If you're not looking for money and you already have a sr20, just put the 3sfe or the 5sfe back in. Enjoy the good fuel economy. If you really want performance out of the car, 3sgte is going to be the only way. Screw the beams motor, wiring graphs are in Japanese and Parts are impossible to find. You'll spend more going N/A with the beams engine and you won't get as much power with the Beams.