[P_G]

Shaun, the B7 RS4 discs are 365 mm and pinned rather than slotted so an even worse design than what we have so I can't se how 370mm RS3 discs couldn't work, like you said perhaps for track work but for me this is just improved road use.

[45bvtc]

If only to show the revised 47i6 brake caliper mounting arrangement - the bit you need to change to mount a different brake caliper:

 

 

 

This is one of the first 47i6 upgrades (maybe catnip's) applied to a UK based car that arrived in my garage for review: note the new and revised brake caliper mounting bracket required for the 47i6 brake caliper modified to utilise the REQILL® Tuned Absorbers (and in my view the ineffective and useless REQILL® Tuned Absorbers ).  

 

You can clearly differentiate between the original and revised parts by looking at the aged/corroded original parts.

[T-800]

The 8v discs are pretty similar as well Graham so I agree they should work ok.

The guys at Bks-tuning confirm their mounting bracket is correct for fitment of this 8 pot.

I'd probably take the splash guard off or give it a bit of a hair cut
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Edited by T-800, 20 August 2015 - 09:18 AM.

[Duke3D]

Yeah the guard will only require reshaping at the ends at the calliper opening and a fresh lick of paint to stop rust. Quick job with an angle grinder.

[P_G]

If you go the 8-pot route the B7 RS4 owners were evenly split between Ferrodo DS2500 and Yellowstuffs for pads to use. I did the latter with no adverse effects and both have brake wear sensors.

[45bvtc]

The 8v discs are pretty similar as well Graham so I agree they should work ok.

The guys at Bks-tuning confirm their mounting bracket is correct for fitment of this 8 pot.

I'd probably take the splash guard off or give it a bit of a hair cut
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Splash (dirt shields) guards for road cars are not at all necessary, Sean: I had this discussion with Lockheed/Girling many years ago whilst in a professional capacity; I also believe sans shields helps in brake disc cooling as far more surface area is exposed to the available air flow; our A2 for example came with rusty brake discs (purchased immediately after a Stafford Audi MOT) and near rotten dirt shield and I had zero hesitation in binning 'em.  Suzy (our A2) runs sans dirt shields front and rear with zero adverse effect.

 

With all the Audi messing around with front ducts on the 8P RS3 I remain surprised they didn't bin 'em; and as you've already discovered/measured, the offside brake disc running hotter than the nearside brake disc anyway, or was it the nearside running hotter…  One or the other anyway.   

[T-800]

Splash (dirt shields) guards for road cars are not at all necessary, Sean: I had this discussion with Lockheed/Girling many years ago whilst in a professional capacity; I also believe sans shields helps in brake disc cooling as far more surface area is exposed to the available air flow; our A2 for example came with rusty brake discs (purchased immediately after a Stafford Audi MOT) and near rotten dirt shield and I had zero hesitation in binning 'em. Suzy (our A2) runs sans dirt shields front and rear with zero adverse effect.

With all the Audi messing around with front ducts on the 8P RS3 I remain surprised they didn't bin 'em; and as you've already discovered/measured, the offside brake disc running hotter than the nearside brake disc anyway, or was it the nearside running hotter… One or the other anyway.

I agree John........

Just had this very discussion with the mechanic across the way, he agrees better to remove splash guard altogether as it hinders air flow and cooling

I've decided that's what I'm gonna do

When we measured temps it was indeed drivers side running 60 deg hotter

Bracket and Calipers will be ordered before end of the day


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[45bvtc]

I know you're seeing 8P/8V RS3 front brakes here (take a good look at that anti-squeal bobbin):

 

 

 

but have you had a look at the 8V RS3 rears?

 

 

Just me thinking outside the box, again... 

[T-800]

Sorry John...........

What about the rears?

 

You think there could be a fouling issue between wheel and front caliper .........? the calipers I'm thinking of using don't have that anti-squeal bobbin on   

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Edited by T-800, 20 August 2015 - 12:06 PM.

[45bvtc]

Sorry John...........

What about the rears?

 

You think there could be a fouling issue between wheel and front caliper .........? the calipers I'm thinking of using don't have that anti-squeal bobbin on   

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No Sean, not the fronts; it'sjust that when I took a look at an 8V RS3 at Stafford Audi recently and in particular its front brakes I was surprised by how much Audi had beefed-up the rears - so was just thinking of front to rear brake balance.

[T-800]

They may have increased it from 310 to 330 similar to RS4 size...................

[P_G]

The rears are not used that much anyway unless with really heavy braking.

[T-800]

There is info online to suggest the 8V still Uses 310 mm Discs..........

 

As does the 8V S3 and Golf R............

Edited by T-800, 20 August 2015 - 01:15 PM.

[T-800]

TPS have confirmed
8 V RS 3 still uses 310 x 22 rear discs


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[45bvtc]

TPS have confirmed
8 V RS 3 still uses 310 x 22 rear discs


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Yep, tis the caliper that's changed and not the disc diameter; and P_G is 100% correct, it was just an observation... 

[Duke3D]

John remember the 8v has an electric handbrake so it will differ from our rear callipers. I can't really gauge from the picture how big they are.

[Duke3D]

I'm sure I saw somewhere on the web about a kit to fit 4pot callipers onto the rear of an 8P. I will have to go hunting later.

[T-800]

Yeah......
This A3 loaner we've still got has same elecy caliper setup


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[Paul]

Good luck with the conversion Sean. I would be interested in your findings/ costs.

Ceramic brakes would be the holy grail , but horrendously expensive.

Edited by Paul, 20 August 2015 - 10:50 PM.

[T-800]

Just need the damn car back first

I think Audi have sold it on

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Edited by T-800, 20 August 2015 - 05:12 PM.