LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

inch pounds to foot pounds??

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Old Jan 28, 2004 | 03:57 PM
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Zerosheaven's Avatar
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inch pounds to foot pounds??

how do you convert inch pounds to foot pounds??? is ther some kinda online calculator thing i can use?
Old Jan 28, 2004 | 04:02 PM
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Just multiply by 1ft/12" thus canceling the inches, leaving you with feet.

So 24 inch-pounds * (1 foot / 12 inches) = 2 foot-pounds

Chris
Old Jan 28, 2004 | 04:03 PM
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LOL!!

divide by 12!

Old Jan 28, 2004 | 05:06 PM
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hmmm....thats easy....maybe a little TOO easy....(looks around him suspiciously.....)
Old Jan 28, 2004 | 05:27 PM
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Originally posted by Zerosheaven
hmmm....thats easy....maybe a little TOO easy....(looks around him suspiciously.....)
Blame the Brits. They started the whole thing.

Yep, it's that easy. 1 ft-lb = 12 inch-pounds, and 12 in-lb = 1 ft-lb.

Don't ask about Newton-meters.
Old Jan 29, 2004 | 11:26 AM
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If you would like to be able to convert units of measurement, there is a cool program called Convert that will allow you to do this easily. I use it all of the time for difficult conversions. You can download it for free here:

http://www.joshmadison.com/software/convert/

I think you guys will like it.

Brian
Old Jan 29, 2004 | 11:39 AM
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That program rocks, I use it all the time at work.
Old Jan 29, 2004 | 01:31 PM
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another confusing thing is it's actually pounds per foot, or pounds per inch. that's why it's written 2 lbs/ft not 2 ft/lb

everybody says foot pounds and inch pounds but it's really 2 lbs of rotational force on a lever assumed to be 12" long

so 350 lbs/ft is like having 350 lbs on the end of a 12" lever arm exerting a rotational force.
Old Jan 29, 2004 | 01:36 PM
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I use that program at work too.

I always thought that it was an inhouse developed application though, guess not

-brent
Old Jan 29, 2004 | 01:45 PM
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Originally posted by MrBigXL
another confusing thing is it's actually pounds per foot, or pounds per inch. that's why it's written 2 lbs/ft not 2 ft/lb

everybody says foot pounds and inch pounds but it's really 2 lbs of rotational force on a lever assumed to be 12" long

so 350 lbs/ft is like having 350 lbs on the end of a 12" lever arm exerting a rotational force.
Is it not lbs times the distance rather than divided by the distance? Force times distance is definition of torque. Just the notation I question: your verbal concept is correct.
Old Jan 29, 2004 | 03:29 PM
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Originally posted by OldSStroker
Is it not lbs times the distance rather than divided by the distance? Force times distance is definition of torque. Just the notation I question: your verbal concept is correct.
Right. It's "foot pounds" or "ft*lbs", not "feet per pound" which is "ft/lbs".
Old Jan 29, 2004 | 03:34 PM
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Originally posted by Mikey97Z
Right. It's "foot pounds" or "ft*lbs", not "feet per pound" which is "ft/lbs".
Correct! FT-LBS
Old Feb 2, 2004 | 09:37 PM
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Originally posted by OldSStroker
Is it not lbs times the distance rather than divided by the distance? Force times distance is definition of torque. Just the notation I question: your verbal concept is correct.
sorry, the / is not a division sign, but 'per' like 350 lbs per foot of torque

Originally posted by Mikey97Z
Right. It's "foot pounds" or "ft*lbs", not "feet per pound" which is "ft/lbs".
no that's wrong. it is vernacular and actually incorrect.

Originally posted by 94 NO TOP Z
Correct! FT-LBS
wrong again bucko, see my first post

when all else fails... HowThingsWork

now do you believe me?
Old Feb 2, 2004 | 09:59 PM
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Originally posted by MrBigXL
sorry, the / is not a division sign, but 'per' like 350 lbs per foot of torque



no that's wrong. it is vernacular and actually incorrect.



wrong again bucko, see my first post

when all else fails... HowThingsWork

now do you believe me?
No, you are wrong.

Read the page
HowThingsWork

it is ft*lbs NOT ft/lbs or ft per lb.
Old Feb 2, 2004 | 10:08 PM
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Do I believe you? Absolutely not. 350 lbs/ 1 foot is a spring rate, not a measure of torque. And 350 lbs per foot of torque? Doesn't make any sense to me, 'of torque'. I thought torque was what we were talking about, you can't have torque defining itself.

You should actually go read howstuffworks yourself before you attempt to use it as a reference disproving a degreed engineer and two other guys in agreement with him. Not suggesting that engineers don't make mistakes, but thats not the case here.

Edit* BTW, i gave you the benefit of the doubt that you may have found an error at howstuffworks and looked there for myself. I don't see anything there supporting your claim.

(from howstuff works)
torque equals force multiplied by distance
.....
English units of torque are pound-inches or pound-feet
pounds-inches or pounds-feet which is the same as pounds*inches and pounds*feet respectively, NOT pounds per inch, NOT pounds per foot, NOT pounds/inch, and finally not pounds/ft.

-brent

Last edited by 94formulabz; Feb 2, 2004 at 10:17 PM.



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