Supplier Spotlight

Video Exclusives

Mercedes-Benz unveils its revamped G-Class

gtr

The all-new G-Class makes its public debut at the Detroit auto show in G550 form. Completely redeveloped and fitted with a 4.0-liter V8 biturbo gasoline engine offering 427ps and 450 lb-ft of torque at 2,000rpm to 4,750rpm, despite near-identical looks to its predecessor plenty has changed for the Mercedes-Benz SUV.


Ford’s F150 pickup gets its first diesel motor

gtr

Developed by the powertrain team behind the 6.7-liter Power Stroke engine for super duty trucks, the all-new 3.0-liter V6 Power Stroke unit promises 250ps, 440 lb-ft of torque, and an anticipated 5175kg of towing capacity.


Click here/on image to watch video

In light of Fisker's solid-state battery breakthrough and claims of a one minute charge time, will this electric vehicle technology development kick-start mass BEV uptake? 

News

New Bentley Mulsanne Speed to get re-engineered V8 developing 537ps and 1,100 Nm torque

Bentley has announced details of its new flagship model, the Mulsanne Speed, which will develop 537ps and 1,100 Nm. The re-engineered powertrain, featuring Bentley’s mighty 6¾-liter twin-turbo V8, propels the Mulsanne Speed from 0-100km/h in 4.9 seconds, and on to a top speed of 305 km/h. In modern Bentley tradition, the extra performance is matched by improved efficiency; a 13% gain means a range extended by 80 km.

“The new Mulsanne Speed is the car that defines Bentley as a flagship for driving luxury performance,” says Wolfgang Dürheimer, chairman and chief executive of Bentley Motors. “Our customers don’t compromise, and we’ve adopted the same approach in the design, engineering and crafting of our new flagship. The Mulsanne Speed is distinguished, calm and relaxing, but always with a connection to the road and relentless dynamic performance on demand. In this car, every journey becomes a drive.”

At the heart of the Mulsanne Speed is Bentley’s iconic 6¾-liter twin-turbo V8 engine, which has been re-engineered for the Mulsanne Speed as well as the signature Mulsanne. A totally redesigned combustion system (including combustion chamber, inlet ports, fuel injectors, spark plugs, and compression ratio) promotes a faster and more controlled combustion process. Through combining these advances with new variable valve timing and optimized turbocharger control, torque output of the engine has been pushed to record levels – 1,100 Nm from 1,750rpm.

The swell of torque from low engine speeds builds to a new peak power output of 537ps, enough to drive the Mulsanne Speed to a top speed of 305 km/h – a figure that Bentley claims is unrivalled figure in the ultra-luxury sector. The 0-100km/h sprint is covered in 4.9 seconds.

The new engine is paired with a recalibrated gearbox designed to enhance the driving experience of the Mulsanne Speed. The gear strategy is optimized for the new, higher wave of torque, and is designed for instant torque delivery on throttle application. The connection between the car and driver has been the focus, and extensive validation with both keen drivers and professional chauffeurs has proven the new setup. A new “S” mode gives the driver even more control, and maintains the engine speed above 2,000 rpm so that the turbochargers are always ready to deliver instantaneous performance.

An extensive recalibration of the engine management system has yielded benefits beyond increased torque and power. The cylinder deactivation system, that runs the engine as a V4 during light load, has been retuned for smoother transitions between V8 and V4 for even greater refinement. This work combines with a new gearbox control strategy and the engine hardware improvements to give a new level of efficiency for the Mulsanne engine.

Meeting the new EU6 emissions legislation, and designed to also meet the upcoming US LEV III standards in the future, the new powertrain records 342g/km of CO2 on the NEDC drive cycle – a 13% improvement on the current Mulsanne. The ensuing fuel economy improvements have extended the fuel range of the new Mulsanne Speed by 80 km.

The Mulsanne Speed will be unveiled at the Paris Motor Show on Thursday 2nd October, and will be available for customer delivery this winter.

In addition, the signature Mulsanne ultra-luxury sedan has been updated for 2015, to complement the launch of the performance-focused Mulsanne Speed. The Mulsanne receives the same efficiency upgrade through new engine hardware, with its 512ps, 1,020 Nm, 6¾-litre twin‑turbo V8 engine also now 13% more efficient. Changes have also been made to the gearbox calibration of the Mulsanne, focusing on smoother, relaxed gear changes that promote a comfortable and refined driving experience.

24 September 2014


RECEIVE THE
LATEST NEWS


Your email address:





Read Latest Issue
International Engine of the Year Awards
Read Latest Issue

Web Exclusive Articles

Hyundai 2019 Veloster N: The Knowledge
Designed specifically for the US market and officially unveiled at the 2018 Detroit auto show this month, Hyundai’s 2.0-liter turbocharged Veloster N has been developed to deliver driveability rather than outright performance statistics.
Read Now

Renault Trucks reveals how mixed reality can improve engine quality control
Renault Trucks, in collaboration with Immersion, is evaluating the potential of mixed reality to deliver a new, faster and more reliable quality control process at its Lyon engine manufacturing site.
Read Now

BAIC Motor on the industry’s fuel economy performance ambitions
BAIC has teamed up with Siemens to implement vehicle energy management and model-based systems engineering as the Chinese OEM works towards optimal fuel efficiency
Read Now

Read Latest Issue

Supplier Spotlight

Supplier SpotlightClick here for listings and information on leading suppliers covering all aspects of the engine technology industry. Want to see your company included? Contact aboobaker.tayub@ukimediaevents.com for more details.

Submit your industry opinion

Industry BlogDo you have an opinion you'd like to share with the engine technology community? We'd like to hear your views and opinions on the leading issues shaping the industry. Share your comments by sending up to 500 words to d.slavnich@ukimediaevents.com

Submit Your Recruitment Ad

Recruitment AdTo send us your recruitment advertising or to receive information on placing a banner please email aboobaker.tayub@ukimediaevents.com