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Tech & Fab
Coil over spring rates
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<blockquote data-quote="candocantrell" data-source="post: 708716" data-attributes="member: 9432"><p>Edit: Only thing I've not fully grasped in its entirety that sticks out to me is the 200/200 being the same rate spring on top and bottom. The cool thing about dual rate coilovers is adjusting your dual rate stop ring so that after a certain amount of up travel, the stop ring kicks in on the lower spring to greatly increase dampening or whatever term you want to use for getting stiffer. So the idea is to have your dual rate stop ring set so that if you are hauling ass down a mildly bumpy trail you are riding on the softer top spring, but when the uptravel begins to get worse when going over bigger stuff, the dual rate stop ring makes the lower spring kick in and further helps to stabilize the rig until it droops back out. hence why I would think it would be ideal to have a lighter top spring than lower spring, like 175/225 or something like that. But like I said, I'm just an amateur....so don't take anything I say to the bank. Lol</p></blockquote><p></p><p>That's the thing about stacking springs in series... although both springs have same spring rate individually, their equivalent spring rate is calculated like this, with K representing spring rate, 1/K_eq=(1/K_1)+(1/K_2). </p><p></p><p>It is counter intuitive but that is how the math works. </p><p></p><p>My question is more about whether or not the 100 lb/in equivalent rate is a good number to shoot for based on my weight and shock travel numbers. </p><p></p><p>I appreciate the reply!!!</p><p>[/QUOTE]</p>
[QUOTE="candocantrell, post: 708716, member: 9432"] Edit: Only thing I've not fully grasped in its entirety that sticks out to me is the 200/200 being the same rate spring on top and bottom. The cool thing about dual rate coilovers is adjusting your dual rate stop ring so that after a certain amount of up travel, the stop ring kicks in on the lower spring to greatly increase dampening or whatever term you want to use for getting stiffer. So the idea is to have your dual rate stop ring set so that if you are hauling ass down a mildly bumpy trail you are riding on the softer top spring, but when the uptravel begins to get worse when going over bigger stuff, the dual rate stop ring makes the lower spring kick in and further helps to stabilize the rig until it droops back out. hence why I would think it would be ideal to have a lighter top spring than lower spring, like 175/225 or something like that. But like I said, I'm just an amateur....so don't take anything I say to the bank. Lol [/quote] That's the thing about stacking springs in series... although both springs have same spring rate individually, their equivalent spring rate is calculated like this, with K representing spring rate, 1/K_eq=(1/K_1)+(1/K_2). It is counter intuitive but that is how the math works. My question is more about whether or not the 100 lb/in equivalent rate is a good number to shoot for based on my weight and shock travel numbers. I appreciate the reply!!! [/QUOTE]
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