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Java Jungle



Member Since: 22 Mar 2010
Location: Monte-Carlo
Posts: 420

Monaco 2011 Range Rover Autobiography 4.4 V8 Nara Bronze

January 2010 that was...


JJ

Post #172877 17th Feb 2013 6:03pm
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Philip



Member Since: 05 Jan 2010
Location: UK
Posts: 2563

2019 Range Rover Autobiography SDV8 Aintree Green

5.0 wrote:
robjp wrote:
Then again, why on earth does such a vehicle need such enormous brakes - they aren't supposed to be driven like a sports car !


For my safety I quite like to be able to stop in a hurry when travelling on the motorway at 70mph. This is something the L322 has never been terribly good at compared to other large luxury vehicles or SUVs although the 2010+ models were much better than the earlier ones


The size of the brakes is, within reason, irrelevant for single stops - bigger ones are just better at getting rid of heat generated so they can stop repeatedly without overheating. If your standard brakes can bring the wheels to the point of lock-up (or triggering of ABS), it's the tyres that are limiting how hard you can stop.

Post #172884 17th Feb 2013 6:44pm
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Autobiography



Member Since: 10 May 2011
Location: UK
Posts: 922

2018 Range Rover SVAutobiography 5.0 SC V8 Santorini Black

MY14 already has quite a few changes taking place...look at the other thread. Main changes:

- New badges
- New RSE software
- New RSE remote
- New colours and new options
- New supercharged 3.0 (although I doubt this will make the UK market as specs are between TDV6 and SDV8)

Post #172885 17th Feb 2013 6:45pm
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5.0



Member Since: 25 Feb 2012
Location: Surrey
Posts: 716

United Kingdom 

Trommel wrote:
5.0 wrote:
robjp wrote:
Then again, why on earth does such a vehicle need such enormous brakes - they aren't supposed to be driven like a sports car !


For my safety I quite like to be able to stop in a hurry when travelling on the motorway at 70mph. This is something the L322 has never been terribly good at compared to other large luxury vehicles or SUVs although the 2010+ models were much better than the earlier ones


The size of the brakes is, within reason, irrelevant for single stops - bigger ones are just better at getting rid of heat generated so they can stop repeatedly without overheating. If your standard brakes can bring the wheels to the point of lock-up (or triggering of ABS), it's the tyres that are limiting how hard you can stop.


The greater the surface area of pad and disc in contact the greater the friction and therefore retardation. Larger brakes result in faster braking and better brake feel. When you stand on the anchors on the motorway the ABS doesn't kick in straight away does it? Sure the tyres are important as well as the brakes in aiding the stopping distance but they are not the only thing limiting the stopping distance. For example, take an L322 2010+ with the same wheels and tyres versus one older than this and the stopping distance is less. This is purely down to the brakes as everything else remains the same.

Post #172891 17th Feb 2013 6:59pm
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5.0



Member Since: 25 Feb 2012
Location: Surrey
Posts: 716

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Autobiography wrote:
MY14 already has quite a few changes taking place...look at the other thread. Main changes:

- New badges
- New RSE software
- New RSE remote
- New colours and new options
- New supercharged 3.0 (although I doubt this will make the UK market as specs are between TDV6 and SDV8)


And stop/start technology on the 4.4 and 5.0. Can't imagine why this wasn't available from launch!

I find LR's recent habit of making material changes almost every new model year to vehicles quite annoying. I can't imagine even the Americans and the Chinese being conned into replacing their cars every year! Why they cant just do one mid life change/upgrade like most other manufacturers I don't know. I can remember an early L405 video with Gerry Mcgovern saying it was a policy to regularly update and not to give everything up front. One can only hope that one of the things they have got in the immediate pipeline is to replace the multimedia interface - like in the next year before I get mine Laughing

Post #172897 17th Feb 2013 7:11pm
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Philip



Member Since: 05 Jan 2010
Location: UK
Posts: 2563

2019 Range Rover Autobiography SDV8 Aintree Green

5.0 wrote:
The greater the surface area of pad and disc in contact the greater the friction and therefore retardation. Larger brakes result in faster braking and better brake feel. When you stand on the anchors on the motorway the ABS doesn't kick in straight away does it? Sure the tyres are important as well as the brakes in aiding the stopping distance but they are not the only thing limiting the stopping distance. For example, take an L322 2010+ with the same wheels and tyres versus one older than this and the stopping distance is less. This is purely down to the brakes as everything else remains the same.


Coefficient of friction between the tyre and the road alone dictates how quickly you are able to stop if your brakes are capable of reaching the point of tyre lock-up.

Greater leverage from larger diameter discs may theoretically mean you can apply maximum braking effort more quickly, but I doubt it would ever be noticeable. Obviously there are many variables - brake assist, ABS settings, pad compounds and so on.

Brake feel is a different matter.

Post #172900 17th Feb 2013 7:19pm
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5.0



Member Since: 25 Feb 2012
Location: Surrey
Posts: 716

United Kingdom 

Trommel wrote:
5.0 wrote:
The greater the surface area of pad and disc in contact the greater the friction and therefore retardation. Larger brakes result in faster braking and better brake feel. When you stand on the anchors on the motorway the ABS doesn't kick in straight away does it? Sure the tyres are important as well as the brakes in aiding the stopping distance but they are not the only thing limiting the stopping distance. For example, take an L322 2010+ with the same wheels and tyres versus one older than this and the stopping distance is less. This is purely down to the brakes as everything else remains the same.


Coefficient of friction between the tyre and the road alone dictates how quickly you are able to stop if your brakes are capable of reaching the point of tyre lock-up.

Greater leverage from larger diameter discs may theoretically mean you can apply maximum braking effort more quickly, but I doubt it would ever be noticeable. Obviously there are many variables - brake assist, ABS settings, pad compounds and so on.

Brake feel is a different matter.


Agree with the point on the tyres entirely but on a dry motorway at speed you slam on the brakes on a 2010 with the same size tires versus a 2006 say and you will stop faster. This is down to brakes because you get more braking effort before the point of lock up and it is very noticeable. LR even made a point of this in marketing material for the 2010 supercharged upgrade.

Post #172905 17th Feb 2013 7:27pm
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Philip



Member Since: 05 Jan 2010
Location: UK
Posts: 2563

2019 Range Rover Autobiography SDV8 Aintree Green

5.0 wrote:
Agree with the point on the tyres entirely but on a dry motorway at speed you slam on the brakes on a 2010 with the same size tires versus a 2006 say and you will stop faster. This is down to brakes because you get more braking effort before the point of lock up and it is very noticeable. LR even made a point of this in marketing material for the 2010 supercharged upgrade.


Remove the ABS and brake assist from both cars, slam the brakes on as hard as possible - the wheels on both will lock. You might be able to measure slightly more initial retardation from the car with bigger-diameter discs etc. but you will get to the point of lock-up so quickly I can't imagine it could ever be a major factor in stopping distances.

The 2010 cars were the first to get brake assist (I think).

Anyway, off topic and I'll take the one with the six-pots and 380mm discs.

Post #172912 17th Feb 2013 7:59pm
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Autobiography



Member Since: 10 May 2011
Location: UK
Posts: 922

2018 Range Rover SVAutobiography 5.0 SC V8 Santorini Black

The MY changes bug the hell out of me too as well. They are too extreme IMHO for a simple model year change. I get mid-life cycle changes but it really annoyed me that they changed the grille, side vents, handles, badging, and bodykit a few months after I purchased my 11MY Autobiography.

Post #172915 17th Feb 2013 8:10pm
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Java Jungle



Member Since: 22 Mar 2010
Location: Monte-Carlo
Posts: 420

Monaco 2011 Range Rover Autobiography 4.4 V8 Nara Bronze

- New supercharged 3.0 (although I doubt this will make the UK market as specs are between TDV6 and SDV8)

Autobiography, I know it may sound silly but what if they droped the 4.4 for the 3.0 supercharged?
I got the first facelift MY 2010 with the 3.6 and the following MY 2011 was the 4.4....just saying Rolling Eyes

JJ

Post #172919 17th Feb 2013 9:05pm
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5.0



Member Since: 25 Feb 2012
Location: Surrey
Posts: 716

United Kingdom 

Java Jungle wrote:
- New supercharged 3.0 (although I doubt this will make the UK market as specs are between TDV6 and SDV8)

Autobiography, I know it may sound silly but what if they droped the 4.4 for the 3.0 supercharged?
I got the first facelift MY 2010 with the 3.6 and the following MY 2011 was the 4.4....just saying Rolling Eyes

JJ



I think they would be missing a trick not to offer the V6 supercharged in the UK. Given that the car has been engineered anyway for more petrol oriented markets why not offer it in the UK? There is a market here for people who don't like diesels and don't need the performance of the 5.0 but would like the refinement and economy of a lower capacity petrol.

Post #172920 17th Feb 2013 9:21pm
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Java Jungle



Member Since: 22 Mar 2010
Location: Monte-Carlo
Posts: 420

Monaco 2011 Range Rover Autobiography 4.4 V8 Nara Bronze

5.0 Thumbs Up


JJ

Post #172927 17th Feb 2013 9:46pm
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patron_123



Member Since: 15 Mar 2013
Location: Istanbul
Posts: 4

2013 Range Rover Autobiography TDV8 Adriatic Blue
4.4 or supercharged ???

hello everyone..

i'm getting my L405 really soon. but i have one thing to make sure, is supercharged engine really worth rather than 4.4 SDV8 ??

i know that 4.4 SDV8 is a very powerful and quality engine but I assume it cant be feel the same as supercharged.

Considering that in my country supercharged is about 20K EUR more than SDV8. I need some advise people who drove both, would it be worth to go for supercharged?? Just Love Cars..!!

Post #177787 15th Mar 2013 6:17pm
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verydisco



Member Since: 10 Dec 2009
Location: UK/US
Posts: 2952

United Kingdom 2002 Range Rover Vogue 4.4 V8 Tangiers Orange
Re: 4.4 or supercharged ???

patron_123 wrote:
I need some advise people who drove both, would it be worth to go for supercharged??


I drove all three engines back to back for a full day.

The SDV6 and SDV8 experiences are quite different. (anyone thinking about this, go for the SDV8, if you can)

The S/C is really above it all Thumbs Up Patron_123, if you can srare an extra 20 K€ right away and do not care about the massive depreciation (and having to fill up twice as often) go for it !

Realistically though, I would really order the SDV8, go all in with the Autobiography and still save a few thousands for a nice trip with the Rangie to the Alps or Monaco.

Enjoy. l=Oo\________/oO=l l:OolΞΞΞΞΞΞΞloO:l

Current
RANGE ROVER Vogue 4.4L SDV8 - 2013 - Indus Silver, on Almond.
RANGE ROVER Vogue 4.4L V8 - 2002 - ex-2003 G4 Challenge Event Vehicle, Stage 3: Australia
RANGE ROVER HSE 4.4L V8 - 2004 - one-of-one Overfinch
RANGE ROVER P38a 4.0L V8 - 1999 - ex-2000 TReK Event Vehicle: South Africa

Previous:
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Post #177789 15th Mar 2013 6:32pm
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wackyjim



Member Since: 11 Aug 2010
Location: Brigadoon
Posts: 2014

Scotland 2011 Range Rover SE TDV8 Santorini Black

It would be the 4.4 TDV8 for me everytime and if you can save €20k then that's even better Thumbs Up

Post #177790 15th Mar 2013 6:34pm
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