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Triggertech spring
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<blockquote data-quote="ntsqd" data-source="post: 2865880" data-attributes="member: 93138"><p>Cutting coils does make the spring itself stiffer. That can be proven with the math formula that describes coil springs.</p><p></p><p>The spring is only part of the whole though. By shortening the spring's overall length you reduce the pre-load on it. If a spring takes 1 lb to compress it one inch it has a spring rate of 1 lbs-in. Say that you have to compress it 4 inches to install it then it has 4 in-lbs of of pre-load already on it before you try to compress it further. To make the spring move another inch in compression you have to apply 5 lbs of force to it. 4 lbs to overcome the pre-load and another lb to move it that further inch of compression.</p><p></p><p>When you cut the spring so that it only has 2 lbs of pre-load on it when installed the spring rate itself has gone up, but you've reduced the pre-load by half. Let's assume that the cut spring's new spring rate is 1.5 lbs-in. Now you only need to apply 3.5 lbs of force to make the spring move another inch.</p></blockquote><p></p>
[QUOTE="ntsqd, post: 2865880, member: 93138"] Cutting coils does make the spring itself stiffer. That can be proven with the math formula that describes coil springs. The spring is only part of the whole though. By shortening the spring's overall length you reduce the pre-load on it. If a spring takes 1 lb to compress it one inch it has a spring rate of 1 lbs-in. Say that you have to compress it 4 inches to install it then it has 4 in-lbs of of pre-load already on it before you try to compress it further. To make the spring move another inch in compression you have to apply 5 lbs of force to it. 4 lbs to overcome the pre-load and another lb to move it that further inch of compression. When you cut the spring so that it only has 2 lbs of pre-load on it when installed the spring rate itself has gone up, but you've reduced the pre-load by half. Let's assume that the cut spring's new spring rate is 1.5 lbs-in. Now you only need to apply 3.5 lbs of force to make the spring move another inch. [/QUOTE]
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