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does cutting linear rate springs change the "rate" of the spring? ive read that it doesnt but have been told that it does too, my friend just cut the springs in his mercedes with linear rate springs and it still rides the same as it did before so im leaning towards that it doesnt change the spring rate but i figured you guys would know more about it than i do
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Ill see if I can find the thread but I remember I read a really discussion one time and if you look at the equation to determine spring rates when you cut it shorter it raises slightly, like I said though ill see if I can find the thread.Originally posted by JC.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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The rate is the same throughout a linear spring so cutting it doesn't change the effective rate as much as a linear spring. You probably won't notice a difference depending how long the spring is and how much it's chopped.
Downward force = flexibility X strain
doward force and flexibility are the same for a spring and the same spring cut (flex might not be the right word, doesn't matter just go with it). Strain is the change in length compared to original length. 5" spring compressed 1" vs. 3" spring compressed 1". 1/5 is .2 and 1/3 is .333. Greater strain on the shorter spring = stiffer
/physics and shit
IG: @_olliee
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yeah, ive just had a hard time assigning a number to it i guess haha, because ive pretty much read this a bunch of places:Originally posted by Ollie View Post
"100psi spring rate, spring has 5" of compression.
At 500lbs weight the spring will be totally compressed and the coils will be touching each other.
Cut 1" off,
You still have 100psi rate but only 4" of compression.
At 400lbs the spring will be totally compressed."
but then ive also read this too
"Imagine a 10 coil spring sitting upright on a table. You place 200 lbs on the spring. The weight moves the top of the spring down 1 inch. So your spring rate is 200 lbs per inch. Each one of the ten coils has shrunk 1/10 of an inch.
Now cut the spring in half. You have 5 coils now. When you place the 200 lbs on it, each coil still shrinks 1/10 of an inch. (same diameter coil, same amount of deflection.) Because there's only 5 coils, the spring will only move down 5/10 of an inch.
This gives you a new spring rate of 400 lbs per inch. Twice as short = twice as stiff."
theres probably a lot more to it then that, all i know is the car still rides the same as it did before after getting 4 coils cut off all 4 corners
this is the car that brought all of this up though after i posted a picture of it on a local facebook group and all the people who have probably never had cut springs before started bitching about how bad it is to do it
the $600 '85 mercedes 190e
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Fix your picture! :POriginally posted by JC.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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