try the Nissan 180SX (200SX in EU and 240SX in US), SilEighty, or the Silvia S13 K's. All of these SR20 users are not bad cars to start drifting with.
For settings, try soft rear springs and even anti-roll bars settings. Since you're going for low hp, a locked diff is not recommended, since it gives you too much grip. If I were you, I'd set my LSD settings to around 40/40/40, probably weaker. play around with the diff settings until you're comfortable.