yeah i've been in some cars with 9.5+ and they felt like a steam roller. here's my suggestion, get some good R compound tires and put them on the stockers for track days. change your diff fluid after track days too. if Suby is still using the R160 in the rear, they don't handle heat like the r180's do in the STi's. i've popped a few rear diffs on the track:nonono:
ok I will. the diff fluid needs to be changed as is. I changed it at 30K and i was planning on changing it again at 60K. i'll get ic changed before I get on the track. currently has 55K. my first time out im going to be easy on her. since its an open lapping day, i'll probably run a few laps at a time and let the car rest for 15-20 minutes in between. just for fun you know. any other suggestions? I was thinking about putting a thicker oil in her too. maybe like a 10w40. when I talked with with royal purple on the phone, they said i could safely run a 5w30 in their HPS or XPR lines, that it would be unnecessary to fun anything thicker for casual open lapping track days.