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susspension problems

Posted: Thu Jun 07, 2012 12:57 pm
by paulfatmess
My e30 has got lowerd susspension obought the car thisway since then i have fitted alpina res as my borbots got niked had it up on the ramp and found adjustable spring front but some numpty has cut rears so they just flop about looking into new rear springs bot dont know what its been droped to can anyone help ???[/quote]

Re: susspension problems

Posted: Thu Jun 07, 2012 12:59 pm
by Speedtouch
Typical drops are M-Tech -15mm (as on Sports and 318is), then -35/40mm, and -60mm.

It's best not to drop more than about 35mm, else you end up with heavy wear on the inside of the rear tyres.

Re: susspension problems

Posted: Thu Jun 07, 2012 1:12 pm
by magpie
Good advise ^ 8)

Re: susspension problems

Posted: Thu Jun 07, 2012 2:02 pm
by mcbonio
drop it more than 30mm and it will only be a matter of time before you crack the sump pan too...

Re: susspension problems

Posted: Thu Jun 07, 2012 9:30 pm
by paulfatmess
thanx for the advice dose anyone know of any 40mm drop springs

Re: susspension problems

Posted: Thu Jun 07, 2012 9:47 pm
by Speedtouch
There are usually many in that size to choose from, ranging from cheap E-bay ones to more expensive, reputable brands such as Spax, Jamex, Pi, H&R, Eibach, etc.

Cheap ones are best avoided; I once owned a 320iSE that had cheap lowering springs fitted by a previous owner, and it failed the MOT because the front ones were loose in the struts and the rears had distorted badly. I refitted some original BMW spares I had from my first 320i (to which I had fitted -40mm springs!)

I would say that the sump clearance is OK with -35/40mm springs, but you wouldn't really want to go any lower.

There may be a set of Eibachs for sale here:
http://www.e30zone.net/modules.php?name ... c&t=219764

Re: susspension problems

Posted: Thu Jun 07, 2012 10:46 pm
by G-Bear
Eibachs and H&R springs seem most popular choice. I think H&R springs are meant to make for a stiffer ride.

This thread gives you a good scope of what people have on their trusty chariots..

http://www.e30zone.net/modules.php?name ... suspension