04-03-2010, 07:45 AM
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#1
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Registered User
Join Date: Dec 2006
Location: Tennessee
Posts: 133
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Torque Specs for wheel lugs
What are the torque specs for the wheel lugs? Is is 96 ft/lbs?
2007 Boxster S w/18" wheels.
Thanks.
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04-03-2010, 11:17 AM
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#2
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Registered User
Join Date: Apr 2007
Location: Orange County, CA
Posts: 168
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Quote:
Originally Posted by Soetekouw
What are the torque specs for the wheel lugs? Is is 96 ft/lbs?
2007 Boxster S w/18" wheels.
Thanks.
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You are correct.
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'08 987S, 6 Speed, Guards Red, Black Interior, 19" Chrome Wheels, Clear Bra, Painted Side Vents, Dension Ipod, Clear Side Markers, Cayman Sports Tip, Red Tail Lights
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04-03-2010, 01:50 PM
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#3
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Registered User
Join Date: Jun 2005
Location: Surf City, NC
Posts: 1,079
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Not to be picky, but torque is measured in lb/ft. Work is in ft/lbs.
I know, Everybody says it. Just the engineer in me trying to get back out.
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Mike
04 Boxster S - Basalt/Savanna, 6sp, Carrera lites, hardtop
70 914-6 - Black over tan, original/stock
PCA since 1970
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04-03-2010, 03:40 PM
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#4
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Registered User
Join Date: Jan 2007
Location: BC
Posts: 1,340
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Actually, it's ft-lb
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2001 Boxster, 5 spd, Seal Grey
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04-03-2010, 04:21 PM
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#5
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07 Carrera S Cab
Join Date: Nov 2005
Location: New Jersey
Posts: 2,273
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Ft/lb is to measure energy. Lb/ft is to measure Torque.
http://en.m.wikipedia.org/wiki/Pound-foot_(torque)?wasRedirected=true
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Current: 07 Carrera S Cab in Midnight Blue
Previous: 01 Boxster in Arctic Silver, 86 944 in Guards Red
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04-03-2010, 07:10 PM
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#6
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Registered User
Join Date: Oct 2008
Location: San Diego
Posts: 434
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Jesus H. Who let the engineers in?
Set your torque wrench to 96 whatever-the-eff's and you're good to go.
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1999 Carrera 4 • Aero kit • 4" UD Pulley
My Corvette doesn't leak oil... it sweats horsepower.
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04-04-2010, 05:30 AM
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#7
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Registered User
Join Date: Dec 2006
Location: Tennessee
Posts: 133
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Thanks all. 96 xx/xx it is.
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04-04-2010, 07:30 AM
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#8
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Registered User
Join Date: Jan 2007
Location: BC
Posts: 1,340
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Quote:
Originally Posted by Soetekouw
Thanks all. 96 xx/xx it is.
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Just don't set it to 96 Nm
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2001 Boxster, 5 spd, Seal Grey
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04-12-2015, 07:00 AM
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#9
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Registered User
Join Date: Jul 2014
Location: Canada
Posts: 487
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You guys should have let Jimmy Carter get the Metric system in the US. Soo much easier.
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99 Boxster sold
88 944S sold
Xpit Formula Four sold
95 Integra Solo I sold
71 Opel GT sold
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03-28-2019, 07:36 AM
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#10
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Need For Speed
Join Date: Feb 2013
Location: Funville
Posts: 2,112
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Quote:
Originally Posted by clickman
Just don't set it to 96 Nm 
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My torque wrench does not have ft/lbs on it, it has newton-meters. So I need to set my torque wrench to 130 nm to get 96 ft/lbs, correct?
https://www.metric-conversions.org/energy-and-power/foot-pounds-to-newton-meters.htm
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2003 Boxster S
| 987 Air Box | K&N Air Filter | 76mm Intake Pipe| 996 76mm TB | 997 Distribution T | Secondary Cat Delete Pipes | Borla Muffler | NHP 200 Cell Exhaust Headers |
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03-28-2019, 07:53 AM
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#11
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Registered User
Join Date: Dec 2015
Location: Denver
Posts: 866
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Quote:
Originally Posted by KRAM36
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I attended a recent porche tech inspection training offered by PCA; they stated new specs from Porche is 100 ft/lbs old manuals state 96 ft/lbs.
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5280 Cruising @High Altitude
Seal Gray & K&N Filter
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03-28-2019, 08:39 AM
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#12
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Need For Speed
Join Date: Feb 2013
Location: Funville
Posts: 2,112
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Quote:
Originally Posted by Ciao
I attended a recent porche tech inspection training offered by PCA; they stated new specs from Porche is 100 ft/lbs old manuals state 96 ft/lbs.
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So then I would want to set my torque wrench to 135.5 nm?
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2003 Boxster S
| 987 Air Box | K&N Air Filter | 76mm Intake Pipe| 996 76mm TB | 997 Distribution T | Secondary Cat Delete Pipes | Borla Muffler | NHP 200 Cell Exhaust Headers |
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04-12-2015, 09:17 AM
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#13
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Registered User
Join Date: May 2011
Location: Miami florida
Posts: 1,591
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Theres a revised spec for the wheel bolts, something above 100 ft-lbs. I dont know if that spec was retroactive to all models.
Also, the threads are lubricated but the sherical cap is not.
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Current car
2000 Boxster 2.7l red/black
Previous cars
1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
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04-12-2015, 09:59 AM
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#14
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Registered Boxster abuser
Join Date: Oct 2011
Location: socal
Posts: 1,014
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All interesting but when was the last time you calibrated your torque wrench?
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04-12-2015, 07:23 PM
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#15
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Registered User
Join Date: Nov 2009
Location: Winnipeg MB
Posts: 2,485
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Quote:
Originally Posted by healthservices
All interesting but when was the last time you calibrated your torque wrench? 
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About a year ago. Why do you ask?
Having said that, I now use a torque stick on my MG725. I checked it with the torque wrench the first few times but it was always so close I stopped checking.
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'99 black 986
Last edited by Mark_T; 04-12-2015 at 07:26 PM.
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04-12-2015, 07:33 PM
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#16
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Registered Boxster abuser
Join Date: Oct 2011
Location: socal
Posts: 1,014
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I used to have mine checked yearly because I used them so much. I'm surprised how off they can get. I actually wore a torque wrench to the point it was no longer able to be calibrated.
For wheels I just told the techs to buy a cheap harbor freights and compared the torque value with a known good one every once in a while. No need to wear out a expensive torque wrench on lug nuts.
Last edited by healthservices; 04-12-2015 at 07:38 PM.
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04-13-2015, 05:33 AM
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#17
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Registered User
Join Date: Sep 2012
Location: UK
Posts: 140
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Fitting wheels
Hello I live in the UK. I have never in my life used a torque wrench on the wheels of any of my cars. I am now just on 66. The car I have now is a Boxster S 2002. The first thing I do when I buy a new car is take all the wheels off so I can copper grease the threads, then use a spider to tighten. This has been my procedure for all those years.
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03-28-2019, 08:56 AM
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#18
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Rich
Join Date: Dec 2017
Location: IL
Posts: 40
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Quote:
Originally Posted by healthservices
All interesting but when was the last time you calibrated your torque wrench? 
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This is the accuracy you need with each lug nut:
https://www.youtube.com/watch?v=89LmNvN7jTc
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04-12-2015, 11:58 AM
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#19
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Registered User
Join Date: May 2011
Location: Miami florida
Posts: 1,591
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I check my click wrenches against my beam wrench all the time.
__________________
Current car
2000 Boxster 2.7l red/black
Previous cars
1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
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04-12-2015, 12:50 PM
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#20
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I am my own mechanic....
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,432
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When I started using a torque wrench for this, I was ashamed how far I was over torquing. Made the car feel or ride different I swear.
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'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
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