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Larger diameter brake discs on D4 2014.
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disco68
 


Member Since: 09 Jun 2006
Location: Naples
Posts: 400

Italy 2006 Discovery 3 TDV6 S Auto Zermatt SilverDiscovery 3
Larger diameter brake discs on D4 2014.

Hi, I'm owner of a Discovey 4 MY2014 whose braking has always been rather weak: if it's possible I would like to improve it by mounting larger diameter brake discs.
When I bought my D4 it fitted ''18 wheels: seeing the picture it's clear to understand that the brake discs are undersized.

Could I mount larger diameter brake discs on my D4? .. for example, could I mount those of the D4 that already have ''19 wheels?
If it's possible, should I change the brake calipers as well?

Thanks to who want to help me!

Click image to enlarge
 D3 TDV6, Zermatt Silver, Coil Spring Suspension, Tyres 285/55 R 18
D4 TDV6, Santorini Black, Coil Spring Suspension, Tyres 285/45 R 20 
 
Post #202256426th Jan 2019 3:53 pm
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8044

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

18” wheels will fit all D4s as far as I know, I cannot see anyone fitting smaller brake disks to a D4, if you have “weak” brakes you have a problem elsewhere, brakes on my D4 are superb. Thumbs Up
What is the diameter of your disks?
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #202264526th Jan 2019 8:33 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20713

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

The only real "upgrade" for D4 is the 6 pot Brembo setup...
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #202264726th Jan 2019 8:37 pm
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JonM
 


Member Since: 24 May 2012
Location: North Yorkshire
Posts: 1235

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

18 inch wheels don't fit on a D4 because of the brake (except compomotive wheels which the ones in the picture aren't).

Those discs in the photo look very small. Has someone already modified it and fitted smaller brakes to make the wheels fit?

I always found the D4 brakes very good and certainly not in need of any upgrade.

I've just noticed that yours is a coil spring one. All the UK ones were air sprung, perhaps that is the reasonon for the difference.

Perhaps fit a full set of genuine UK spec D4 brakes but you'll need to change to 19 or 20 inch wheels if you do.
 MY2022 D5 HSE D300 - with extra nice bits added
MY2019 D5 HSE 3.0 SDV6 - sold to a dealer for a crazy price! - So good I bought another!
MY2012 D4 HSE 3.0 SDV6 - retired to a new home
 
 
Post #202267727th Jan 2019 12:23 am
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disco68
 


Member Since: 09 Jun 2006
Location: Naples
Posts: 400

Italy 2006 Discovery 3 TDV6 S Auto Zermatt SilverDiscovery 3

Probably I didn't explain well: my D4 (base version, 211 hp) was originally with ''18 wheels because is a base version with coil springs suspension currently selled in Italy.

Now, how you can see in the photo in attached, I have replaced the original ''18 wheels with ''20 wheels from RRS, so I would like to fit larger diameter brake discs because now there i a lot of empty space.
I would like to fit D4 upgraded brake discs (that are fitted on D4 SE or HSE with air suspension) or also larger brake discs (for example RRS ones) if it's possible considering that now I have ''20 wheels .
 D3 TDV6, Zermatt Silver, Coil Spring Suspension, Tyres 285/55 R 18
D4 TDV6, Santorini Black, Coil Spring Suspension, Tyres 285/45 R 20 
 
Post #202268927th Jan 2019 6:55 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20713

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

In that case, you can fit the normal V8 upgrade, D4 standard setup, 4 pot Brembo's or 6 pot Brembos

Whatever fits you needs/budget Thumbs Up
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #202269327th Jan 2019 7:10 am
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disco68
 


Member Since: 09 Jun 2006
Location: Naples
Posts: 400

Italy 2006 Discovery 3 TDV6 S Auto Zermatt SilverDiscovery 3

This is my will:

Click image to enlarge


Click image to enlarge


Click image to enlarge
 D3 TDV6, Zermatt Silver, Coil Spring Suspension, Tyres 285/55 R 18
D4 TDV6, Santorini Black, Coil Spring Suspension, Tyres 285/45 R 20 
 
Post #202269627th Jan 2019 7:34 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20713

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

I have a set of 6 pot Brembo calipers for sale. As in the picture, but unpainted Thumbs Up
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #202269827th Jan 2019 8:00 am
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dgardel
 


Member Since: 03 Nov 2009
Location: Greater Venice
Posts: 2025

Italy 2014 Discovery 4 3.0 SDV6 XXV LE Auto Santorini BlackDiscovery 4
Re: Larger diameter brake discs on D4 2014.

disco68 wrote:
Hi, I'm owner of a Discovey 4 MY2014 whose braking has always been rather weak: if it's possible I would like to improve it by mounting larger diameter brake discs.
When I bought my D4 it fitted ''18 wheels: seeing the picture it's clear to understand that the brake discs are undersized.

Could I mount larger diameter brake discs on my D4? .. for example, could I mount those of the D4 that already have ''19 wheels?
If it's possible, should I change the brake calipers as well?

Thanks to who want to help me!

Click image to enlarge


Is it my idea or your front brake discs is smaller than mine. My D4 is a MY15 XXV with 20" rims....


Click image to enlarge
 Discovery 5 tdv6 HSE Corris Gray Outback Engineering Limited Edition

IID Pro MV License

 
 
Post #202272227th Jan 2019 9:27 am
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Kazik13
 


Member Since: 13 Sep 2017
Location: Wroclaw
Posts: 19

Poland 

Regular disc diameter for DIV with 3.0 engine is 360mm for 2.7 is 317mm.
It seems you have 2.7 disks.
  
Post #202272827th Jan 2019 10:08 am
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8044

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

Which means you’ve D3 calipers= easy v8 upgrade Thumbs Up
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #202276027th Jan 2019 12:03 pm
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