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Suspension and Brakes
I wish someone wrote a book on suspension. What spring rate should I run?
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<blockquote data-quote="MachSVT" data-source="post: 1566500" data-attributes="member: 31918"><p>There is a lot of different takes, here. One thing I wanted to point out to anyone reading this that might be confused is spring rate. How do you translate stock divorced spring rate / ride to a coil over spring setup?</p><p></p><p>For example, a 600lb divorced spring in the rear is roughly 50% effective due to it's placement midway on the lower control arm vs. a 200lb coil over, which is actually mounted behind the rear axle vertical centerline, will have (don't quote me, do your research) around 115% effective wheel rate.</p><p></p><p>In that example, the 600lb divorced spring has a 300lb wheel effective rate, while the coil over spring will have a 230lb effective wheel rate.</p><p></p><p>If coil overs are for you (and you like your current ride quality), simply take your current stock spring rate and do the math to find your coil over spring rate.</p><p></p><p>You can afford to go up in effective wheel rate while still keeping a better than stock ride because any loss in effective wheel rate (due to a divorced spring setup) means the % loss is putting pressure on your control arm pivot point = suspension bind. Inversely, the closer the wheel effective rate is to the coil spring rate, the less suspension bind you will have.</p></blockquote><p></p>
[QUOTE="MachSVT, post: 1566500, member: 31918"] There is a lot of different takes, here. One thing I wanted to point out to anyone reading this that might be confused is spring rate. How do you translate stock divorced spring rate / ride to a coil over spring setup? For example, a 600lb divorced spring in the rear is roughly 50% effective due to it's placement midway on the lower control arm vs. a 200lb coil over, which is actually mounted behind the rear axle vertical centerline, will have (don't quote me, do your research) around 115% effective wheel rate. In that example, the 600lb divorced spring has a 300lb wheel effective rate, while the coil over spring will have a 230lb effective wheel rate. If coil overs are for you (and you like your current ride quality), simply take your current stock spring rate and do the math to find your coil over spring rate. You can afford to go up in effective wheel rate while still keeping a better than stock ride because any loss in effective wheel rate (due to a divorced spring setup) means the % loss is putting pressure on your control arm pivot point = suspension bind. Inversely, the closer the wheel effective rate is to the coil spring rate, the less suspension bind you will have. [/QUOTE]
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I wish someone wrote a book on suspension. What spring rate should I run?
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