RE: Bentley: big engines to stay

RE: Bentley: big engines to stay

Thursday 16th February 2012

Bentley: big engines to stay

Bentley makes more 12-cylinder engines than anyone, and will continue to do so



Bentley has vowed not to abandon the W12 engine concept following the launch of the new Continental GT V8 - with the firm's Product Marketing chief Marcus Abbott hinting that technical developments could arrive before the end of the year.

The 6.0 W12 currently produces 575hp and 516lb ft of torque. This is 75hp more than the V8, but torque is only 29lb ft greater. Monster torque is a Bentley trademark so it is likely any refreshed W12 will seek to reassert its advantage here.

V8 is engine downsizing, Bentley fashion
V8 is engine downsizing, Bentley fashion
Abbott revealed developments may follow the path of the old Continental GT.

"We had a Speed version of the old model [which produced 600hp, 40hp more than the standard GT MkI]. But we also had the Supersports, which produced 630hp [and 590lb ft of torque].

"The W12 must always remain the pinnacle of the Continental GT range. There will be more to come before the year is out."

Bentley is currently the world's largest producer of 12 cylinder engines: last year, all but 800 of its 7,000-car sales total used W12 engines. Indeed, engineering boss Brian Gush has said Bentley 12-cylinder production may even outnumber all other 12-cylinder engine producers put together.

Crewe will thus become a Volkswagen Group centre of excellence for the W12 powerplant. This will see it lead developments for the engine, independent of other Volkswagen Group companies.

V8 more efficient but Bentley buyers like W12s
V8 more efficient but Bentley buyers like W12s
The W12 engine was first used by Audi in 2001, with Bentley starting to use it in 2003. Engines are constructed in Crewe, on a parallel production line to the Bentley-designed V8 used by the Mulsanne.

The commitment to the W12 engine comes as Bentley introduces its new 4.0-litre V8 co-developed with Audi. This is 40 per cent more fuel efficient than the W12 - but only 16 per cent of this is due to engine downsizing.

Other efficiency gains come through the use of the new ZF eight-speed gearbox, plus BMW-style efficiency housekeeping such as selective alternator charging and variable-energy power steering.

Such features will likely be introduced on the W12, too: the eight-speed gearbox alone improves efficiency by 6 per cent.

If Abbott's timescale is right, expect to see more from the Continental GT W12 at the Paris Motor Show in September.

  • Stay tuned for a full drive story on the new V8 Continental GT coming soon

 

Author
Discussion

chiefski26

Original Poster:

815 posts

202 months

Thursday 16th February 2012
quotequote all
Excellent news.

Carnnoisseur

531 posts

155 months

Thursday 16th February 2012
quotequote all
The demand for the W12 may diminish for the UK, but as we are not the main demographic, sales are likely to remain strong.

Trusty Steed

292 posts

195 months

Thursday 16th February 2012
quotequote all
My neighbour has a 10 plate GT convertible, he reckons that the new V8 will see his one drop by 30k overnight! Not a happy bunny!

y2blade

56,141 posts

216 months

Thursday 16th February 2012
quotequote all
great news smile

stain

1,051 posts

211 months

Thursday 16th February 2012
quotequote all
Have driven the V8 GTC. Awesome car and much nicer than the 12.

johnpeat

5,328 posts

266 months

Thursday 16th February 2012
quotequote all
Trusty Steed said:
My neighbour has a 10 plate GT convertible, he reckons that the new V8 will see his one drop by 30k overnight! Not a happy bunny!
Bentley owners must be used to sledgehammer depreciation surely??

I was once asked to help someone sell a Flying Spur they'd had for less than 6 months - best offer we could get (from a\ Porsche dealer, ironically) was £34K below list and £62K below deliveyr price (yes, someone went postal in the options department!!)

£62K for 6 months (less than 5000 miles) use is pretty massive - and the dealer who bought it only did so because they had a buyer ready, everyone else basically said 'no thanks'.

RichTBiscuit

430 posts

152 months

Thursday 16th February 2012
quotequote all
Nice one!

do they still run on a phaeton platform with VW switchgear?

E38Ross

35,125 posts

213 months

Thursday 16th February 2012
quotequote all
just out of question - why use a W12 when it is (in theory) inherently less smooth than a V12?

is it purely packaging and development costs?

stain

1,051 posts

211 months

Thursday 16th February 2012
quotequote all
RichTBiscuit said:
Nice one!

do they still run on a phaeton platform with VW switchgear?
No and No

stain

1,051 posts

211 months

Thursday 16th February 2012
quotequote all
E38Ross said:
just out of question - why use a W12 when it is (in theory) inherently less smooth than a V12?

is it purely packaging and development costs?
Yes it is a very compact engine

Gorbyrev

1,160 posts

155 months

Thursday 16th February 2012
quotequote all
Quite a thought that the biggest selling 12 is not a "V" but a George "Dubbyah!" What are the engineering compromises involved in a 4 bank cylinder arrangement?

E38Ross

35,125 posts

213 months

Thursday 16th February 2012
quotequote all
stain said:
E38Ross said:
just out of question - why use a W12 when it is (in theory) inherently less smooth than a V12?

is it purely packaging and development costs?
Yes it is a very compact engine
in that case, will it have 4 cylinder heads?!!?

if so....i bet that's a fecking nightmare to work on when things start going wrong, no?

stain

1,051 posts

211 months

Thursday 16th February 2012
quotequote all
Gorbyrev said:
Quite a thought that the biggest selling 12 is not a "V" but a George "Dubbyah!" What are the engineering compromises involved in a 4 bank cylinder arrangement?
Ironically packaging is one of the big issues. Some components are an engine out job to replace.

Krikkit

26,572 posts

182 months

Thursday 16th February 2012
quotequote all
E38Ross said:
just out of question - why use a W12 when it is (in theory) inherently less smooth than a V12?

is it purely packaging and development costs?
I think it's a packaging and development consideration - it's two turbo'd VR6 lumps together (which they'd already spent money developing), which was a very smooth engine as it was (for a V6) thanks to the narrow angle.

Gorbyrev

1,160 posts

155 months

Thursday 16th February 2012
quotequote all
So it is two narrow angle V6's - 15 degrees as I remember. Drove a VR6 Sharan once - man that thing could go!

XitUp

7,690 posts

205 months

Thursday 16th February 2012
quotequote all
stain said:
E38Ross said:
just out of question - why use a W12 when it is (in theory) inherently less smooth than a V12?

is it purely packaging and development costs?
Yes it is a very compact engine
Seems daft to me, it's not as if Bentleys have small engine bays.

Dr G

15,220 posts

243 months

Thursday 16th February 2012
quotequote all
Why would you want to lug a bigger (and heavier) one?

gmh23

252 posts

181 months

Thursday 16th February 2012
quotequote all
Feel like I shouldn't want one, but I do, with a W12 in it.

XitUp

7,690 posts

205 months

Thursday 16th February 2012
quotequote all
Dr G said:
Why would you want to lug a bigger (and heavier) one?
1. Why would it be heavier by being a V12, or a large capacity V8. The latter would probably be smaller and lighter in fact.
2. What % of these cars weight is the engine?

stain

1,051 posts

211 months

Thursday 16th February 2012
quotequote all
XitUp said:
stain said:
E38Ross said:
just out of question - why use a W12 when it is (in theory) inherently less smooth than a V12?

is it purely packaging and development costs?
Yes it is a very compact engine
Seems daft to me, it's not as if Bentleys have small engine bays.
The GT bay is actually quite small. The short engine block does free up space inside the cabin as the engine sits quite far forwards. Don't forget they have a 4wd system stuffed in there too.