For those looking for extreme adjustability and control if you are racing your Supra there is coil over springs from QA-1 and camber adjustable pillowball mounts from Cusco Japan.  The coil-overs allow you to adjust ride height as well as giving you a large array of choices for spring rates.  I am using 350lb/in springs since my car is still driven on the street.  For a race only car 400-450 would probalbly give a better result.  That being said 350 is still quite a bit more than the stock rate which is around 220lb/in, the car is very stiff and is not very comfortable to ride in. Here is what is included in the kit, it can be purchased from www.paradiseracing.com or www.935motorsports.com 

The front camber plates are made by Cusco and will have to be special ordered from Japan.  The part number is 180-410A, any Cusco dealer should be able to order these for you.  I recommend www.935motorsports.com because they are familiar with the MK2 Supra and can be sure to get you the right parts. Here are the contents of the camber plate kit.

Installation requires some fabrication and about 3 to 4 hours of your time.  The first step is to get the car in the air and on jack stands and remove the struts from the car.  Unbolt the caliper and move it to the side, do not suspend it from the brake hose, use a piece of coathanger to hold it up if you need to.  If you have not had the struts out before you will need to slot the mounting tab where the brake line attaches to the strut tube.  If it is already cut bend it open and free the brake line. Next remove the 2 lower 17mm strut bolts and the 3 upper 14mm strut bolts.  Pry the control arm down and pull the strut out.  If you are having difficulty prying the control arm down enough to get the strut out you can unbolt the swaybar endlink to make it easier.  Once you have them off the car use a spring compressor to compress the spring and unbolt the upper mount.  Once the spring and upper mounts are off remove the strut from the tube.

 Now you are ready to cut the lower spring perch off of the strut tube.  Using a cutoff wheel with a die grinder seems to be the easiest way to do this.  make small cuts all around the perimeter of the perch leaving about 1/8" of the perch still attached to the strut tube.  Here is the cutting in progress on one of my perches.

Once the perch is removed grind what's left on the tube nice and smooth.  You don't want any sharp edges when you are reaching under there to adjust your ride height. Here is a picture of a completed perch ready to go.

Next you need to cut the adjustment collar to size to fit between the perch and the top of the strut tube.  If you order the kits from Paradise Racing they will cut them to size for you before shipping them out, I ordered the full length sleeves because I wasn't sure how  I wanted to install my kit.  The other option you have is to completely remove the stock perch and weld on a new one even lower to fit the full length adjustment sleeve, if you are really going for that super low look.  Here is a picture of the cut perch on the strut tube.

Now just reinstall your strut and the upper nut that holds it in, and thread on the new lower spring perch supplied in the kit.

Now you need to remove the center part of the upper perch that contains that keeps the strut from turning while you are tightening the upper nut. I used a a hole saw on a drill press to pop these out like this.

Now use the wire ties supplied in the kit to attach the upper perch to the spring and slide it onto the new lower perch.  Slide on the center of the old upper strut mount and the coilover assembly is complete.  If you are not installing the camber plates you can put on your old strut mounts and tighten the top nut while holding the center from the old upper spring mount in place with a pair of pliers.  I also cut the bump stop in half and slid the top half back on the strut before I put the spring on.

If you are installing camber plates at the same time as the coilovers take one of the spacers that comes in the camber plate kit and cut it exactly in half with a hacksaw.  Place one half of the spacer at the top of each strut for the optimum fitment.  The old upper mount plus half of one of the Cusco mounts makes for just the right amount of space for things to fit tightly.  Once the camber plate is in place at the top of the strut tighten its nut while holding the old upper mount center in place with a pair of channel lock pliers. 

Now just reinstall the strut assembly on the car.  Find a level place to adjust the ride height and tighten the adjuster set screw when you have it where you want it.  Here are a few pictures of what it all looks like installed.

You can see in the last picture that the adjustment knob for my AGX shocks will no longer fit correctly.  I am trying to find  permanent solution for this but for now I have to use needle nose pliers to make adjustments.

Any questions or comments should be adressed to wjh@ufl.edu