What suspension for evryday car ?

Need technical Q/A then you're in the right place

Moderator: martauto

User avatar
tinkata
E30 Zone Newbie
E30 Zone Newbie
Posts: 1
Joined: Fri Apr 01, 2011 11:00 pm

Post Thu Feb 16, 2012 5:13 pm

Hi there. I need some advice on what kind of suspension to get for my car. The car is an e30 325 coupe. The car is used as an everyday car. Im looking for a tight ride but not as tight as having my teeth fillings fall out.
User avatar
pnd
E30 Zone Squatter
E30 Zone Squatter
Posts: 1801
Joined: Sat Nov 12, 2005 11:00 pm

Post Thu Feb 16, 2012 5:19 pm

h+R cup kit (-35mm) with the matching anti roll bars still takes some beating for ride and handling and isn't silly money.
Grrrmachine
E30 Zone Wiki / Team Member
E30 Zone Wiki / Team Member
Posts: 8043
Joined: Sat Feb 09, 2008 11:00 pm
Location: Warsaw, Poland

Post Thu Feb 16, 2012 5:28 pm

e301988325i
E30 Zone Addict
E30 Zone Addict
Posts: 3701
Joined: Fri Feb 01, 2008 11:00 pm
Location: Taunton, Somerset

Post Thu Feb 16, 2012 5:40 pm

I'd reccomend the bilstein B8 with eibach springs, known as the B12 kit, it's generally accepted that this setup gives a better ride qulaity than the H&R's. upgraded ARB's are really the second stage and will make the ride significantly worse.

I give up, I thought B4's were stock, B6's were shortened 325i tech 1 sport equivalents and B8's were an alpina / hartge equivalent and upgrade for the M3.

But the bilstein website states the B8 is the shortened.

http://www.bilstein.de/en/products/high ... in-b8.html
I said:

Can anyone suggest how to test if the boot lights are staying on with the boot shut?

e30topless said:

lock the wife in there
User avatar
pnd
E30 Zone Squatter
E30 Zone Squatter
Posts: 1801
Joined: Sat Nov 12, 2005 11:00 pm

Post Thu Feb 16, 2012 9:39 pm

uprated arb's didn't worsen the ride on my car and i can't see how they would.
e301988325i
E30 Zone Addict
E30 Zone Addict
Posts: 3701
Joined: Fri Feb 01, 2008 11:00 pm
Location: Taunton, Somerset

Post Fri Feb 17, 2012 6:55 am

it's very simple, arb's of any size restrict the movement of each individual wheel, linking wheels together effectively increases the spring rate at each wheel.
I said:

Can anyone suggest how to test if the boot lights are staying on with the boot shut?

e30topless said:

lock the wife in there
Jhonno
Homo Hair
Posts: 20362
Joined: Mon Jan 10, 2005 11:00 pm
Location: FLAT, FLAT, FLAT!!

Post Fri Feb 17, 2012 11:15 am

The whole point of ARB's is to reduce roll without killing ride quality..
Got cable ties? Get diffin..

Arch roller for hire.

www.zeroexhausts.co.uk

Image
User avatar
Gavla
E30 Zone Squatter
E30 Zone Squatter
Posts: 1586
Joined: Tue Dec 06, 2011 11:00 pm

Post Fri Feb 17, 2012 5:36 pm

I have just put Sachs / Boge (4's I think) on my cab that I use daily, smooth as you like and did not cost an arm and a leg.
e301988325i
E30 Zone Addict
E30 Zone Addict
Posts: 3701
Joined: Fri Feb 01, 2008 11:00 pm
Location: Taunton, Somerset

Post Fri Feb 17, 2012 6:06 pm

Jhonno wrote:The whole point of ARB's is to reduce roll without killing ride quality..
Yes that is true, for a given corner sprin weight a stiffer roll bar adds additional spring rate to one side worsening independant wheel movement and thus ride quality.

copied from elsewhere.

Antiroll bars have no effect in a two-wheel-bump situation and allow compliance based on the (softer) spring rate alone. In a one-wheel bump, since only one end of the ARB is moving, it still acts less stiff than a spring of a rate that you would have to use to achieve the roll stiffness using springs alone.

http://www.eng-tips.com/viewthread.cfm?qid=233728
I said:

Can anyone suggest how to test if the boot lights are staying on with the boot shut?

e30topless said:

lock the wife in there
Morat
E30 Zone Team Member
E30 Zone Team Member
Posts: 8943
Joined: Thu Feb 09, 2006 11:00 pm
Location: The Peoples Republic of Yorkshire

Post Fri Feb 17, 2012 10:39 pm

B12 kit and Eibach ARBS, much reduced body roll and a taut but not crashy ride - on 205/55/15.
E30 Touring 0.35 cD - more slippery than prison soap :)

Image
Praise the Lard... and pass the dripping!
leeparkes
Married to the E30 Zone
Married to the E30 Zone
Posts: 9535
Joined: Thu Jan 03, 2008 11:00 pm
Location: Black country

Post Fri Feb 17, 2012 11:39 pm

pnd wrote:h+R cup kit (-35mm) with the matching anti roll bars still takes some beating for ride and handling and isn't silly money.
I sure ive read on here recently the H&R cup kit uses B4 dampers?
Cypriotgeeza wrote:I done both my mates in my old 318is
felt so proud,even tried it with a E30 325i and got put in my place.. :o:
Jhonno
Homo Hair
Posts: 20362
Joined: Mon Jan 10, 2005 11:00 pm
Location: FLAT, FLAT, FLAT!!

Post Sat Feb 18, 2012 1:37 am

It doesn't! B4 is for standard springs..
Got cable ties? Get diffin..

Arch roller for hire.

www.zeroexhausts.co.uk

Image
Dave_M3
E30 Zone Addict
E30 Zone Addict
Posts: 3428
Joined: Sat Jun 24, 2006 11:00 pm
Location: Cork

Post Sat Feb 18, 2012 4:27 am

B8s and Eibachs or just the B12 kit with Eibach arbs gets my vote!

Loved the setup on my iS and used that every day. I'll probably go more hardcore when its finished the rebuild though.
M42 rightness above 6500rpm, nobody can hear you scream