jambo
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| posted on 27/2/07 at 03:01 PM |
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spring rate?
hello, does any ony know a formula for working out a spring rate for a coilover in a vertical position
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ecosse
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| posted on 27/2/07 at 03:13 PM |
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Have a look at THIS thread.
Cheers
Alex
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kb58
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| posted on 27/2/07 at 03:51 PM |
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Stand on the spring, measure how much it compresses, rate = lbs(kg) / in(cm)
Being a "coil-over" spring has nothing to do with it, however, when you measure it, take the spring off the shock, else the stiction will
give a wrong value.
Mid-engine Locost - http://www.midlana.com
And the book - http://www.lulu.com/shop/kurt-bilinski/midlana/paperback/product-21330662.html
Kimini - a tube-frame, carbon shell, Honda Prelude VTEC mid-engine Mini: http://www.kimini.com
And its book -
http://www.lulu.com/shop/kurt-bilinski/kimini-how-to-design-and-build-a-mid-engine-sports-car-from-scratch/paperback/product-4858803.html
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jambo
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| posted on 27/2/07 at 03:58 PM |
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sorry lads my question is not clear,i know how to measure the value of a spring what i want to work out is what spring weight to give the correct ride
using say the weight of the car etc.
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Tralfaz
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| posted on 27/2/07 at 08:03 PM |
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All sorts of variables in play there.....
FWIW I am aiming for a 1:1 motion ratio on my coilovers with the spring rate equal to the corner weight.
On my BEC I am guessing....
500lbs on Front 'Axle' (All up w/driver) - 250lb springs.
Brian
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kb58
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| posted on 27/2/07 at 09:30 PM |
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quote:
Originally posted by jambo
sorry lads my question is not clear,i know how to measure the value of a spring what i want to work out is what spring weight to give the correct ride
using say the weight of the car etc.
Define "correct". Therein lies the problem; it's a personal decision. If you want a *general* guideline, make the wheel rate 1/2 the
unsprung weight.
Mid-engine Locost - http://www.midlana.com
And the book - http://www.lulu.com/shop/kurt-bilinski/midlana/paperback/product-21330662.html
Kimini - a tube-frame, carbon shell, Honda Prelude VTEC mid-engine Mini: http://www.kimini.com
And its book -
http://www.lulu.com/shop/kurt-bilinski/kimini-how-to-design-and-build-a-mid-engine-sports-car-from-scratch/paperback/product-4858803.html
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