FIGS Engineering: Supra Disc Upgrade

sprinter2012

24-07-2019, 02:41 PM #31

Put this in my project thread already, but thought I'd add it in here as well so the info is all in one place...

Started off with stock calipers, on stock brackets, on stock discs, like this...

[Image: DSC00226.jpg]

First step is to undo the slide pin bolts using a 14mm spanner on the back, and a 17mm on the pin itself to stop it rotating. You may not need the 17mm spanner, but if you plan to re-use the dust boots it's better to use it anyway or you risk tearing them...

[Image: undopintop.jpg]

[Image: undopinbottom.jpg]

Then put the caliper out of the way on an axle stand for now...

[Image: support.jpg]

Once they are off, you can remove the caliper brackets. This is super easy as all you have to do is undo the two 17mm bolts that hold the caliper bracket onto the hub.

With the old bracket off, you can start assembling the new brackets, the first thing I did was to press the new dust boots in. Simply slot a socket over the top of the rubber boot so it rests on the metal collar, and either tap it in with a hammer, or squeeze it in with a vice like I did...

[Image: DSC00211.jpg]

[Image: DSC00212.jpg]

[Image: DSC00214.jpg]

[Image: DSC00216.jpg]

[Image: DSC00217.jpg]

I then removed the slide pins, changed the rubber bush on the pin, greased it up and put it into the corresponding hole on the new bracket (make sure they go in the right hole as they are different!)

[Image: DSC00227.jpg]

[Image: DSC00228.jpg]

I then removed, and refitted the pad retaining/slide clips into the new brackets and greased them up too...

[Image: DSC00235.jpg]

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sprinter2012

24-07-2019, 02:42 PM #32

Next job was the dust shields, most people just cut these off completely. But being an engineer that seemed too simple, plus I wanted to keep the cooling effects of the air duct at the front of the shield. You can also just bend them back out of the way but that seemed too ghetto and again, too easy.

So I put slots all the way along the sections of the dust shield which overhang the top and bottom of the old disc like this...

[Image: DSC00231.jpg]

I then bent them upwards, chopped them off and smoothed off the edge so I was now left with this perfectly fitting and still fully functioning air duct/dust shield...

[Image: DSC00232.jpg]

[Image: DSC00233.jpg]

With the discs now able to fit properly and the mounting hardware transferred onto the new brackets I slid the discs on, put the new pads into the brackets and remounted them over the disc onto the hub...

[Image: DSC00236.jpg]

[Image: DSC00237.jpg]

The only job left then was to press the pistons back into the calipers and bolt them back onto the brackets, forget to take a picture of them without the wheel, and then have to take a crappy picture through a very dirty wheel...

[Image: DSC00238.jpg]

I've only put about 20 miles through them so far but I'm already finding myself stopping short at junctions and slowing down too much coming into corners, so I can't wait to see how they perform once they are properly bedded in!

And just for comparison so you can see the difference in size between the old and new here's a gif I made to show the two sizes...

[Image: DSC00239-1.gif]

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