I've cut my springs.. too much?

[gunning]

I cut my springs today, havent fitted them yet, i will upload some photos once im back from training.

Bassically i cut 2 coils off standard springs, and im running eibach shocks. Will this give me a low ride or just fly past the tyre and wheel and look crap?

I cant tell how much its going to lower it by? Also how hard is it to take the rear spring off a w202?

Im running 255/35/18 on the rear will this rub?

 

[wheels-inmotion]

That's scary.... Removing two helix is going to be around 60mm, you can't do that on OEM coils because the rate on bump could knock out the dampers foot valve. Actual lowering coils have a higher rate albeit progressive or linear to control bump, this calculation works in partnership with the OEM damper rebound values.... You could be in a whole world of hurt on trim coils.

 

[Sonny Burnett]

I cut my springs today, havent fitted them yet, i will upload some photos once im back from training.

Bassically i cut 2 coils off standard springs, and im running eibach shocks. Will this give me a low ride or just fly past the tyre and wheel and look crap?

I cant tell how much its going to lower it by? Also how hard is it to take the rear spring off a w202?

Im running 255/35/18 on the rear will this rub?

dude.. no more than 1 1/2 coils...lol

 

[renault12ts]

I cut my springs today, havent fitted them yet, i will upload some photos once im back from training.

Bassically i cut 2 coils off standard springs, and im running eibach shocks. Will this give me a low ride or just fly past the tyre and wheel and look crap?

I cant tell how much its going to lower it by? Also how hard is it to take the rear spring off a w202?

Im running 255/35/18 on the rear will this rub?

Emm...you couldn't have started with one coil I suppose.

 

[gunning]

Well you will realise I'm abit of a tit at times and I've cut too much off haha I've seen the yanks cut that much off there's but now think about it I might have to get another set of spare springs....also I might trial this cut off, if it's cack, I'll take it off

 

[dannyg2325]

Get coilovers Gunning, dont waste your time with (cutting) springs!

i think that was the advice you give me mate?

 

[grober]

Remember the "lever principle" applies here also. The spring is half way along the suspension arm [lever] so any change in spring length is "magnified" at the hub end. The rear springs are relatively easy to remove. You jack up the back of the car to get the rear suspension high in the air. You then support one of the suspension spring arms [ remove the plastic cover first] with a suitably positioned trolley jack and remove the inner pivot bolt where the arm is attached to the subframe. You then lower the arm slowly on the jack and the spring literally falls out. Put the old rubber pad on to the new spring - and replacement is the opposite of removal.
However this procedure is not without danger and I am not sure if you really know what you are doing? Taking 2 coils of a spring is probably too much and may place certain suspension elements beyond their design travel and precipitate early failure and abnormal tyre wear. I would seek further advice before attempting this for your own safety. sorry

 

[Bellow]

A spring shortened taking the same load is slightly stiffer. Each coil has to deflect more than when all the coils were present.

 

[A210AMG]

My dad always says measure twice cut once...... Hope it works for you when you put it all together

 

[Sonny Burnett]

Well you will realise I'm abit of a tit at times and I've cut too much off haha I've seen the yanks cut that much off there's but now think about it I might have to get another set of spare springs....also I might trial this cut off, if it's cack, I'll take it off

americans????
most would say 1 1/2.. why on earth have you cut off 2 coils.. dude you sound like your moding a crappy jetta... lmao

 

[Haris]

shouldn't really cut half a coil should you? as the spring wouldn't seat properly then, only do either one or two.

 

[nigel cross]

If your going to buy some new springs, why not get shorter ones from the start, sure someone here can point you in the right direction

 

[Howard]

If you have a big accident and the insurance company decide to examine the car , how do you imagine they will react when they see that someone has angle grindered the springs ?

Favourably ?

Remember land rover man who 'modded' his car , and then killed off half his family ? If you have a fatal accident and they find that you've done something to compromise the handling , they'll hang you out to dry.

 

[d w124]

Why would you cut springs when youcan have Brabus ones for less than 100 pounds
BRABUS Sportfedern Mercedes C-Klasse W202 mit Niveau bei eBay.de: Fahrwerke (endet 24.01.11 19:37:08 MEZ)

 

[mazza]

"

Well you will realise I'm abit of a tit at times and I've cut too much off haha I've seen the yanks cut that much off there's but now think about it I might have to get another set of spare springs....also I might trial this cut off, if it's cack, I'll take it off

"


Hi

**** happens!!

your shocks shoud be able to cope with a 40mm drop maybe even 45mm

Each coil removed will add between 8-10% to the spring rate.

you might find that your springs will now have a slightly more bouncey action. are the Eibach shocks uprated?

good luck man!!


mazza

 

[gunning]

Thanks for all your advise, and Grober, im new to modifying Mercedes but have been around cars most of my life, so i understand how it all works, iv also got my dad who has been an engineer for 40 years. This isnt the ideal suspension set up for me, i will be removing any pads to start off with, however ideally i would use my own advice on buying coilovers but sadly due to certain comitments i cant for a good while yet, i think its purely a case of trial and error. The car wont be going out on the road until its fully tested anyway (I always trailor my cars to an airfeild near me) and test things such as brakes, new engine, suspension set up etc etc.

So this is Landrover man scenario as my car wil be tested to harsh demands...

 

[grober]

Thanks for all your advise, and Grober, im new to modifying Mercedes but have been around cars most of my life, so i understand how it all works, iv also got my dad who has been an engineer for 40 years. This isnt the ideal suspension set up for me, i will be removing any pads to start off with, however ideally i would use my own advice on buying coilovers but sadly due to certain comitments i cant for a good while yet, i think its purely a case of trial and error. The car wont be going out on the road until its fully tested anyway (I always trailor my cars to an airfeild near me) and test things such as brakes, new engine, suspension set up etc etc.

So this is Landrover man scenario as my car wil be tested to harsh demands...

Fair enough. Its sometimes not possible to gauge a new posters experience right away so I erred on the safe side. My tip on how to remove the rear springs still holds then . The fronts are done in a different way and are best tacked with the proper [ klann type] spring compressor which makes the job relatively simple--lots of posts on this.

 

[bolide]

Allegedly there was a chap in Brighton who specialised in this. Four hacksaw blades per car - he used to slide underneath and chop them while they were still on the car...

While we're on the topic, how does the spring rate go up as you cut it down? I've heard this before but can't work out the physics involved

If it's a constant-rate front spring how does shortening it increase the spring rate?

Nick Froome

 

[chris846]

each coil of the spring carries the car's load. For that given load, each coil deflects by the same amount: d. So with ten coils the deflection is 10d. Cut a coil off and the deflection is 9d
So the 'spring rate' - i.e. the amount the complete spring deflects for a given load, is reduced.
...It's just a shorter version of the same spring - so it compresses a proportionately smaller amount, for the same load.

If you can't get your head round each coil carrying the full weight of that corner of the car, try imagining a stack of bathroom scales - stand on the top and each set of scales will show your full weight. Worked for me!

 

[Sonny Burnett]

Why would you cut springs when youcan have Brabus ones for less than 100 pounds
BRABUS Sportfedern Mercedes C-Klasse W202 mit Niveau bei eBay.de: Fahrwerke (endet 24.01.11 19:37:08 MEZ)

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