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One
of the most overlooked parts of vehicle modifications are
the brakes. Wether you are trying to slow down at the end
of the 1/4 mile, slowing down to make a turn on the racetrack,
or just stopping to avoid hitting a child playing in the street
the braking system on your MK2 should not be overlooked. Here
I will outline a basic brake upgrade and rebuilding that will
bring your braking abilities to above stock levels and assure
that your Supra will stop as well as it goes.
Its a safe bet that your old rubber hydraulic brake lines
are in pretty bad shape after over 20 years of hard use. You
could replace them with all new rubber lines, but there is
something even better avaliable. Stainless steel brake lines
will give you a more positive brake feel and resist ballooning
like the rubber lines tend to do. Stainless steel braided
Teflon brake lines are manufactured for the second generation
Supra by Goodrige and Technafit. I purchased the Technafit
8 line kit as it is readily avaliable from rabidchimp.com
, below is a picture of the kit. The kit is fully DOT legal
and easy to install. You can help support this website by
purchasing these brake lines from RabidChimp using the button
below, the price is $180 including fast USPS shipping in the
USA.

The next items that were due for an upgrade were the brake
rotors. The old rotors were very visibly worn and were probably
the originals from the factory. There was even some deep grooves
in some parts of the rotors. Brembo makes high quality replacement
rotors for the Supra. rabidchimp.com also stocks the Brembo
rotors for the Supra, for a very reasonable price. Here are
some pictures of the shiny new rotors. Use the buttons below
to purchase these rotors from RabidChimp and help keep this
website going.
I also
decided that I might as well rebuild the brake calipers on
the car. Even though they were not leaking any fluid I decided
to do this a preventative mantenance while I had everything
apart. The brake caliper rebuild kits were sourced at AutoZone
the front kits were approximately $5 per caliper, and the
rear kits were $13 per caliper.
Here is
a brief walkthrough of the caliper rebuild process. First
you need to start with a clean dissasembled caliper. To remove
the brake pistons use compressed air to force the piston out
by blowing into the hole where the brake line attatches to
the caliper. Be careful and cover the piston with a rag as
it may shoot out of the caliper rather violently as well as
spray brake fluid everywhere. Once the piston is out remove
all the seals and dust boots. Then scrub the caliper and piston
inside and out and let them dry.
Now you have a clean empty caliper that is ready for rebuilding.
First lubricate the piston seal in brake fluid and place it
into the lower groove of the caliper.

When the seal is fully seated in the groove coat the outside
of the piston with brake fluid and press it into the caliper
fully.

Once the piston is pressed all the way in slide the dust boot
into the upper groove of the caliper like this.

Now place the spring clip in the groove to hold the dust boot
in place.

Now slide the dust boot around the upper groove of the piston
and you will now have a completed rebuilt piston.

If your
kit came with them replace the caliper mounting bolt dust
boots, make sure to grease the insides of them up well so
the caliper will "float" on the rotor properly.
To finish things off I painted the calipers with a high temp
engine enamel from DupliColor. I painted the caliper mounting
plates this way as well. The paint will withstand up to 500
degrees and offers a durable and good looking finish for a
low price.
Now its time to bolt all the new parts together. I finished
off the brake upgrade with a full set of AXXIS Metal Master
brake pads. After having these pads installed on my vehicle
for several months now I can say that they are a very good
pad and are capable of stopping the car without fading even
from triple digit speeds. The brake fluid I use is Valvoline
Synpower, it has a boiling point of over 500 degrees which
is very desireable.
Here are some shots of the completed front and rear brakes.
Everything is brand new and better than ever now.

FRONT

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