Suspension/Wheels/Tires/Brakes

why you DONT cut springs

Old Apr 7, 2008 | 06:46 PM
  #1  
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why you DONT cut springs

here are a few pics of the said victim
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heres how the car sat with them on
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and now with STOCK suspension
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to put things into perspective, when i pushed down on the shock, there was 0 rebound, and the compression pretty much wasnt there, it took maybe 10 lbs of force to lower it.
see, this is why you dont cut springs. also, im going to have the alignment checked as well, its probably pretty off and looks like the bushings are shot, i know the tie arm bushings are......
DO NOT CUT SPRINGS, ITS NOT COOL, ITS BAD FOR THE SUSPENSION AND CAR!!!
oh, and the ride was SOOOO shitty. and i had my other car lowered correctly, illuminas on their stiffest setting WITH poly-urathane bushings and was a better ride quality then this ****.

idiots

peace
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Old Apr 7, 2008 | 07:01 PM
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how much did you cut? after a half coil spring rate's skyrocket
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Old Apr 7, 2008 | 08:54 PM
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i didnt cut anything. the previous owner did. i just ordered my tokico illumina again so i can replace this suspension with mine.

peace
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Old Apr 7, 2008 | 09:17 PM
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sup lloyd! how soon can you get that running?! we should set up another meet in concord. -JP
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Old Apr 7, 2008 | 09:38 PM
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its running now, and i just got the halfshaft, so i should be able to move it by tomorrow. but running like my old one? idk about that. somethings up with the car.

peace
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Old Apr 7, 2008 | 11:17 PM
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cut springs are bad. but who ever cut them they are all wrong! as far as the struts 0 rebound that means the struts are blown plus there stocks.
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Old Apr 7, 2008 | 11:45 PM
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They cut WAAAAAY too much. A little can be gotten away with, but that much?!

No surprise that the shocks are blown, they're all going to be blown by now anyway due to age.
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Old Apr 8, 2008 | 12:19 AM
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I cut my FB springs back in 1983 but only a little and they worked fine. Many do not realize that if you cut 1", the car will lower more than 1".

Spring style also affects the results. Those springs have a low coil count and varying diameter which makes them a poor canidate for cutting.
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Old Apr 14, 2008 | 08:33 AM
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CORRECTED:
"Most springs can be trimmed a half coil to provide the proper ride height for improved handling. Cutting 1/3 the spring off WILL result in poor ride quality."
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Old Apr 14, 2008 | 11:31 PM
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you had to have known that those were cut when you bought the car the ride would have been horrible.
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Old Apr 15, 2008 | 12:47 AM
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cutting springs is ghetto as hell and the car will ride ghetto as hell, and yes you will definatley need an alignment. i bet your toe angles are off by at least 1 to 1.5 degrees, say bye bye to your tires. if your toe angles dont kill'em, the sharp edge of the spring will when it falls out of place and digs into the sidewall
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Old Apr 15, 2008 | 01:46 AM
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If you cut between 3/4 and 1.5 coils you will not have any problems and the ride will not significantly suffer. This is usually good for about a 1-1.5" drop. I don't go around doing it, but I have cut coils on more than one car in my life.

HEATING a coil is the really ghetto way. Cutting a small amount of coil off is no big deal, especially considering that in FC's the first coil on top is a dead coil just used for mounting. I found that 1.25 up front and 1.75-2 out back was ideal for FC's for a mild drop.

Hell, for that matter, I just put stock coils back on my rx8, and since the front on those cars sits higher than the rear, I cut 3/4 of a coil off the fronts to make it level.

The camber and alignment will not be off any more with cut coils than with lowerinc coils or coilovers dropped the same height.
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Old Apr 15, 2008 | 02:01 AM
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Originally Posted by RotaryResurrection
The camber and alignment will not be off any more with cut coils than with lowerinc coils or coilovers dropped the same height.
true, ive just seen too many people come to my work after they cut the **** out of their springs w/ blown out side walls , tires that have 3000 miles on'em and are down to the chords on the inside edge, or the hideous sound of the spring binding up and clunking when you turn the wheel . cutting springs just instantly reminds me "Mexicans+'90 honda= WTF!?!?"
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Old Apr 15, 2008 | 03:13 AM
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I had some racing springs, not sure which brand exactly, on my '83. It rode a little high for my liking I cut (appx.) 2.5 coils off all of them. The floorboards sat maybe 4" off the ground, and that was one of the best cornering cars Ive been in, even with the stock tires. My shocks were pretty dead, you certainly felt every bump in the road, but even at 130mph it handled like a dream. Im going to put those springs on my new 83, to compare them to my currant Eibach's

I think cutting any more than a few coils would be ridiculous. Your ride sucks because you only have like 3 full coils and its really sprung. Youll love the tokikos
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Old Apr 15, 2008 | 12:14 PM
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my last fc had cut coils in the front, and even with factory shocks it was pretty good.

the rear was another story though, half length mystery springs, way too stiff way too short
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Old Apr 16, 2008 | 12:34 AM
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ya, i had my tokico illumina on tanabe sustec gf210's on my first rx7 that i totalled.
it rode like a dream, but right now im looking at jic coilovers.

and yes, it rode like ****, bump steer was scary (like trying to avoid deers at high speeds) and no, i didnt know cause i actually believed the previous owner (i REALLY shouldent do that)

peace
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Old Apr 16, 2008 | 09:16 AM
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Cutting springs *CAN* be a good way to lower a car or increase the spring rate, if done correctly. With wire diameter and coil diameter held constant, decreasing the number of coils increases the spring rate (rate of change is non linear).

Try this calculator, I know it is correct.
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Old Apr 16, 2008 | 09:46 AM
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Double Post
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Old Apr 16, 2008 | 02:42 PM
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to prove a point
illumina on tanabe provided a good 1.5" drop. looked great. here they are against the cut ones
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peace
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Old Apr 17, 2008 | 03:22 PM
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That picture really illustrates why those springs cut down on wheel and tire space. See how the stock spring is more cone shaped, whereas that's a cylinder with a tapered bottom coil.
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