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[BruceT]

Springs alone are around 30-40mm, Do Vectra suspensions bits fit?

Is this enough to make the 'mig look low? (euro style low)

Ive done a photoshop, but I think realistically the drop pictured is probably 60 ish mm

Does anyone have some second hand/spare lowering springs and can fit them in the Bristol Area?

[vrba]

just to inform you i did shocks change, all new Kayaba Exel G Gas, put on  225/45 on '17 and the car is pretty stiff now with stock springs. i was thinking of lowering but now i'm not sure about that cause that will ruin all the confort in driving.  

[BruceT]

Yeh im running the standard 15" 205/60 profile tyres so its bit wobbly

[serek]

mine car is lowering by 40mm and now on 19" wheels is different comfort  
then 15" or 16" but not everyone like to lowering and if you put new shocks and 17" rims you will fell defferent on corners but dont lose all comfort

[vrba]

i agree serek not all the comfort, hendling is better now

[sev]

The only issue that I ever had with lowering is that where most people change the springs, they forget that the shock rod length remains the same.

The damper rod length is optimised for the spring, so if you lower the car you should in theory find a shock with the equivalently altered rod length, otherwise when the load is off the suspension the spring will roll about on it's cradle.

Also if you look at coilover shocks don't be fooled into thinking that the spring set the 'ride height' like the max power boys convince themselves.

Spring preload is very different to ride height adjustment.

Also the lower profile the tyre is, the more harsh the ride will feel as you don't have the air cushion or the slip angle on the rubber to cushion the bump characteristics.

I did have spreadheet which calculated the true speedo readings after altering wheel geometry in respect to rolling radius changes.

if you want to keep the same ride comfort it's probably worth finding out what the weight of the spring is to start with and what the static sag on the car is.  From this, find a shorter spring with the same weight characteristics, as the preload will be the same, so you'll lower but not change the shock absorber's damping dynamics.

[ngrainqey]

does anybody know what its like difficulty-wise swapping standard shocks+springs to irmscher ones like on the mv6...much messing about?
thanks