Hi
So I've got an MR2 roadster and I'm struggling to find good discussion or advise on suspension setup.
My car is 2ZZ converted (engine from a Celica 190), and it had Yellowspeed coilovers fitted when I bought it. The ride was intolerable and horrible harsh banging was way too frequent for my liking. I have since replaced these with BC Racing coilovers with 4kg front, 6kg rear, and I chose them for the 'comfy' spring rates, and because I like that ride height adjustments don't affect pre-load, oh and Meister were out of stock at the time!
I have a few queries:
1. How much pre-load should be set? Based on a random youtube video I backed the adjuster rings off until the spring turned freely, snugged the ring until the spring didn't turn freely by hand, then added 4mm more (the width of a c-spanner). I have no idea if this is in the right ball park or not.
2. How should I be setting my ride height? I have set it to 31cm front, 33cm rear (from centre of the wheel to the wheel arch) as this is what my friends TRD Sportivo springs and dampers are, and I had no better place to start, but any advice is welcome!
3. Is there any guidance on adjusting the damping? Its set to 8 clicks from soft front and rear and it feels quite neutral, but I can't find much guidance on what I'm feeling for when optimising the settings.
4. ARBs - I'm currently running stock ARBs, but have a set of thicker Whiteline items, but I don't want to compromise the set up for fast road use. These also have 3 settings and again I wouldn't know where to start.
Any advice appreciated, thanks.