what is the proper torque for the alloy wheels?

 

^^^^^^^^^^^^^^60 ft-lbs

 

if I am not mistaken,
it is written in the owner's manual that the proper Torque is 80lb ft.

I my self torque them to 85 - 90lb ft just to be safe.

 

Correct, factory service manual says 79.6 lb-ft. I torque mine to 100 lb-ft.

 

Torque values probably are minimum, but more important is to check them after a few miles drive. Over torquing if not done slowly on opposites could do damage.

 

Never go more then 5-10% over torque. Its too easy to torque to yield and render the studs useless, as the stud threading usually goes before the lug nut

I torqued my wheels to spec, then after driving for a few miles torque an extra 5 lb-ft

 

Guess I'll tighten mine up a bit.

 

I do mine to 85. Then after the next time I drive the car, I re torque. Always use a + style pattern. I change wheels A LOT LOL so I check this often.

 

+1 for TPColgett.... with torque wrenches being off about 5% (unless you have regularly calibrated wrench), it's better to over torque little bit to 85 than keeping it at 80 lb.ft ==> which could be actually between 76 to 84.

 

HA, and mine is a $29 cheapie special. I double click all four lugs, drive to an event/home, and then double click again.

 

I do the factory spec , also don't want to over torque them, I heard that you could warpt the rotors by over torquing

 

you should tighten them to the factory spec. Every time you tighten the nut too tight, you're stretching it. It's going to break at some point.

 

I torque mine to 80ft/lbs then re-torque after driving for 1000kms.

 

I use 80 Ft-lbs. Then I re-check within a few drives.

That said, with wheels, it's more important to have all the nuts tightened EQUALLY than worrying about a few percent higher or lower. So those "cheapie" torque wrenches are just fine.