lug nut torqure spec

jon08sti · 04-08-2008, 02:55 PM

only 485 miles and I picked-up a 3 inch screw in my tire, I need to know the correct lug nut torque for my 08sti with BBS wheels ??

**tyler_sti** · 04-08-2008, 03:12 PM

I think 80ft lbs is a good point of refference. I usually go to 85. Some people will say a little less, some might say a little more. But I think 80 is a good sweet spot. Haven't had one lug lossen at all on me.

**Digitalfiend** · 04-08-2008, 03:29 PM

I used 72-75 lb-ft on my '05 BBS wheels, so I would assume it is probably pretty close to the same for the '08. No problems at all.

eXstasy · 04-08-2008, 03:35 PM

For pre-08...
aluminum lug nuts

Quote:

The answer in the STi Service Manual. For aluminum wheels it says "see steel wheels".

Steel wheels says: 65.7 ft-lbs of torque.

...but for 2008? Not sure... anyone have a 2008 STi service manual?

Brand · 04-08-2008, 03:53 PM

Owner's manual says 75 ft-lbs. Didn't you guys get one of those?

**Digitalfiend** · 04-08-2008, 03:59 PM

I must have skipped that part. When I found out my car arrived but couldn't get it until the Monday after, I asked for the manual and read it end to end. Must have missed that part. What page is it on?

jon08sti · 04-08-2008, 05:28 PM

the owners manual on page 9-8 gives a torque of 58 to 72 lb-ft but that is for the steel spare tire. If the torque is in the manual for the alum. wheels what page is it?

Brand · 04-08-2008, 07:09 PM

Quote:

Originally Posted by jon08sti

the owners manual on page 9-8 gives a torque of 58 to 72 lb-ft but that is for the steel spare tire. If the torque is in the manual for the alum. wheels what page is it?

9-6 on the bottom right notes that options exist for both temporary and full-sized spares. The instructions however don't change, and since 9-8 doesn't specifically refer to the steelie, I assumed it applied to any wheel being put on the car.

I also confirmed 75ft-lbs with the guys at Discount Tire that mounted my wheels.

**tyler_sti** · 04-08-2008, 07:18 PM

How do they expect you to torque down a wheel on the side of a road, with their crappy lug lever. How would that be possible.. haha

supermarkus · 04-08-2008, 07:21 PM

i carry a breaker bar and a torque wrench in my roadside emergency kit.

008STI · 04-09-2008, 01:21 AM

From the service manual re: Aluminum Wheels:

B: INSTALLATION
1) Remove dirt from the mating surface of the
wheel and brake rotor.
2) Attach the wheel to the hub by aligning the wheel
bolt holes with the hub bolts.
3) Temporarily attach the wheel nuts to the hub
bolts. (Use SUBARU genuine wheel nuts for aluminum
wheels.)
4) Tighten the nuts by hand, making sure the wheel
hub hole is aligned correctly to the guide portion of
hub.
5) Tighten the wheel nuts in a diagonal selection to
the specified torque. Use a wheel nut wrench.
Wheel nut tightening torque:
100 N·m (10.2 kgf-m, 73.8 ft-lb)
CAUTION:
• Tighten the wheel nuts in two or three steps
by gradually increasing the torque on opposing
nuts, until they reach the specified torque.
• Do not push the wrench by foot. Always use
both hands when tightening the nuts.
• Make sure the bolt, nut and the nut seating
surface of the wheel are free from oil.
6) If a wheel is removed for replacement or for repair
of a puncture, retighten the wheel nuts to the
specified torque after driving 1,000 km (600 miles).

jon08sti · 04-09-2008, 12:09 PM

thank you 008STI for the correct info.

04-08-2008, 02:55 PM	#1
jon08sti Amateur STI Driver Car: silver 08 WRX STi Fav Mod: Coming Soon Posts: 16 Join Date: Apr 2008 Trader Rating: (0)	lug nut torqure spec only 485 miles and I picked-up a 3 inch screw in my tire, I need to know the correct lug nut torque for my 08sti with BBS wheels ?? This ad is not endorsed by this member. Please register or login to hide this ad.

04-08-2008, 03:12 PM	#2
tyler_sti Gold Member Car: '07 CMG STI Fav Mod: Not knowing how to "spell" hah Location: los angeles Posts: 3,728 Join Date: Aug 2006 Trader Rating: (15)	Re: lug nut torqure spec I think 80ft lbs is a good point of refference. I usually go to 85. Some people will say a little less, some might say a little more. But I think 80 is a good sweet spot. Haven't had one lug lossen at all on me.

04-08-2008, 03:29 PM	#3
Digitalfiend Super Moderator Car: 08 DGM STI Fav Mod: My wife :) Location: Brooklin, Ontario Posts: 5,539 Join Date: Oct 2003 Trader Rating: (0)	Re: lug nut torqure spec I used 72-75 lb-ft on my '05 BBS wheels, so I would assume it is probably pretty close to the same for the '08. No problems at all.

04-08-2008, 03:53 PM	#5
Brand STI Driver Car: DGM 08 STI Fav Mod: cobb AP Location: Denver Posts: 297 Join Date: Jan 2008 Trader Rating: (1)	Re: lug nut torqure spec Owner's manual says 75 ft-lbs. Didn't you guys get one of those?

04-08-2008, 03:59 PM	#6
Digitalfiend Super Moderator Car: 08 DGM STI Fav Mod: My wife :) Location: Brooklin, Ontario Posts: 5,539 Join Date: Oct 2003 Trader Rating: (0)	Re: lug nut torqure spec I must have skipped that part. When I found out my car arrived but couldn't get it until the Monday after, I asked for the manual and read it end to end. Must have missed that part. What page is it on?

04-08-2008, 05:28 PM	#7
jon08sti Amateur STI Driver Car: silver 08 WRX STi Fav Mod: Coming Soon Posts: 16 Join Date: Apr 2008 Trader Rating: (0)	Re: lug nut torqure spec the owners manual on page 9-8 gives a torque of 58 to 72 lb-ft but that is for the steel spare tire. If the torque is in the manual for the alum. wheels what page is it?

04-08-2008, 07:18 PM	#9
tyler_sti Gold Member Car: '07 CMG STI Fav Mod: Not knowing how to "spell" hah Location: los angeles Posts: 3,728 Join Date: Aug 2006 Trader Rating: (15)	Re: lug nut torqure spec How do they expect you to torque down a wheel on the side of a road, with their crappy lug lever. How would that be possible.. haha

04-08-2008, 07:21 PM	#10
supermarkus Spec C Club Car: 08 STi, SSM Location: Edmonds Washington Posts: 1,441 Join Date: Dec 2005 Trader Rating: (0)	Re: lug nut torqure spec i carry a breaker bar and a torque wrench in my roadside emergency kit.

04-09-2008, 01:21 AM	#11
008STI Amateur STI Driver Car: 08 sti Fav Mod: Coming Soon Posts: 29 Join Date: Feb 2008 Trader Rating: (0)	73.8 ft-lbs from the service manual. From the service manual re: Aluminum Wheels: B: INSTALLATION 1) Remove dirt from the mating surface of the wheel and brake rotor. 2) Attach the wheel to the hub by aligning the wheel bolt holes with the hub bolts. 3) Temporarily attach the wheel nuts to the hub bolts. (Use SUBARU genuine wheel nuts for aluminum wheels.) 4) Tighten the nuts by hand, making sure the wheel hub hole is aligned correctly to the guide portion of hub. 5) Tighten the wheel nuts in a diagonal selection to the specified torque. Use a wheel nut wrench. Wheel nut tightening torque: 100 N·m (10.2 kgf-m, 73.8 ft-lb) CAUTION: • Tighten the wheel nuts in two or three steps by gradually increasing the torque on opposing nuts, until they reach the specified torque. • Do not push the wrench by foot. Always use both hands when tightening the nuts. • Make sure the bolt, nut and the nut seating surface of the wheel are free from oil. 6) If a wheel is removed for replacement or for repair of a puncture, retighten the wheel nuts to the specified torque after driving 1,000 km (600 miles).

04-09-2008, 12:09 PM	#12
jon08sti Amateur STI Driver Car: silver 08 WRX STi Fav Mod: Coming Soon Posts: 16 Join Date: Apr 2008 Trader Rating: (0)	Re: 73.8 ft-lbs from the service manual. thank you 008STI for the correct info. This ad is not endorsed by this member. Please register or login to hide this ad.