Well, happy new year to all you Z'ers.
Enjoyed the break from doing anything at all over the holidays, but yesterday I started on the Z, getting busy with all my new bits..
At this stage, I just want to get the suspension swapped over so I can decided whether or not to return the old Apex stuff.
Anyway, simple job, just to swap the Powerflex top mounts...
Sorry, didn't take many photos of the removal, but it only takes a few mins.
Jack, the rear (both sides), remove the lower shock bolts and support the swing arms, undo the top and drop the shocks out.
Then lean on the brake disk/hub and the spring should slide out.
Pop in the new KW/ST springs...
Swap the top mounts...
Shove them back in the car...
Bolt up the lower (hand tight), then torque them once the cars on the ground....
Same on the other side...
Stick some wheels on (oops wrong wheels... nevermind)
Take it for a spin....
Pleased to say, the 'knock' has gone. As suspected, it was just an internal valve noise, that after fitting the polybushed top mounts, was transferring to the cabin. Didn't bother me at all, but my dad moaned a bit and hey, we bought the Apex stuff before we knew just how special this car would be, and since ST was my go-to kit for the M3, I couldn't think of anything better to treat the Z with...
I did intentionally put the 386's on as they have a really high 52mm offset and are only 8" wide (still on 245 tyres mind) and I wanted to see how it sits. The previous style 18's were 8.5" and 41mm offset. Both are using an additional 15mm spacer (26mm / 37mm respective effective offsets)
It's not bad, but as you can see, the style 18 fronts (7.5" wide/ 41mm - 3mm spacer offset) is much more flush.
I'll wait till I get the rear camber sorted before deciding if we'll go with the 261's I got recently (currently away for refurb and some new rubber) or look for some more 386's, or even just stick with the originals (which is my own long term preference anyway).
Reason for waiting is that after the camber reduction, I'm not sure if it will pull the bottom of the wheel in, or push the top out, so can't be sure at this stage what size of spacer would be required.
Anyways, that's all for now. Hope to get the front coilovers swapped over in the new few days, then can start with the rest of santa's treats.