I used to have a Mk2 Golf when I was younger, from a time when hot hatches cornered on 3 wheels as a design feature
Like you say the R can still lift it's back inside to help get around corners. Traits like that are what makes the car fun.
I looked into the roll centre/camber correction but found the caster improvement solved my camber problem. It has remained on my list of interesting tweaks but my engine failed and life overtook me.
As already discussed, I decided against lowering the car to keep the geometry and changed the springs to slightly longer versions to give better suspension travel.
Interesting thread, always good to hear how other people approach their setups.
yah it is the pretty standard setup on fwd/awd platforms in north america for SCCA solo racing.
max front grip at the expense of rear stability
super fast rear weight transfer for transitions, mainly slaloms as u don't really see it in other forms of racing
the rear can be settled with throttle
the more time you are on throttle the faster you are, waiting for the rear to come around and/or waiting for understeer to go away is the difference between a win or loss.
i came 2nd at a large american national championship in a near stock miata (E stock class) due to a slipping clutch, and understeering setup. had no setup time in the car as it had its motor out before the event. on my datalogger, i got understeer in one section and had to get off the throttle kuz i just came in a little too quick, and lost 1.1 second. i lost by 7 tenths of a second over 2 days, (they take your best lap out of three from each day)
ill be headed back there next year, the koni 2812's on the car are getting revalved (which cost 1200$ a corner just for the shock alone, they're cartridge style valves very trick, 8 settings for compression, 8 settings for compression each with their own valving curve for a possible 64 different shock settings you can actually feel, through low speed, high speed bumps. one click too much changes the car from perfect to nearly undrivable) and some new bumpstops installed to simulate spring rate. the stock class miata is only allowed a catback exhaust, shocks and tires.
Anyways, if you decide to go on the bc racing coilovers, buy some koni progressive bumpstops upgrade to swift springs ( they have a smidge more travel, are actually accurate for their rate over their entire range of travel, and are lighter. the bc springs have been tested to be progressively stiffer as it travels and don't have much spring travel before binding, and r heavy)
but you're going to have to run a fair amount of rate to stay off the bumpstops with only 1 inch of travel.
with about 900lbs over each corner in front, say 3 inches of travel before the suspension is loaded with the cars resting weight, a 400lb spring will compress 2 inches leaving you with 1 inch of travel.. you get the idea.. its a lose lose situation, heavy rates, not enough travel, and poor valving..