet applies to all center lock wheels for 2009-2013 GTS/GT3/Turbo/GT2 models. Proper central bolt tightening torque is 440 ft-lb (600Nm).

My 2011 GTS manual included this torque. Earlier model years had a lower torque that, according to the 4/1/13 letter, could result in cracked hubs during track use.

love2drive

You'll need 450 ft-lbs to put center locks back on.
Make sure the locking mechanism is all the way out after you're done. Only then will you be sure that the wheel is locked.
Here's a link of a brake job I did for my 2012 GTS. It shows which torque wrench I recommend.
https://rennlist.com/forums/997-foru...997-2-gts.html

Good Luck

lurchphil

Thanks for the responses! They confirmed my expectation that 440 or 444 was the magic number. Love2drive's link is very helpful.