When in neutral, i push clutch right in, and give it some revs. 3500-5000rpm it grinds. Even when its in a gear and clutch right in, rev and it grinds. And when driving, changing gears at high revs grinds. If i let revs drop to 2000-3000rpm its no worries.
1993 nissan skyline r33 GTsT. Manual, single turbo. RB25DET.