rear coil-overs

[petevw]

Thanks for the info. Please let me know what GWD says.

I'll retap the sleeves, and hopefully it turns out well.

Alex, i can't see the picture either. Can you repost?

[wrenchnride247]

Pete, If you can't get a good thread in the there, you can use a helicoil, or a E-Z LOC insert. They have them for all different sizes.

[Simon]

Pete, I haven't been able to reach him yet, but I will try again on monday.
Btw. Are you using an IRS pan? Or were the mounts for the trailing arms welded on?
Could you measure the extended length of the shocks (middle eye to eye)? I am looking for some double adjustable dampers that might fit.


I have been looking around for 944 coil-over options though, and most of them seem to use 2,25" = 57,15mm ID springs.
They are a little smaller than the 60mm Eibach ERS springs, it might be that those 1,5mm make (part of) the difference we need.

Attached is a picture from the Bilstein Cup coilover on a 944, using 2,25" ID springs. It doesn't interfere with the trailing arms and it's mounting eye is right against the trailing arm (ie not using something like the racers edge bolts to space the away from the trailing arms).
What is visible though, is that the bottom mounting eye is offset from the center of the shock.
What can be seen as well is that it's actually quiet a tight fit, with little clearance between the bottom spring perch and the trailing arm.
I would guess a 60mm ID spring might not fit in this case.

The 2nd attachment is a picture from a Koni 3012 damper + 2,25" ID springs.
It's mounting eye is in line with the centerline of the damper and it uses a spacer (racers edge one) to keep it from interfering with the trailing arms (+it acts as an adapter for 14mm->1/2")
It seems there is more space available with this setup, so a 60mm ID spring might work with this.

All in all it seems a small spacer might fix the problem.

[Simon]

Result from the conversation with GWD:
They have no experience with 944 trailing arms, so he doesn't know if it should fit or not.

He did offer me te send me a pair so I can test it myself.
That's customer-service!


Anyway:
I did some more digging and there is a rss club suspension from KW for the 944 (front and rear) which uses 60mm springs on both the front and the rear.
As far as I have been able to track it down it doesn't use any kind of spacer and the mounting eyes are in line with the centerline for the damper.

Like I said above: Try the Racers edge bolts (if the mounting eye fits) and don't forget to space the uppermount a little inwards too.