Purpose

I will try my best to provide detailed info on various cars and what is like to live with them, I have already produced a few for Jaguar-car-forums, I will do my best to be unbiased, but it will be hard for some cars. I will re-produce press releases and copy from other motoring news.
Showing posts with label Drag Reduction System. Show all posts
Showing posts with label Drag Reduction System. Show all posts

Monday, 23 February 2015

McLaren P1™ GTR to show it's Limited Production form in Geneva.

  • Makes the transition from concept to production with track tested modifications
  • Tuning in development results in 10 percent more downforce than the McLaren P1™ road car
  • Lightweight components and motorsport technologies trim a further 50kg
  • McLaren P1™ GTR Driver Programme confirms first locations
  • Geneva Show car livery inspired by iconic McLaren F1 GTR, chassis #06R
  • McLaren P1™ GTR will premiere alongside the recently announced McLaren 675LT on Stand 1240, Hall 1 at 12.15 CET (11.15 GMT) on Tuesday, 3 March
The track-dedicated 1000PS McLaren P1™ GTR will debut at the 85th International Geneva Motor Show in limited production form with only minor modifications to the Design Concept presented just six months ago. The most noticeable change is the livery that the Geneva show car will be sporting.  

It is one which will be available to the fortunate few who will be joining the McLaren P1™ GTR Driver Programme that kicks off at the Circuit de Catalunya in Spain later this year. The design is homage to the yellow and green McLaren F1 GTR, chassis #06R, which has claimed its own place in history as one of the five F1 GTRs that dominated the 24 Hours of Le Mans in the historic debut by McLaren 20 years ago. 

From design concept to the track

The McLaren P1™ GTR has completed an extensive and intense testing schedule across the world following the unveil of the Design Concept at the Pebble Beach Concours d’Elegance last summer. This has produced enhancements to the original design to optimise aerodynamic performance and cooling.


The front track is 80mm wider than the road-going McLaren P1™ and with its aggressively profiled front splitter, the also car sits 50mm lower to the ground on centre-locking 19-inch motorsport alloy wheels shod with Pirelli slick tyres. The lower bodywork is trimmed with a sleek aerodynamic blade as previewed on the design concept, which cleans the flow of air along the car’s flanks.

The lightweight windscreen from the McLaren P1™ road car, measuring just 3.2mm thick, has been retained, while the side windows are now motorsport-specification polycarbonate with a sliding ‘ticket window’ on the driver’s side. The chemically toughened glass panels in the roof have been replaced with carbon fibre panels to give the cabin a more enclosed, cocooned environment, as has the engine bay cover. The weight saving measures on the McLaren P1™ GTR combine to strip out 50kg over the road-going model.

The rear of the track-only model is dominated, in contrast to the road-going McLaren P1™, by the presence of a fixed-height wing which sits more than 400mm above the sculpted rear bodywork – an increase of over 100mm of the adjustable wing on the road car.  Working in conjunction with the front-mounted aerodynamic flaps ahead of the front wheels, the rear wing helps to increase downforce levels by more than 10 percent – meaning up to 660kg at 150 mph. 

Mounted on light weight carbon fibre pylon supports, the wing retains the DRS (Drag Reduction System) of the road car, which trims the pitch from 32° to 0° at the push of the button on the steering wheel. Another bold and differentiating feature at the rear are the large twin exhaust pipes, formed from an Inconel and titanium alloy. This system saves in excess of 6.5kg over the already light road-going system.

Significant updates and modifications to the IPAS powertrain have been made beneath the ‘shrinkwrapped’ carbon fibre bodywork. At its heart, the McLaren P1™ GTR seamlessly integrates the 3.8-litre twin-turbo V8 petrol engine with an enhanced lightweight electric motor. 

Combined, these powerplants generate 1,000PS; 800PS (789bhp) is produced by the petrol engine, coupled to 200PS (197bhp) available immediately from the electric motor.  

The powertrain has been thoroughly revised for optimum performance on track, with key components replaced with motorsport-developed parts, more suited to the sustained high speed running the cars will be subjected to. In addition to this, features within the powertrain of the McLaren P1™ designed specifically for public highway use have been removed to reduce weight.

McLaren F1 GTR #06R: inspiring a new generation

McLaren F1 GTR chassis #06R was campaigned successfully throughout the 1995 and 1996 seasons with Mach One Racing, and is one of the longest serving examples of the McLaren F1 GTR in competition. The Harrods-sponsored #51 was famously one of seven McLaren F1 GTRs to compete at the 24 Hours of Le Mans in 1995, and was driven to the final podium position by multiple Le Mans race winner Derek Bell, his son Justin, and Andy Wallace. After this result, the team went on to win the final three races of the BPR Championship.

The following year, the team enjoyed another strong campaign. Oliver Grouillard joined Derek Bell and Andy Wallace in the line-up for the 24 Hours of Le Mans, and finished a commendable sixth. The team also claimed a win at Silverstone in the Global GT Endurance championship.

McLaren P1™ Driver Programme

The first locations for the first McLaren P1™ Driver Programme have now been confirmed, and will see drivers attend an initial test session at Silverstone, England, followed by the first on-track activity at Circuit de Catalunya in Spain. These events will follow on from individual driver profiling sessions at the McLaren Technology Centre. These tailored consultations will include a race seat fitting, a Human Performance Centre assessment, and final discussions around the design and livery of each model with McLaren Automotive Design Director Frank Stephenson.  

Each driver will also experience the McLaren P1™ GTR from the simulator for the first time.

Ultimate Series forms the third and final tier of the McLaren model line-up

The McLaren P1™ GTR joins the road-going McLaren P1™ in the Ultimate Series. This exclusive range prioritises aerodynamics and outright performance through notable advances in weight reduction, chassis and powertrain engineering and the use of pioneering materials.

McLaren has now established a three tier naming structure of Sports Series, Super Series and Ultimate Series.  The Sports Series is the entry point to McLaren and will make its global debut at the 2015 New York International Auto Show in April. Above this sits the core McLaren Super Series, comprising the 650S, the Asia-only 625C and the recently-announced 675LT which will premiere at the Geneva Motor Show.    

The McLaren P1™ GTR will make its global debut alongside the recently announced McLaren 675LT on Stand 1240, Hall 1 at 12.15 CET (11.15 GMT) on Tuesday, 3 March 2015 at the 85th International Geneva Motor Show.

Wednesday, 22 October 2014

McLaren showcases stripped out driver focused interior.

  • Stripped out driver-focused interior includes Formula 1™-inspired championship-winning MP4-23 steering wheel
  • Testing programme continues in the extreme temperatures of Bahrain to extract the optimum performance from each component, including the driver
  • Further details of the bespoke McLaren P1™ GTR driver programme confirmed:http://youtu.be/hSpKYDNkAsk
The McLaren P1™ GTR will offer an on- and off-track driving experience like no other, with unique access to the technologies and expertise within the McLaren Technology Centre, and the most powerful track-only model ever produced by McLaren Automotive. Dynamic testing is well underway at a range of international race circuits, and the first uncamouflged images show the latest aerodynamic and cooling updates being trialled. In addition, the driver-focused cockpit is shown to be even more purposeful than the road-going model, and has been designed with driver engagement and weight saving key priorities, but no compromise in terms of comfort and safety.
The individually-tailored McLaren P1™ GTR driver programme will offer each driver a unique insight into the world of McLaren. Details of the programme, which has previously been experienced by race winners and world champions, are explained on the official McLaren Automotive YouTube channel: http://youtu.be/hSpKYDNkAsk.

The view from the inside
The first images of the interior show how the driving environment of the McLaren P1™ GTR has been designed to be as focused for the driver as possible, and is stripped of all but the essential items in a bid to keep weight to a minimum. The lightweight carbon fibre MonoCage chassis is carried over from the road car, and weighs just 90kg including the upper and lower structures (including roof), roof snorkel, engine air intake cavity, battery and power electronics housing. This, in common with the road car, meets FIA load requirements for rollover in GT racing category. Since the ‘rollcage’ is incorporated into the MonoCage, there is no reduction in headroom for the driver.
The centre piece of the driver’s environment is the newly developed steering wheel, which has been designed to make all controls as easily accessible and user-friendly as possible. As with various elements throughout the car, there is significant heritage linked to the steering wheel. Although unique to the McLaren P1™ GTR, the design is based on the steering wheel of the 2008 Formula 1™ championship-winning MP4-23.
As on a Formula 1™ car, key controls including the mode switches are located to the centre of the bespoke steering wheel. This allows the driver to fully adjust the setup and characteristics of the car without having to take their hands from the wheel. The DRS and IPAS buttons are retained on the steering wheel. In the design and implementation of this new set up, all controls can be comfortably operated, and are easily accessible, when in a full race suit, helmet and gloves.
The cabin is equipped with lightweight DTM-style seats and full six-point motorsport harnesses. This will be specifically set up for the individual driver, and mounted directly to the chassis, reducing weight by having no additional mounting brackets. The HANS-approved carbon fibre seat shell offers comfort and support, and has been ergonomically-designed along with the rest of the cabin controls. Despite the stripped out environment, the air-conditioning is retained to maintain comfort during the much more physical driving experience.
Testing continues
The dedicated test team of engineers, technicians and development drivers continues to progress the programme, and has recently completed a successful test in the extreme desert heat at the Bahrain International Circuit. The programme was designed to push the capabilities of the upgraded IPAS powertrain, ensure optimised balance and handling characteristics on the race-proven Pirelli slick tyres, and work through aerodynamic developments including the dramatic fixed-height rear wing which includes the Formula 1™-style Drag Reduction System (DRS).
The rigorous testing schedule was carried out with the latest development prototype, and is seen dynamically for the first time, finished in a combination of Carbon Black paintwork and bare carbon fibre bodywork.
All tests were completed with results meeting or, in many cases exceeding, the stringent targets set. The McLaren P1™ GTR development continues its rapid progress, with further mileage scheduled over the winter throughout Europe.
McLaren P1™ GTR Driver Programme
‘With the McLaren P1™ GTR driver programme, we have aimed to do something different, very much like the way we operate the rest of the business. We don’t follow the trends. Our road cars are different to ourcompetitors, so too will be our driving programme,’ Chris Goodwin, Chief Test Driver for McLaren Automotive.
The McLaren P1™ GTR will be like no other model ever produced by McLaren Automotive. It is therefore fitting that the McLaren P1™ GTR driver programme will be different to anything offered previously. Drivers will become a member of the world’s most exclusive McLaren ownership programme, and gain a unique insight into the steps McLaren drivers take after signing for the team. With access to the world within the McLaren Technology Centre, each driver will have an unparalleled, and completely unique, experience. As race winners and world champions have before them, each driver will embark on a bespoke driver programme designed to hone and optimise driving skills, and learn how to get the best of themselves and the car.
A dedicated track preparation programme, tailored to suit each individual driver, will start at the McLaren Technology Centre and drivers will have access to go behind previously off-limits areas. Paul Mackenzie, McLaren P1™ GTR Programme Director explains: ‘The programme is about enabling our drivers to get themost out of the McLaren P1™ GTR. Before they get out on track, each driver will join us at the MTC and have unprecedented access to the cutting edge facilities, including the racing simulator. This will enable drivers to build up a greater understanding of the car’s capabilities and true performance, as well as learning the braking and turn-in points before they arrive at the circuit. It also allows them to analyse and discuss their performance ahead of testing themselves in the real world situation, so they are fully prepared when they take to the track.
‘It is a programme that has been developed over the years for our Formula 1™ and our young drivers. It’s not just about fitness, but also about mental preparation, and looks at the full wellbeing of the driver, andprepares them mentally and physically for the activities they will experience on track.’
The events themselves will take place at some of the most iconic racing Formula 1™ circuits across the world, and drivers will take part in six events during the first year of the programme. At each event, drivers will have a dedicated race team responsible for running the car. This will include a personal driver coach and head engineer, who will work through telemetry and video analysis to hone skills, and optimise laptimes. This one-to-one tuition will be bespoke to each driver, and will be tailored to suit each driver’s invidiual skill set and driving ability.

Wednesday, 20 February 2013

McLaren P1™ has IPAS and DRS for optimum throttle response.


  • IPAS (Instant Power Assist System) and DRS (Drag Reduction System) offer instant boost of power and straight-line speed
  • 916PS (903 bhp) and 900Nm, with emissions of less than 200g/km
  • Substantially revised 3.8-litre twin-turbo V8 petrol engine coupled to low-weight, highly efficient electric motor ensures instant torque for optimised throttle response
  • Full E-mode offers in excess of 10km emission-free driving


The McLaren P1™ will have the combined force of two highly-efficient powerplants, offering the optimum mix of superb throttle response, day-to-day drivability and top speed. A mid-mounted 3.8-litre twin-turbo V8 petrol engine and a highly effective electric motor give a combined output of 916PS (903 bhp) and a maximum torque figure of 900Nm, ensuring instantaneous throttle response through the rev range, more akin to a naturally aspirated engine. Emissions of less than 200g/km on the combined cycle are reduced to zero in full electric drive mode, while the Formula 1-derived DRS and IPAS technologies offer an increase in straight-line speed and an instant boost of power.
The 3.8-litre twin-turbo V8 petrol engine in the McLaren P1™ is a new version of the familiar M838T unit, that has been significantly upgraded to optimise cooling and durability under the higher loads. The engine block has a unique casting to incorporate the electric motor. The petrol engine produces 737PS (727 bhp) at 7,500rpm, and 720Nm of torque from 4,000rpm. To optimise efficiency of the petrol engine, extensive testing and development work has always been carried out with McLaren Automotive technology partner Mobil 1 on lubrication and hydraulic fluids.

The lightweight electric motor, developed by the McLaren Electronics arm of the Group, produces 179PS (176 bhp), and is unique to the McLaren P1™. The motor produces maximum torque of 260Nm instantly from a standstill, greatly increasing the throttle response of the McLaren P1™, and peak combined torque of 900Nm is delivered from just 4,000 rpm. In addition to this, the McLaren-developed ‘boost’ system, IPAS, provides up to 179PS instantly. The instant response of the electric motor provides a sharper throttle response more associated with a normally aspirated engine, and the significantly enhanced air-charging system enables the McLaren P1™ to have more top-end power – the perfect combination for high performance.
The electric motor is mounted directly onto the engine, and all drive is channelled through the dual-clutch seven-speed gearbox to drive the rear wheels. Thus, the electric motor and 3.8-litre twin-turbo V8 petrol engine work seamlessly together, providing more than just added ultimate power and torque.
A further benefit is that the e-motor can provide faster upshifts. This is achieved through the application of instant negative torque at the point of shift, making the engine revs drop as quickly and efficiently as possible to the required engine speed for the upshift.

In addition to the obsessive weight-saving measures demonstrated throughout the McLaren P1™, so too is the optimisation of usable energy. When off-throttle the electric motor provides additional drag torque, recovering energy to the battery that would otherwise be lost to the brakes.
E-mode
The McLaren P1™can be driven in a variety of modes, powered by the engine and electric motor together, or solely by the electric motor. This ensures versatility and ease of transportation, allows use in low emission zones and residential driving is optimised with near-silent running.
Maximum power comes when using both powerplants together, but even in E-mode the performance is strong. E-mode is the most economical mode available with zero tailpipe emissions. In E-mode, the McLaren P1™ can travel more than 10km with electric-only power – enough for most city journeys. When the battery is empty, the petrol engine will automatically start to maintain drive and charge the battery.
IPAS and DRS optimise performance and throttle response
The power available via the petrol engine and electric motor is further enhanced on the McLaren P1™ through two steering wheel-mounted buttons which activate the DRS (Drag Reduction System) and IPAS (Instant Power Assist System).

The Drag Reduction System used on the McLaren P1™ is a technology similar to that employed on Formula 1 cars.  Speed is increased by reducing the amount of drag on the rear wing and, where the MP4-28 has a moveable flap on the rear wing, the McLaren P1™ has a wing that reduces in angle to lower drag by 23%. The system immediately deactivates when the button is released, or if the driver touches the brake pedal.
IPAS is designed to deliver power rapidly for high performance acceleration, and provides 179PS of instant additional power. In developing the IPAS technology for the McLaren P1™, power delivery was prioritised over energy storage. This is achieved through a groundbreaking, lightweight battery pack, which offers greater power density than any other automotive battery pack on sale today.
Battery
The high power density has been achieved through a combination of high power cells, low pack weight and an innovative cooling system. The battery weighs just 96kg, and is mounted onto the underbody of the high-strength Formula 1-grade carbon fibre MonoCage chassis, which seals the unit in the vehicle, thus avoiding the added weight of any unnecessary battery packaging.
Due to the amount of power being supplied by the battery, complex cooling is required to guarantee cell performance and reliability. The coolant flow is balanced so each cell is cooled to the same temperature across the entire pack.
In addition to the battery being charged via the engine, the McLaren P1™ is also equipped with a plug-in charger which can recharge the battery, from empty, in only two hours. The plug-in charger can be stored in the luggage compartment, although the customer may choose to store it off-board – in a garage or the pits – to save weight.
Further details of the McLaren P1™ will be released in the coming weeks, before the production-ready car makes its world debut at the Geneva Motor Show next month.