Why? I'm no tuning genius, I just follow flowcharts until I get something halfway near driveable, which never translates to fast!
If I'm recalling off the top of my head for the 935, believe I messed with tire pressures but ended up back at the start. Ran a bit of toe-out in the front and a little in on the rear, took quite a bit more camber out than you'd think, left the caster high because I always run the caster high. I'd run it higher if I could. Front ARB was softened all the way, rear was a bit more than halfway I think. I want to say I increased the spring rates a hair but would have to check. Ride height was two clicks from bottom on both ends. Think I lowered all the geometry but not by much. Brakes were around 46 or 47% or something, experimented with lower aero on the rear but ended up maxing it all, and although the car probably really did have a spool differential in real life I did not leave it at 100/100, this is Forza, after all. Although I run higher settings than most if I'm not mistaken. And there you go, my rubbish tuning skills, right there. Sincerely doubt this would get anyone anywhere near the top of the leaderboards, but I made it around with little calamity, which is all that mattered to me.
Plus, having wasted far too much of my life reading books and articles about this sort of thing, old rear-engined cars are basically a giant overbalanced pendulum. There is no getting around that. Bad habits other cars let you get away with like chopping the throttle and upsetting the car mid-corner is just never going to work. I spend a lot of time running a little maintenance throttle and modulating the brake slightly to adjust speed. Not sure if that's what I should be doing, but it seems to work for me. Also, the wider rear track bites me when I overguesstimate the entry or exit and run just a hair too wide and snag the grass a bit with the outside rear.
