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Old 01-27-2005, 02:56 PM   #1
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Comparing different manufactures springs

Is it possible to compare different manufacturers spring via some conversion factor?

I have some springs that I believe are rated in something like "kg/s" and i want to compare them to some AE springs I have which are in "lbs".

Thanks.
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Old 01-27-2005, 06:06 PM   #2
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http://www.rcingreece.com/index.asp?...ing_comparison
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Old 01-27-2005, 07:50 PM   #3
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Thanks for the info. What does gf stand for?

my springs are Academy springs and have these ratings:

1.8 kgs
2.2 kgs
2.8 kgs

anyway to convert these?
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Old 01-27-2005, 08:46 PM   #4
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www.onlineconversion.com
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Old 01-28-2005, 06:40 AM   #5
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anyone know what gf stands for?

I know that the springs won't be a direct conversion to lbs as they are alot stiffer than what the conversion would say.
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Old 01-28-2005, 08:06 AM   #6
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gf is gram force, usually per square mm.

to convert spring rates in gf/mm to lbs/in multiply by .0559968.

ex. 200 gf/mm * .0559968 = 11.2 lbs/in.

sounds like academy is using kg/cm which would be a stiffer spring rate than a gf/mm rating. just use the kilogram force - pound force conversion on online conversion to get the conversion factor.

enjoy!
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Old 01-28-2005, 09:56 AM   #7
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Thanks for the info.

So basically I will just mutiply the kg that I got from Academy by

5.59968 or 5.6 approximately.

so my spring rates then are:

1.8kgs = 10lbs
2.2kgs = 12.3lbs
2.8kgs = 15.7lbs

Thanks for the info guys. So basically I got some 10, 12, and 16lbs springs on a rough estimate. These should work well with the other sets I have then from AE as I got from Red up to yellow from them. Just need Gold and I will have a great usable range ( never did use 40lbs fronts ).

Thanks again for all your help guys!
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Old 01-28-2005, 11:02 AM   #8
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I got some other info here from another board:

"I believe the measurement you have is kilogram-metres

The conversion you want is foot-pounds

To convert kilogram-metres to foot-pounds multiply by 7.233

So, 1.8 * 7.233 = 13.0194 ft/lbs which would not be unusual for a Touring Car. Off the top of my head I believe that is what the Blue AE TC3 spring is rated at."


I wonder if this is correct?
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