S13 Coilovers into Z31

[DeleriousZ]

I'm currently in the process of converting my z31 over to make use of coilovers for the s13 chassis. Seeing as the z31 strut tube/knuckle setup is completely different from the s13 setup, something had to be done!

 

This is what it looked like when I started out on it..

 

 

Those are z32 4pot calipers on there, stock z32 rotors. Stock suspension otherwise.

 

Thanks to a bunch of legwork from the one like "Butter" it was discovered that coilover adapter tubes made specifically for "Stance" coilovers to adapt to the Cressidia (not sure of the generation, probably similar to the z31.) The serialnine adapters were exactly what 'we' needed to install coilovers into the z31.

 

"Racinjitter" got the ball rolling with his setup on stance gr+ 3 ways doing the required testing to ensure the setup would be structurally sound. I decided to go ahead and try it out, along with "1SickZ" (of central florida turbo, fastest street legal z31 in north america without spray.) He did the required cutting and machining of the strut tubes, and got them welded and powder coated. They came out beautifully, look damn near OEM.

 

 

These replace the bottom units of the Stance coilovers, which have fully threaded bodies, and allow for maximum height adjustability. The result of this is as follows:

 

 

 

 

 

And the finished result:

 

 

As for the rears, I'm still waiting on parts from the machine shop to install the rear subframe. The coilovers will bolt into the stock strut mounts, as seen in the images below. Some may argue that this position is not strong enough to support the forces generated, but it has been tested previously, and has very similar designs to the m30 rear suspension setup, which uses a coil-on-shock setup in a very similar fashion.

 

 

More pics to follow when said is accomplished, please include comments and criticisms below!

[hoov100]

if you have the bolt on lower shock mounts i would consider welding them to the arm.