outofyorkshire
Member Since: 27 Apr 2009
Location: Emigrated to Notts
Posts: 1021
  
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On a slightly different track.. if the D3 std set up was OK why did LR put bigger discs & pads on the D4??
Ok it has a bigger engine and more HP but the weight of the thing is not considerably more. Cheers Ian
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MY13 FL2 HSE lux - just gone
MY10 D4 XS
MY07 D3 SE
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 26th Mar 2014 10:28 am |
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Woolmeister
Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3459
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I understand the D4 is actually lighter than a D3  2021 BMW iX3 Premier Edition in Carbon Black ⚡️🔌
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2017 Discovery Sport HSE Auto in Carpathian Grey and Ebony Leather. Modern JLR Junk. Gone.
2007 Discovery 3 TDV6 S Manual in Zermatt Silver with Ebony Cloth (143k) Gone, but now patrolling the Asia section of the West Midlands Safari Park!
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| 26th Mar 2014 10:31 am |
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DG
Site Moderator
Member Since: 12 Dec 2005
Location: The Gaff
Posts: 50971
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Because the D4 was a general improvement overall on the D3  21 year LR veteran > D2 GS 2003 > D3 S 2006 > D3 HSE 2009 > D4 HSE 2013 > D4 HSE 2015 > D5 HSE 2018 > DS HSE R-Dynamic P300e 2021
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| 26th Mar 2014 10:44 am |
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chalky
Member Since: 22 Aug 2008
Location: Yorkshire
Posts: 3145
  
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The D4 is much more refined than the D3, there are those that will argue otherwise but the simple fact is it is considerably improved over the 3 !
At launch the 4 will have already been lined up for 8 speed transmission 3
Litre engine with improved torque and the higher output of the SDV6 so upping the stopping power would have been a necessary requirement and with the term night & day being used a lot this is the difference between the two vehicles, altho it shares the same chassis and body and has the same running gear the power output and the way the power is delivered is astonishing !
A re mapped D3 is not the same as a D4 either.
The difference in braking over my 3 with V8 conversion to a D4 which I drive on a daily basis is again night and day, the 4 has what appears to be subtle differences but it is a step up in build, quality, power, refinement. Only dead fish go with the Flow !
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| 26th Mar 2014 10:50 am |
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B16 KJR
Member Since: 10 Jul 2006
Location: Rosyth, Fife
Posts: 3005
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Quote:The standard TDV6 setup is barely adequate, IMHO.
I had a few "moments" when slowing from reasonable speeds, the car just felt like it was not going to slow down.
Much worse when you are towing a caravan Mike, that's why I got mine changed to the V8 brakes
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| 26th Mar 2014 11:58 am |
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tonywolf
Member Since: 19 Apr 2013
Location: Plymouth
Posts: 312
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I cant make my mind up what to do, Brembos or V8 setup  So Q: can you convert the D3 brake disc/calliper setup to a D4 brake disk/ calliper setup  Regards Tony
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| 26th Mar 2014 12:07 pm |
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CGA
Member Since: 03 May 2010
Location: Preferably horrizontal
Posts: 284
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Am I right in thinking that if you install the V8 upgrade on a D3 diesel, you will have to inform your insurance company as it's a modification (they always ask at renewal time if there are any modifications to body, brakes, steering, engine). I.e failure to do will invalidate your insurance.
I suppose any increase in premium will be dependent on the individual insurance company. CGA
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| 26th Mar 2014 2:25 pm |
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chalky
Member Since: 22 Aug 2008
Location: Yorkshire
Posts: 3145
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CGA wrote:Am I right in thinking that if you install the V8 upgrade on a D3 diesel, you will have to inform your insurance company as it's a modification (they always ask at renewal time if there are any modifications to body, brakes, steering, engine). I.e failure to do will invalidate your insurance.
I suppose any increase in premium will be dependent on the individual insurance company.
Yes that is correct you should Always tell your Insurance Providor of all modifications to your vehicle. Only dead fish go with the Flow !
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| 26th Mar 2014 3:36 pm |
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Gareth
Site Moderator
Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26752
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There is one point nobody has mentioned - Wear rates.
I never thought about upgrading the brakes on my 2 previous D3's as I always felt that they stopped more than adequately, however I would be lucky to get 15 - 20k out of a set of front pads, and every other pad change, it would need discs.
I now drive a D4, in the same manner that I drove the D3's, and so far its on 24k on the pads and they are about 50% worn. ( I will subtract 2k from this because the car had a brake fault when new and had new pads and discs at 2k).
So, whilst not all will need or appreciate the greater braking force of upgraded brakes, you may go through less of them.
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| 26th Mar 2014 3:53 pm |
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Chippy
Member Since: 05 Jan 2012
Location: Surrey
Posts: 520
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I take it all who have done the upgrade have informed there insurance company's as the vehicle is now modified ????????????  Transit Custom LWB
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| 26th Mar 2014 5:22 pm |
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yogi972
Member Since: 05 Jun 2011
Location: Kineton
Posts: 3373
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Er...
Yes and why wouldn't we 
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| 26th Mar 2014 5:24 pm |
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Dusty
Member Since: 23 Sep 2013
Location: London
Posts: 1022
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Reading this thread all I can say is too many people seem to be driving around with not enough anticipation (Reading and planning as they used to say in the PSV and HGV worlds) I could count on 1 hand the times I've had to use my brakes in anger in over 30 years of driving (all sorts of different vehicles)
The only time I put them through any stress is bedding in new pads on an empty industrial estate or similar. I find the original set up adequate if lacking a little feel, when my pads wear out I might upgrade to find out if that improves. Discovery 4 HSE
SDV6
2015
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| 26th Mar 2014 5:31 pm |
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Chippy
Member Since: 05 Jan 2012
Location: Surrey
Posts: 520
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Just getting a feel for how much the premium goes up by seeing my car is my own and not on my fleet policy, before I consider doing the mod. Transit Custom LWB
Transit Doublecab SWB
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| 26th Mar 2014 5:32 pm |
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chalky
Member Since: 22 Aug 2008
Location: Yorkshire
Posts: 3145
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I've told them about, side steps, re map, light guards, spot lights, RAI, brakes and other things that I've had done ?
Why would any one risk not getting paid out when a claim comes ? Only dead fish go with the Flow !
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| 26th Mar 2014 5:32 pm |
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