Bilstein extended rear shocks

Quote:

---

Originally Posted by Bytemrk

My understanding was that the standard length Bilsteins I previously had (F4- BE5-B995-M0) where 255/103, thats why I thought 255/70 would be ok...

---

Just check those rates. The 255/103 rates will produce a fairly harsh ride and still not deliver a lot of control - its more the 103 aspect that would surprise me for a standard shock setting unless it is built for billyard table smooth roads. The 255/70 will be ride a lot better over rough roads etc. If you maintain the 70 bump valving and increase the rebound rate you will get a lot more control without an increase in harshness. You'll always feel changes in the bump valving, but not necessarily the rebound.

Pardon my ignorance Slunnie , which number refers to Bump and which to rebound when one is talking about 255/70 valve Bilstein..:unsure:

Edit: you've already answered that 70 is the Bump valving.

Quote:

---

Originally Posted by Disco_owner

Pardon my ignorance Slunnie , which number refers to Bump and which to rebound when one is talking about 255/70 valve Bilstein..:unsure:

Edit: you've already answered that 70 is the Bump valving.

---

Thats the one, 70 is bump and 255 is rebound. The number relates to the force required (approx x10 for N) to move the shock at about 550mm/s

These rates are specific to the D2 though and I dont think they will be suitable for D1's, RRC etc which have a different body.

Quote:

---

Originally Posted by Slunnie

Thats the one, 70 is bump and 255 is rebound. The number relates to the force required (approx x10 for N) to move the shock at about 550mm/s

These rates are specific to the D2 though and I dont think they will be suitable for D1's, RRC etc which have a different body.

---

:D

Thanks Simon , I was merely trying to discover more about what the numbers meant , I sort of realise that those rates would be specific to D2's.:angel:

Quote:

---

Originally Posted by Disco_owner

:D

Thanks Simon , I was merely trying to discover more about what the numbers meant , I sort of realise that those rates would be specific to D2's.:angel:

---

Cool, I'll see if I can find an old Dyno sheet from somewhere and post it up.

Here we go. The pic has been tweaked a touch to make it more readable.

https://www.aulro.com/afvb/images/im...015/11/822.jpg

Up !