Hi, Chisto, and welcome to GTPlanet.
First, as Z32 mentioned, try searching for "RX-7" or "RX7" on this board (the settings board, not the main GT3 board) and see what turns up.
Second, we need a little more information in order to help you. Settings are not some magical thing you can just put on a car. You need some idea of what you're attempting to change about the car.
Third, if you're looking for good handling race settings, try these:
Springs: 10.8/10.0
Ride Ht: 88/90
Bound: 5/6
Rebound: 6/8
Camber: 3.2/1.0
Toe: +0.5/-0.5
Stabs: 3/3
Brakes: 14/12