Dyney's 2 pot rear caliper/bracket fitiing instructions
 

This is for the guys that bought the brackets to allow the 2 pot rear disc and calipers from the MY01 WRX to be fitted to the pre99 classics:D

Right guys.
Hopefully you have the brackets in front of you and one of the old calipers off. The brackets are not handed but beware the calipers are!!
Attachment 49173

Clean the mounting surfaces to make sure they are flat and clean.
I used some thread lock on the new bolts for added security. Clean the bolts of the protective oil first if you use thread lock.
I suggest you fit it all to make sure there are no problems and then take one bolt out at a time to apply the thread lock.

You will need to remove the old stone guard as it’s too small for the new disk and may foul the caliper.
Look carefully and you should see 7 spot-welds. Drill these out, a ¼ inch drill should do. You only need to go through the guard!! Not the back plate!!!
Once you have the stone guard off file any rough bits smooth and repaint the bare metal (it will stop it rusting).
Attachment 49174


Right now to fitting the brackets.
You may have to open the gap in front of the back plate slightly. I just used a big screwdriver to give me a few mm more clearance :)
Attachment 49175
As you can see from the pics the widest part of the bracket fits to the hub where the original caliper bolted on. For this use the short bolts. They have a finer thread (M10x 1) for added strength in the aluminium brackets.
The bolt fits from the back, through the back plate and into the bracket.

Fit the disc making sure the hub surface and the inside face of the disc is clean and flat.

Now fit the caliper to the bracket.
Make sure you have the caliper with the bleed nipple at the top!!!!
Remove the old shims on the caliper mounting point. Round flat discs with 2 legs that grip the caliper. (If you haven’t got these don’t worry your only going to throw them away) :)
The mounting lugs should fit in the small cut outs in the bracket.
If you have a wear indicator tab on the pad it needs to be on the front pad or it will foul the bracket!!
Bolt them on from the back, through the bracket into the caliper using the longer bolts.
Attachment 49176
Attachment 49177

Take the brake line off the old calipers and install on the new calipers and bleed the system through the new calipers.
Attachment 49178
Attachment 49179

Before road testing the new brakes please make sure they work by pumping the pedal before you move off!!
Take it gently for the first few miles until the pads and discs have bedded in.

Well done! :D

Blimey mate.. you've had time to type all that AND get ready for the shoot-out??

Superb guide Iain!!

Will be fitting mine shortly!!

Wayne.

Just been nosing at this because my wife's got a MY01 WRX and I changed the rear pads on my MY00 Classic yesterday. I didn't actually realise until I got my wheels off that my Classic has single pot, sliding calipers on the back (thought they were twin-pots.) I was a bit disappointed to see that but the new EBC Red Stuff ceramics have made a huge difference already so it's not all bad.

Out of interest, how come your modification is just for the pre-99 Classics..?

Jonts.

PS: Excellent write-up! :)

Simple, all the later cars already have the larger discs and 2 pot callipers. Either Subaru or Brembo.

Hmmm, well this is what I was assuming given that Subaru had gone to the trouble of fitting 4-pot 'Subaru' calipers on the front of my UK MY00 Turbo. Yesterday though I found out that the backs are just plain 1-pot sliding calipers.

I'm not fussed too much but am curious now. Were 2-pot rears deffo fitted to the late 'UK' Classics or perhaps just the JDMs..? Search time...

Cheers,

Jonts.

Jonts,

Sorry my fault. The classic shape up to and including the my99 my00 had single pot callipers apart from a few editions P1, Type R and the 22B.

All new age cars have the 2 pots.

No problem. Thanks for the info.

Jonts.

Not quite right... P1 does not have the 2 pot rears. Same brake setup as a normal MY99 UK saloon.

Basically the JDM cars with DCCD from version 4 had the 2 pot rears (R180 rear diff).

Tony.

RON,
I was born ready :D
Did the oil change and stuff a few days before and had all day off to get ready.

Jonty,
I know the pre 97 cars all had sigle pot rears. As you have found after that it gets confusing!! I'm sure I have seen MY00 UK cars with 2 pot rears :confused:

If you have the single pot rear calipers then this bracket will alowyou to fit the 2 pots ;)


Tone,
It's not just 'DCCD' cars that got them. I think it was cars without ABS. Though I think those with DCCD didn't get ABS anyway :)

All very confusing!!

Are you noticing any changes in braking performance?

Does the car feel grabby at the rear? Is the pedal more solid and is the pedal length about the same. I am assuming that you have kept the standard uk classic brake master cylinder. Have you noticed the ABS cutting in more often.

Just interested as I have a set of 2 pots lying around and need motivating to fit them

****... my car doesn't have ABS, maybe i should have checked if i already had 2 pots before buying the brackets ;) :D

Post 97 cars all have ABS as standard fit.... unless they have DCCD which could not be run with ABS (which is why the P1 has ABS and sliding rear calipers and not DCCD and 2 pot rears like the STiV Type R it's based on).

Tony.

Errrr..... not quite :)
I have seen a MY99 WRX v-ltd without DCCD and that had the sliders on the rear, don't think it had ABS (as I said very :confused: )

Robin,
I haven't had a chance to push it hard yet, but there were no surprises at SSO when I was hauling on the anchors at 110mph after the end of the qtr mile or at over 140mph at the end of the top speed straight :)

The pedal feels the same as before, no grabing or ABS cutting in.
Not sure what pads are on the rear. Will be upgrading them to DS2500 now it is all fitted and run in.

Sorry, should have been clearer. Post 97 STis i meant... however no UK or WRX should have left the factory with 2 pot rears (or DCCD iirc). The MY99WRX V Limited (according to the jap brochure) should have ABS tho...... :confused:

But i'd say donn't go off any second hand car for looking what should or shouldn't be standard.... god knows what has been done to it during it's life.

Tony :confused:

BTTT for the latest GB'ers :D

your links for the pics don't work.....

They do for me when I click on them :confused:

odd. i used two different browsers... still doesn't work for me.


i get directed to this: http://images3.fotopic.net/errors/nodirectlinking.gif

Iain,

Not working for me either :(

Send them over and I'll host them if you like :)

Thanks Phil, but I'll just host them with Photobucket untill that goes down again :rolleyes:

thanks guys!!

Can you post a link to this thread on NASIOC as I don't have a high enough post count to do so :(

done! :)

Iain - you only need 10 posts to put pictures on there ;)

I know ;)

BTTT for the latest GB :D

Superb bracket mon amie! :luxhello:

Was telling a friend about them... but do you have a solution to the front brakes for a 4 pot upgrade? Or do the 4 pots as on new ages just fit straight onto the front of the classics??

alex,

The 4 pots on the new age (Subaru items and not Brembo's) are the same as those fitted to later classics. They bolt directly to the hubs on all classics without any need for brackets. The only time you need brackets is when fitting Godspeed kits for example. So if you have 2 pots they are a direct swop, with discs of course. (Backing plate may need removing?)

Wayne.

Cool beans, thanks mate! :thumb:

I will tell my friend and I'm sure this will come as good news! He hats the cak brakes on his Scooby and is gaggin for some POTS! ;)

Wow! this is just what I need to sort out my Forester.

Any idea when you're going to get any more of these made Dyney or if you have got any can you PM me.

mike