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Please define spring rate

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Old Oct 1, 2007 | 11:01 PM
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Default Please define spring rate

I have been trying to find a working definition of spring rate.

Sometimes it is in pounds sometime in %.

What it the stock spring rate and .... how do the numbers help you understand ... I believe that it would be how stiff the bounce back rate is?

I really don't know. I guessing here.
Old Oct 2, 2007 | 08:51 PM
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does anyone have a working definition or any info to help a new bee out?

any info about spring rate would be wonderful
Old Oct 4, 2007 | 12:57 PM
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Google is your friend.

How much a spring compresses or extends is determined by its "spring rate." Spring rate is measured in pounds per inch of deflection; for example, 100 pounds per inch. So, say a load of 200 pounds is applied, the spring will deflect 2 inches.
click for full article from Edmunds

Spring rate is always defined in lbs/in.

"%" is only used when comparing springs, as when TRD springs are said to have a spring rate "18% higher in the front, and 26% in the rear over stock" springs.
Old Oct 4, 2007 | 09:07 PM
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Thanks.

This is all greek to me.


But I am learning quick ... SL is great!
Old Oct 4, 2007 | 10:31 PM
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So is Google.
Old Oct 4, 2007 | 11:34 PM
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ok ok i get the point...

It is one thing to just read things on google and it is another to hear feed back from ppl that have been through this stuff at some point.

I have also had great conversations that have helped me understand things in a way that just reading stuff online can't do. Also, there is so much marketing and advertising bull____ out there it is hard to know what to trust when you really don't have a base line of knowledge
Old Oct 4, 2007 | 11:55 PM
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Don't trust anyone on SL, we are all liars and cheats.
Old Oct 5, 2007 | 08:25 AM
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Default Re: Please define spring rate

Originally Posted by ddplion
What it the stock spring rate and .... how do the numbers help you understand ...
Spring rates give you an idea of what to expect as far as ride quality and handling, which you will trade off one for the other. The stock springs (150 lbs/in front, 245 rear) give you a nice soft ride & soak up big bumps. But they also give you big body rolls on sharp turns at speed, nose-up on hard launches & nose-dive on hard stops.

The softest aftermarket springs I know of are the TRD and Tein H-tech. H-tech's are 185/308 - TRD's are almost identical. Higher spring rates mean cornering is greatly improved as well as launch/stop stability but the ride is a little harsher.

Even stiffer spring rates - Progress Sport for example is 200/360 - tell you you'll have even better handling but you'll be feeling most every bump in the road. If you go all-out for handling you can get coilovers with even higher spring rates.
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