I'm running 200lb springs but apear to be too long at 9" i have them as low as possible but the springs keep banging together

I'm going to be changing to 6" springs

but don't know weather 6" springs 200lb and compressed about 1" would feel ok for road use or to go 300lb or is that too harsh?


is there a table to give an indication of
how harsh the ride is dependent on weight of 6 Vs ?lb of spring?

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Proud Member of the ASTOR Owners Club

On a standard 306 GTi front corner weight is about 370kg ~ 800lb.
So 200lb spring will be compressed 4” with the car on the ground. This means that it is impossible to use 6in 200lb spring on the front. For 9” free length spring you have total travel of ~5.9”. This means that the suspension goes coil bound after only 1.9” of travel.

For 250lb springs: compression due to weight of the car 3.2”, 8” spring has total travel of ~5”, so again very little suspension travel.

In both cases the springs are too short for the weight of 306. If you want to keep the spring rate the same it would be necessary to go for longer springs and to make sure that when they are close to going coil bound the bump stops come in to play.

As for increasing spring rates – it depends on the kind of driving that you do and how well the dampers can cope. Standard front springs are only 110lb but have a lot of preload.

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Cherry Red Rallye Project thread
WhiteBMW M140i

I was using 285 on the ASTs for road use although not sure on the length. Perfectly acceptable ride I thought but they were fairly well damped. Didn't bottom out once the rear damping was sorted and was sat at about -45mm

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Nothing to see here

you'll need a lot longer than 6".

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need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Like I say I have 9" ones compressed to Max still sits 1.5" / 2" too high

7" should be ok then?



Cooper Have you taken any pictures profile pix
so I can see the ride height with your new settings

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Proud Member of the ASTOR Owners Club

You let your Girlfriend drive off in your car expect that to come back broken

unfortunately I have a 2.5" ID I'm going for 300lb 7" Springs they should see me right! touch wood!

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Proud Member of the ASTOR Owners Club

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The Leveller
Team China™


Laurent Garnier "The Man With The Red Face"

I run 450lb springs on my Avo coilovers for track use.

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I know this is a few months old but wondering if anyone can help... I have cheap raceland coilies on my HDi (I kno I know, but they wear a gift so can't complain too much, plus IMHO there better than the Gmax Shox and springs I had on before them).

basically I want to change the main coil springs as it's far too compressed and goes coil bound to easily but don't know what spring rate to go for and if I should have longer springs and loose the helper??? here's some pics to help:

these pics are the car as it stands under its own weight:




Jacked up so the wheel no long touches the floor:

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Cherry 306 HDi Stage 1 Remapped
Smooth Bonnet & Grille
Lowered -40mm

Haha, you found me, I have a cable tie in my pocket now and will wrap it round a coil before I leave work, then I have a 50min drive home before I give you an answer.

from reading what Russian Guy wrote (post #3) it seems longer springs is a must. I just want it to hit the bump stops before going coil bound (which I'm sure is what its doing as the coils are marked top and bottom)

As you can see in the first pic of post #17 regardless of the spring there isn't much travel left in the shock itself and my car isn't as low as Mary_Aireys and DarrenjLobb and there on the same kit, I don't know how they manage. the top of the tyre isn't in the arch like some and there 55 profiles:

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Cherry 306 HDi Stage 1 Remapped
Smooth Bonnet & Grille
Lowered -40mm