S2000 Under The Hood S2000 Technical and Mechanical discussions.

foot lbs to inch lbs

Old Mar 22, 2008 | 10:20 AM
  #1  
shotiable's Avatar
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From: sunny suisun
Default foot lbs to inch lbs

this is an odd question about foot pounds and inch pounds.

i got a torque wrench that is calibrated with inchpounds instead of foot pounds. i was wondering if i did the conversion right. i went through google and found out that 1 inch pound is equal to 0.083333333333 foot lbs.

i need to torque a bolt to 14 foot lbs and this is what i came up with:

inch/lbs = 1 inch/lb x 14 ft/lbs
0.083 ft/lbs

inch/lbs = 1 inch/lb x 14
0.083
inch/lbs = 1.162

somehow it didnt sit right with me... and i just wanted to check if anyone could tell me how to actually do all this correctly....

so if someone could double check what i did coz i think i did something wrong... please let me know
TIA
shotiable

sorry i didnt mean to make this a math forum
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Old Mar 22, 2008 | 11:10 AM
  #2  
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From: Granville OH
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A foot-pound is actually a pound-force foot, or lbf-ft. We tend to say it in simple terms. One lbf-ft is the torque exerted around a point that is equal to one pound of force exerted on a lever one foot away.

one lbf-ft is equal to 12 lbf-in. (yes, lbf-in is the true name for inch-pounds).

Therefore, 14 foot-pounds (or actually 14 lbf-ft) is equal to 14 x 12 = 168 lbf-in.

I hope this clarifies things.
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Old Mar 22, 2008 | 11:41 AM
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^ cliff notes

multiply by 12
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Old Mar 22, 2008 | 12:17 PM
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Yeah to do it with the figures you gave,
you take the 14 you need and divide it by the .0833333333 and that will give you roughly 168.
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Old Mar 22, 2008 | 12:18 PM
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not great at basic math eh?

What exactly did you google? You know google has a great conversion calculator built in right? For kicks I googled "14 ft lbs in inch lbs", you should try it
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Old Mar 22, 2008 | 01:56 PM
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From: sunny suisun
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Originally Posted by deathsled,Mar 22 2008, 12:18 PM
not great at basic math eh?

What exactly did you google? You know google has a great conversion calculator built in right? For kicks I googled "14 ft lbs in inch lbs", you should try it
lol how embarrasing. but yeah i get it now, thanks guys
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