>>359588738
Hover over some of the options - if you're a newbie, you can ignore the damper/bumper/etc stuff for now, the hover description tells you what happens when you raise/lower the values, and also check out http://www.oocities.org/cbarnett/SetupMatrix.pdf .
For 787B on Suzuka, the trick is really lowering tyre pressures, the car is crazy under and oversteery on all corners, but especially the medium speed ones, as well as some more ticks on the aero. Nothing crazy, but enough to really make it usable, and make sure to really be light on the throttle out of corners in 1st because the 787B's 1st gear is a bat out of hell.