Arnoud

Dave:

Although I do not have the springs that you have (I still have the factory standard springs on my car), IIRC the three tighter coils are indeed oriented toward the top of the assembly.

I posted several pictures a few weeks ago, including original spring measurements when in place of 31 cm, when we exchanged my standard rear shocks for Bilsteins, see: https://rennlist.com/forums/10459143-post30.html

FLYVMO

Those springs look like the Eibach progressive springs, and they are shorter than the stock Porsche linear springs. Hopefully you have a set of 4 as otherwise your car will have a mix of progressive spring rates in the rear with linear in the front. Those springs also have a higher spring rate (stiffer) than stock.

Cheers!
Carl

ammonman

IIRC the orientation of the springs w/regard to the tighter coils doesn't matter. The "softer" section of the coils will compress before the "stiffer" section.

Mike

Hilton

Looks like you've got the Eibach progressive ones.. they are indeed much shorter than stock.

Here's the eibachs next to stock S4 fronts and rears:

Landseer

Am using Eibach on front, stock rear, handled great in autocross last weekend.

aaddpp

That orientation seems to make sense as it matches the orientation of the lettering printed on them. Thanks for the link, I'm surprised I missed it since gathering info on the spring installation has been on mind for a few weeks now as I contemplate how to approach this...I've replaced shock / spring assemblies before, but never rebuilt one myself.

Yup, they are the Eibachs. The two fronts went in a while back so they'll be similar all around.


I'll have a look at them in the AM to see if they work either way, seems odd though that you could opt for either direction. If that's the case though, my OCD would require the letters face right side up



Yup, similar comparison. Funny I just found the thread from 928 intl selling these, and it says the larger diameter tubing use to make these allows for a shorter spring.



I'll have a go at them in the AM, but I was wondering if I need to pre-set the stop on the threaded collar higher up on the threading to "take up some slack" created by the shorter spring, or will the stiffer spring do part of that? I'm guessing it'll probably be more obvious once I start assembling it - just curious what other have done.

Thanks,
Dave

aaddpp

One done, one to go. Pretty straight forward...though, as you tighten the top nut down, the dust shield begins to **** sideways. Seems to straighten itself though as you get closer to the torque value. Last job is to finish torquing...cant get enough leverage with a 7mm wrench and a crows foot on a torque wrench. any thoughts? Also, do the spring ends (or the spring caps) need to face in any particular direction, or can they sit anywhere in the 360 degrees