I think the steering lock is the issue. I just cannot go around tight hairpins. So do I need to increase or decreas the lock to adjust it?
For Ebisu I think the Caterham, tuned according to the Renown Tuning thread on the board, works pretty well. It has a good sharp turning radius. I just drove around that track about 25 times, trying to take the corners fast and have fun. I mastered all but a couple that way, and for the tricky ones I just tried a slightly different line and different speeds each time until I eventually got them all.
Try 22 and go up 1 by one until you feel comfortable with the radius. But try to not over do it or the car might start to be unstable. You'll know what I mean when driving