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Cutting springs 

 

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Posted: Wed Jan 03, 2007 4:48 pm 
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i've heard that you can use a oxy welder to heat them, then SLOWLY lower your car down to the height u want (evenly each side/axle) BUT u should never do dodgy stuff to your suspension - unless u feel invinsable

i found this out from a mate who tried it, but dropped his car straight down - thus putting it on bump stops and the car never rose back up - so he went and got new springs anyway (hahaha)

 

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Posted: Wed Jan 03, 2007 5:20 pm 
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FairmontXR6 wrote:
i've heard that you can use a oxy welder to heat them, then SLOWLY lower your car down to the height u want (evenly each side/axle) BUT u should never do dodgy stuff to your suspension - unless u feel invinsable

i found this out from a mate who tried it, but dropped his car straight down - thus putting it on bump stops and the car never rose back up - so he went and got new springs anyway (hahaha)


Did he heat the springs up while still on the car?
I'm suprized he is still walking as doing the rear near the petrol tank :idea:

 

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Posted: Thu Jan 04, 2007 12:45 pm 
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Ben_Daui wrote:
FairmontXR6 wrote:
i've heard that you can use a oxy welder to heat them, then SLOWLY lower your car down to the height u want (evenly each side/axle) BUT u should never do dodgy stuff to your suspension - unless u feel invinsable

i found this out from a mate who tried it, but dropped his car straight down - thus putting it on bump stops and the car never rose back up - so he went and got new springs anyway (hahaha)


Did he heat the springs up while still on the car?
I'm suprized he is still walking as doing the rear near the petrol tank :idea:


Same i would be scared to touch a welder to any part of a car due to the petrol tank etc
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Posted: Thu Jan 04, 2007 1:53 pm 
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yes!!!!, by the way, he's a holden driver, he did it to a VL
maybe that explains it abit

and no - i WASN'T there at the time

 

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Posted: Thu Jan 04, 2007 7:57 pm 
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dont foget to get shocks to suit if u are going really low
so many people always overlook this
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 Post subject: ok here u go mate
Posted: Sat Feb 03, 2007 4:09 am 
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if u drive around with cut springs, u run the risk of getting pulled over in a unroadworthy car which will cost u money and fines...good luck

 

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Posted: Sat Feb 03, 2007 2:38 pm 
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haggis wrote:
xf_xr6 wrote:

haggis wrote:
As far as i know, it'd be fine to cut the springs are they are single rate springs, and not progressive... ie the spring compresses at an even rate, instead of becoming firmer when having more of a load on it?


The rate will change, because spring rate is determined by thickness and length. And obviously when you cut a spring you make it smaller, which changes its length, thus making it firmer.


I could understand if it was number of coils & the thickness, but i can't see how the length of the spring changes the rate at which it compresses... I know you shouldn't cut them as they are too soft to be shorter, but i don't think it changes the rate at which it compresses? I'll go for a search on google but it doesn't quite make sense in my head :P


easiest way to look at it, is get a 2m piece of steel and bend it. Now get a 10cm and try to bend it the same way - which would be easier?

so thats why sometimes when you go to lower a car, a replacement spring will have more coils than standard height.
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Posted: Sat Feb 03, 2007 2:51 pm 
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You can also get spring clamps which just compress one or two coils, but that would make for a crap ride and I'd be surprised if they were legal in Oz.
The first post on this site seems to speak quite positively of this method.
http://www.allpar.com/eek/coils.html

 

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Posted: Sat Feb 03, 2007 4:54 pm 
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cilkorules, why did you mine this

 

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