rear coilover spring rates

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chrisroberts
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Post Mon Apr 25, 2011 12:56 pm

right I'm sure a few of you will know this.. on my KW's i currently have a 180x100 spring on the trailing arm. Now to keep things the same if i was to run coilovers what spring rate would i need? i know it would be quite a bit softer but by how much?

Cheers
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BadDave
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Post Mon Apr 25, 2011 5:55 pm

IIRC Gareth buses 400lb springs on the rear of his touring(not sure what spring length) with Leda coilovers

I use 275Lb springs 10 1/2" long on the back of mine for "normal" fast road use,with Gaz golds
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chrisroberts
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Post Mon Apr 25, 2011 11:52 pm

Thanks for the reply. The ones i have at the moment are 150kg or 400lbs. Mines probably a bit lighter than a touring. Might try a 300 lb one. see how it goes.
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UweM3
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Post Tue Apr 26, 2011 9:17 am

chrisroberts wrote:Thanks for the reply. The ones i have at the moment are 150kg or 400lbs. Mines probably a bit lighter than a touring. Might try a 300 lb one. see how it goes.
150kgs = 400lbs??? are you sure?
KW springs are usually in N
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chrisroberts
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Post Tue Apr 26, 2011 10:34 am

UweM3 wrote:
chrisroberts wrote:Thanks for the reply. The ones i have at the moment are 150kg or 400lbs. Mines probably a bit lighter than a touring. Might try a 300 lb one. see how it goes.
150kgs = 400lbs??? are you sure?
KW springs are usually in N
Cheers Uwe, you will be right. I was guessing it was in KG as in my head 150N is around 850lbs which was making me think Bl***Y HELL. In fact they're 180N which is like 1000lbs?

I'll have to get a tape measure out and measure from the pivot point to the inboard spring location and mount for the shock. Work it out from there and see how it goes.
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GeoffBob
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Post Tue Apr 26, 2011 1:55 pm


Image

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MarkT
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Post Mon May 02, 2011 1:59 pm

350lb is a rate I have seen being used quite regularly.
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chrisroberts
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Post Tue May 03, 2011 10:58 pm

Thanks for the reply guys, and thanks for the link/lesson there Geoff, much appreciated. I have been following the R5 thread and must say it's bl**dy impressive to say the least! It's nice to know that there are some clued up people on here willing to help out!

Thanks again!
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