Suspension refresh

Bonjour à tous, j'étais curieux d'obtenir des commentaires sur ce que tout est nécessaire comme im à 95k sur mon e90 m3. Jusqu'à présent, j'ai remplacé les jambes de force ZCP par des Bilsteins EDC mais je voulais cibler tous les bras de contrôle et le caoutchouc ensuite.

Je pensais faire les deux bras inférieurs avant avec le lien de barre oscillante avec des tirants intérieurs et extérieurs et il apparaît à l'arrière, il y a 3 bras avec des bagues (de chaque côté), mais il semble qu'il y ait peut-être du caoutchouc dans le porte-roues et je ne sais pas quoi remplacer d'autre comme sous-cadre ou douilles.

Merci pour votre suggestion.

Ce thread peut être utile :

https://www.m3post.com/forums/showthread.php?t1781245

Curieux comment était l'amélioration de la vieille zcp aux bilsteins? Vous avez choisi B6 ou 8 ? Merci

osukf09 a écrit

Curieux comment était l'amélioration de la vieille zcp aux bilsteins? Vous avez choisi B6 ou 8 ? Merci

Bonne question. J'ai 71k mi sur mes chocs OE EDC avec des ressorts d'abaissement Swift Sport et je pense les remplacer par des b6 compatibles. J'ai aussi une petite bosse, donc les bras de poussée semblent être dans mon avenir.

À ~ 100k miles, si ce n'est pas avant que j'ai l'intention de faire;

- Bras de commande avant avec bague sphérique
- Bras de contrôle inférieur
- Douilles avant pour balancier (OE)
- Douilles de sous-cadre arrière (solides)
- Douilles différentielles arrière (OEM) + nouveau matériel / boulons
- Bagues de renvoi arrière (OE)

Légère augmentation du NVH avec les bagues de bras avant sphériques. Pas d'augmentation de la NVM avec les bagues des sous-trames solides. Remarque: le remplacement des bagues de swaybar arrière est préférable lorsque le sous-cadre est abandonné – il est donc plus logique de les faire lorsque vous faites les bagues de sous-trame et de diff.

Tout ce que je ferais au cas par cas. Voir s'il y a un mou / fissuration et remplacer si nécessaire.

Voici un grand kit qui couvre à peu près tout sur l'extrémité avant en dehors des bagues swaybar:

https://germanautosolutions.com/store/bmw-e82-e90-monoballs-and-control-arm-set-v2/

My top hats and bump stops were trash by 89k when I refreshed mine.

Upgraded to shaved top hats and E36 bump stops when I put Eibach springs.

I felt the difference in just this.

SilverSlug wrote

My top hats and bump stops were trash by 89k when I refreshed mine.

Upgraded to shaved top hats and E36 bump stops when I put Eibach springs.

I felt the difference in just this.

What were the symptoms of the bad top hats and how can you tell, mine looked fine? Also, how did you shave the top hats? I've got H&R Race springs on my stock EDC so would like to do that as well...although I think my shocks/struts are bad also. My bump stops were gone completely and put the E36 bump stops in thinking that was my problem but still feels like crap.

I got a pair of Dinan shaved top hats (OEM, but already shaved), so they were ready to go, but there is site online somewhere that I saw that also offers a service where they shave the top hats for you.

It will allow for more shock travel, even when you're lowered, so should feel a lot better, especially if you're slammed on H&R springs.

Also, are you sure you installed the bump stops correctly? You have to stuff them through that ring, which holds them in place when you pop them in (sorry I don't know the exact vocabulary for the parts).

sibhusky wrote

Hi all, I was curious to get any input on what all is required as im at 95k on my e90 m3. So far I have replaced the ZCP struts with EDC Bilsteins but I wanted to target all the control arms and rubber next.

I was thinking of doing both front lower arms with the sway bar link with inner and outer tie rods and it appears in the rear, there are 3 arms with bushings in them (each side), however it appears there maybe rubber in the wheel carrier and not sure what else to replace like subframe or diff bushings.

Thanks for any input.

I replaced All my components with FCP control arms on all 4 corners...so that way I have lifetime warranty coverage if needed to replace again down the road...paired with Bilstein "Bilstein gaurantees 1 million miles" lol - EDC compatible shocks and swift springs....also I upgraded to Purple stuff for my subframe and transmission bushing. Highly recommended....removes wheel hops when driving high speed. Lets just say it was a busy year for me when I hit 100k miles on my car. Goodluck

SilverSlug wrote

I got a pair of Dinan shaved top hats (OEM, but already shaved), so they were ready to go, but there is site online somewhere that I saw that also offers a service where they shave the top hats for you.

It will allow for more shock travel, even when you're lowered, so should feel a lot better, especially if you're slammed on H&R springs.

Also, are you sure you installed the bump stops correctly? You have to stuff them through that ring, which holds them in place when you pop them in (sorry I don't know the exact vocabulary for the parts).

Can you buy just the top hats or do you need the whole supplemental ride quality kit from Dinan?

I'm not certain I installed the bump stops correctly...now, depending on what you mean by "ring that holds them in place"

Sorry OP, didn't mean to thread jack. I also just got the GAS arms. I'm waiting for my Ohlins to come in but want to sort as much as I can now even with the stock EDC and springs my car came with.

These are the rings I'm talking about. 2nd photo shows how they pop in and sit in the boot gators. 3rd photo is how the bump stop goes inside the ring… so, when you pop the bump stop into the rubber gator boot, the ring will keep it in place.

And regarding top hats, I was about to have mine shaved down online, but was lucky enough to find a discounted Dinan kit for sale online.

Thanks I just ended up going with the FCP TRW front and rear control arm kits. I dont track my car so dont care too much for poly/monoball stuff and ill leave the subframe and diff alone for now. The lifetime warranty will allow me to just refresh these components after 40-50k if need be.

GotV8? wrote

I replaced All my components with FCP control arms on all 4 corners...so that way I have lifetime warranty coverage if needed to replace again down the road...paired with Bilstein "Bilstein gaurantees 1 million miles" lol - EDC compatible shocks and swift springs....also I upgraded to Purple stuff for my subframe and transmission bushing. Highly recommended....removes wheel hops when driving high speed. Lets just say it was a busy year for me when I hit 100k miles on my car. Goodluck

sibhusky wrote

Thanks I just ended up going with the FCP TRW front and rear control arm kits. I dont track my car so dont care too much for poly/monoball stuff and ill leave the subframe and diff alone for now. The lifetime warranty will allow me to just refresh these components after 40-50k if need be.

Which kits did you go with and how was the install? I’m over 156k miles on all original suspension parts. Looking at doing this in the fall, likely should replace struts too.