Anyone ever cut 1 coil off of F sport springs?
09-23-10, 10:31 PM
#17
Cutting springs get a bad reputation because most people can't do it right. There is nothing wrong with cutting springs if you've done your homework. You cannot just mark and spot, cut it, and expect great results.
If I had to cut springs, I would not go more than 5% of the total length on a linear spring. More than that, I might as well get new springs. Progressive springs will be a trickier, but doable.
Heating springs is the worst thing you can do so NEVER do that.
If I had to cut springs, I would not go more than 5% of the total length on a linear spring. More than that, I might as well get new springs. Progressive springs will be a trickier, but doable.
Heating springs is the worst thing you can do so NEVER do that.
09-23-10, 10:41 PM
#18
Thanks you some body that dont hate 
Cutting springs get a bad reputation because most people can't do it right. There is nothing wrong with cutting springs if you've done your homework. You cannot just mark and spot, cut it, and expect great results.
If I had to cut springs, I would not go more than 5% of the total length on a linear spring. More than that, I might as well get new springs. Progressive springs will be a trickier, but doable.
Heating springs is the worst thing you can do so NEVER do that.
If I had to cut springs, I would not go more than 5% of the total length on a linear spring. More than that, I might as well get new springs. Progressive springs will be a trickier, but doable.
Heating springs is the worst thing you can do so NEVER do that.
09-23-10, 11:25 PM
#19
Thanks Kurtz. I always learn from you. Thanks for posting that.
09-24-10, 04:19 AM
#20
Cutting springs get a bad reputation because most people can't do it right. There is nothing wrong with cutting springs if you've done your homework. You cannot just mark and spot, cut it, and expect great results.
If I had to cut springs, I would not go more than 5% of the total length on a linear spring. More than that, I might as well get new springs. Progressive springs will be a trickier, but doable.
Heating springs is the worst thing you can do so NEVER do that.
If I had to cut springs, I would not go more than 5% of the total length on a linear spring. More than that, I might as well get new springs. Progressive springs will be a trickier, but doable.
Heating springs is the worst thing you can do so NEVER do that.
Thing is, even if you do "do it right" it's still not as good as buying a spring actually designed for that height.
The link I posted gives a decent overview of why that's the case.
Will it be "good enough" if done right? If you're not real picky, probably yeah. Will it be as good as if you had just ponied up a few bucks for a properly engineered part? Nope.
The link even explains why it's worse with a progressive spring-
The primary problem with cutting the coil on progressive springs is that in most cases you'll be forced to cut coils from the "hard" end of the spring. This will make the spring as a whole effectively soft, resulting in a jouncy ride, bad handling, a boat-like roll while cornering and bottoming out over imperfections in the road
Now... the "don't be a hater!" guy is rolling on some goofy big rims (20s or 22s depending on which post of his was a typo in another thread) so he's already on uncomfortable really low-profile tires... and probably not taking corners at much speed either... and likely going really slowly over or avoiding any defects in the road since those rubber-bands of tires won't offer much rim protection... so he might well never notice these problems his hack-job introduced... someone on more reasonable sized tires actually putting the car through some paces would be more likely to.
Naah... as your own sig says, buy quality once, or use crap forever. Cut springs are crap compared to buying one actually meant for your application.
Last edited by Kurtz; 09-24-10 at 04:22 AM.
09-24-10, 05:45 AM
#22
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yea, I'm just going to leave them. I'm going to get a set of KW V3's in the spring anyway so for the winter, I'll just leave the car at regular F-sport height. It's probably better for rubbing and ground clearance issues anyway. I'm already going to be the only idiot driving around on 20" vossens for the winter. I hope we dont get too much snow!!
09-24-10, 07:48 AM
#23
Thing is, even if you do "do it right" it's still not as good as buying a spring actually designed for that height.
The link I posted gives a decent overview of why that's the case.
Will it be "good enough" if done right? If you're not real picky, probably yeah. Will it be as good as if you had just ponied up a few bucks for a properly engineered part? Nope.
The link even explains why it's worse with a progressive spring-
The link I posted gives a decent overview of why that's the case.
Will it be "good enough" if done right? If you're not real picky, probably yeah. Will it be as good as if you had just ponied up a few bucks for a properly engineered part? Nope.
The link even explains why it's worse with a progressive spring-
Of course it's never as good as buying a spring that's already designed for the height, but sometimes you cannot get the ride you're looking for, and a set of [high] quality coilover is out of reach. It's a compromise you make, but it's doable job. If you're tracking, by all means get a new set of springs but if you're just driving around the city, most likely you're not going to be too nit picky about performance. The amount of people on stiff 14k/10k springs claiming their ride is 'smooth' is enough for me to confirm that
The primary problem with cutting the coil on progressive springs is that in most cases you'll be forced to cut coils from the "hard" end of the spring. This will make the spring as a whole effectively soft, resulting in a jouncy ride, bad handling, a boat-like roll while cornering and bottoming out over imperfections in the road
If you do want to take on the risk with a progressive spring, you HAVE to find your way to a spring dyno. This is why many fail at cutting progressive springs...because they lack proper tooling. You can do without the dyno with linear springs and get close enough results.
I don't advocate cutting springs in general because most people seems to cut well beyond the limit, but those who do it safely can get pretty good results
09-24-10, 07:53 AM
#25
yea, I'm just going to leave them. I'm going to get a set of KW V3's in the spring anyway so for the winter, I'll just leave the car at regular F-sport height. It's probably better for rubbing and ground clearance issues anyway. I'm already going to be the only idiot driving around on 20" vossens for the winter. I hope we dont get too much snow!!
Good idea. It's probably the best thing to do, especially for resale value. The price drops like a rock with cut springs, even if you have F-Sports.
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