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Author Topic: Too Small Torque Wrench
Jim Venable
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Might there be a technique to use for those of us who don't possess a torque wrench that reads to 200 for some of the higher required torque settings such as the rear axel?

I think I asked the question correctly.

Jim

Muda Verified Driver Made Donation to Website
ComingToAMirrorNearYou

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First time I borrowed one.
Then went on eBay and bought one.
If you are going to be doing this you'll need one.

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Muda Motorsports
"We're all here 'cause we're not all there."

Tom's Double O Verified Driver
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Harbor Freight 3/4" good for 250# or 300#...I think it cost $79

Probabaly not the best but for what you need it for it will work.

or a beer and a friend.

Tom

Casey Z Verified Driver Made Donation to Website
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Skip the torque wrench and get a good air impact rated at 250-300 ftpds. Let it rip and you are set.

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Z Brothers Racing / East Street Auto

Casey Z - 1.6 Kettle
MidDiv National #13

Keith in WA Verified Driver Made Donation to Website
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My 1/2" goes 150#. I torqued it until it clicked, then gave it a bit of extra heave-ho with a jack handle on the 2 foot straight bar type non-ratcheting socket wrench handle.

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Keith Novak
(Will work for tires)

Kent Carter Verified Driver Made Donation to Website
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simple math.

Torque equals F x D where F is force and D is the length of the moment arm.

Weigh yourself in pounds. That is F. Divide the torque you need by your weight. That tells you in feet where to stand on the wrench/cheater bar.

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Do I turn my 99 Hard S into a killerfast SM or seek a donor?

G. Davis Verified Driver Made Donation to Website
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quote:
Originally posted by Kent Carter:
...That tells you in feet where to stand on the wrench/cheater bar.

Or for some of us, inches [laughing]

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Glenn Davis

Keith in WA Verified Driver Made Donation to Website
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The torque range is pretty broad though so ultimate precision isn't really required. I shoot for middle to top of the range.

123 to 159 ft-lbs 29 mm front hub
159 to 217 ft-lbs 29 mm rear hub
174 to 235 ft-lbs 32 mm rear hub (99+)

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Keith Novak
(Will work for tires)

joeracerx95 Verified Driver
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FWIW, a magazine recently did a test of the accuracy of several torque wrenchs and the Harbor Freight unit was suprisingly accurate. I wouldn't hesitate to get one based on this testing.

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Never underestimate a man that owns a welder and a Sawzall.

Jim Venable
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Kent,

Now that is way too cool. Should have asked my engineer kid as he's always trying to explain race car designs to me by utilizing math other than 1 + 1 = 2. I say trying because it often sounds like I'm listening to a foreign language.

Jim

springfielddyno Verified Driver
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quote:
Originally posted by Kent Carter:
simple math.

Torque equals F x D where F is force and D is the length of the moment arm.

Weigh yourself in pounds. That is F. Divide the torque you need by your weight. That tells you in feet where to stand on the wrench/cheater bar.

technically, the force has to be excatly 90 degrees to the moment arm for this to work... other wise you'll need a little sin...

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Regards,
Sam H.
www.springfielddyno.com

Gibscreen Verified Driver Series Champ
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quote:
Originally posted by Kent Carter:
simple math.

Torque equals F x D where F is force and D is the length of the moment arm.

Weigh yourself in pounds. That is F. Divide the torque you need by your weight. That tells you in feet where to stand on the wrench/cheater bar.

This is the method we used. My brother (the runt) weighs 140 so he stood on the end of an 18" breaker bar. I then checked it by standing at 12".

P.S. We used a 1 1/8" socket because it fit just a hair tighter on the nut. Felt like it was made for it.

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Rob Gibson
RJ Racing
2010 NASA Nationals TTE Champion
2008/2009 WERC Champion
2007 NASA SoCal SM Champion
rjracing.net
Weekend-Racer.com

Kent Carter Verified Driver Made Donation to Website
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quote:
Originally posted by springfielddyno:
quote:
Originally posted by Kent Carter:
simple math.

Torque equals F x D where F is force and D is the length of the moment arm.

Weigh yourself in pounds. That is F. Divide the torque you need by your weight. That tells you in feet where to stand on the wrench/cheater bar.

technically, the force has to be excatly 90 degrees to the moment arm for this to work... other wise you'll need a little sin...
true... but I was built for sin!

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Do I turn my 99 Hard S into a killerfast SM or seek a donor?

   

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