I have a 1991 240sx with active 4 wheel steering option installed. I‘m leaning to a drift setup for the car. I was wondering if having the 4 wheel steering option make it harder for the car to drift. If it does, is there any way to take out the 4 wheel steering system?
You can replace the HICUS rack in the rear with a solid replacement. Stillen and several other manufactures. Your car Hicus is driven off of the power steering pump and has two tubes running to the rear of the car. Hicus makes the rear wheels follow the front in high speed lane change and work counter to the front in low speed parking. Both functions will adversely effect the way you want the rear to kick out during power slides. Then you will need approx 100 more hp to really make the car slide.
Rear steer was also standard on every FC (86-91 Mazda RX7), but was a passive system called Dynamic Tracking Suspension System or DTSS for short. It works by adjusting the toe angle on the rear wheels to make the rear tires turn the opposite way of the front tires. Active 4 wheel steering on the S13 operates like this at lower speeds, but switches to making the rear wheels follow the front at higher speeds. For drift purposes, it is usually eliminated to make the car behave more predictably in the hands of an experienced driver. If removing the rear rack doesn't sound too thrilling, you might try fabricating an override 'switch' for it, to keep the rear tires locked straight ahead. Since John Paul said that it works off of the power steering pump, I'm going to assume that it works hydraulically. In this case, a simple valve might do the job for you.
