KaysRacing

Does anyone know the proper wheel torque for the center lock wheels on a '99 gt3 cup car? I have heard 415 ft-lb?

smsarchitects

I use 350 ft-lb on my 2001

amso3

350 to 360 ft-lbs is the proper torque

martin_Jensen

Is it a 997? If yes the right torque is 460 nm. But anyone now what a 996´s centerlock torque is?

Toby Pennycuff

Interesting, the 2002 Cup manual (page 88) says 490Nm/361.4054531 Lb-Ft for the stub axle and 460Nm/339.2785887 Lb-Ft for the wheel nut on our centerlock wheels. My 2001 manual only provides part numbers (a modified PET) for the car - no torque values.

Same values of 490Nm (stub axle) and 460Nm (wheel nut) are documented in the 2004 RSR manual (page 70).

amso3

Here is the page from the 2002 RS manual.

martin_Jensen

So the 996 has the same torque as the 997. The 996 axle looks not as strong as the 997 axle.
Jerry> Do you have the manuel in a pdf file I could get at kopi of? Im going racing a 996 gt3 cup 2004 is weekend and has no data on car. Hope you can help

jrgordonsenior

IIRC at one time they were specifying 400 ft lbs. on the early 6-cups CL's but backed it down after too many nut failures. 350-360 ft lbs. is fine....

chrcook

My shop told me 340ft*lbs. Tire hasn't fallen of yet...

martin_Jensen

460 Nm is about 340ft lbs?

amso3

Martin

I have the PDF for an 05 Cup. It is 36 MB so I can not e-mail it. I could burn it on DVD and mail it if you like.

TPC Racing

We do 425lb-ft on 996 & 997 Cup cars

smsarchitects

for large files (up to 40Mb) you can use
www.yousendit.com
its free........

claykos

The factory manuals all call for 460 NM (340 ft lb) until the late 997 stuff with the big gallade nuts and spring loaded stub axles.

amso3

Scott

Thanks for the info on Yousendit.com. I uploaded a copy of the 04 GT 3 PDF for the Martin or OP or anyone else who wants it. They need to send me an e-mail address and I send a link to the file.