2018 BMW M8 GTE twin turbo V8 prototype race car.
BMW AG Motorsport M4 DTM LASER MEASURMENT
NEW BMW AG Motorsport M8 GTE.
MICHELIN MOTORSPORT RACE TIRES
The American Le Mans Series concluded in October 2013 with three more titles and a 139th win for a Michelin-equipped car from the 147 races organised since 1999.
The Tudor United SportsCar Championship is organised by IMSA and covers four different classes: P (Daytona and LMP2 prototypes), PC (Prototype Challenge), GTLM (GT Le Mans) and GTD (GT Daytona).
Michelin only competes in the fiercely competitive GTLM class which features Corvette, Porsche, Ferrari, BMW and Viper. Corvette Racing runs two new C7.Rs, while Porsche North America is back in the USA with a pair of Porsche 911 RSRs. Ferrari is represented by Risi Competizione, BMW Team RLL has two Z4 GTEs and SRT Motorsports competes with a brace of Viper GTS-Rs.
Michelin provides its partners with latest-generation tyres which are identical to those seen in the FIA World Endurance Championship’s LMGTE Pro class, namely three types of slick (low-temperature medium compound, medium compound and hard compound, or a high-temperature medium in the case of Porsche), plus a single type of wet weather tyre, as dictated by the regulations.
The 2014 calendar includes 13 rounds, one of which is a 24-hour race (Daytona), plus 12- and 10-hour races at Sebring and Petit Le Mans. Certain rounds do not accept all four classes.
2014 TUSCC calendar
January 25-26: Daytona (24 hours) – all classes
March 15: Sebring (12 hours) – all classes
April 12: Long Beach (1 hour 40 minutes) – P and GTLM classes only
May 4: Laguna Seca (2 hours) – PC and GTD classes / P and GTLM classes
May 31: Detroit (1 hour 40 minutes) – P and GTD classes only
June 7: Kansas City (45 minutes) – PC class only
June 29: Watkins Glen (6 hours) – all classes
July 13: Bowmanville (2 hours 45 minutes) – P, GTLM and GTD classes only
July 25: Indianapolis (2 hours 45 minutes) – all classes
August 10: Road America (2 hours 45 minutes) – all classes
August 24: Alton (45 minutes) – PC class only
September 20: Austin (2 hours 45 minutes) – all classes
October 4: Road Atlanta (10 hours) – all classes
The all new BMW AG Motorsport F13 M6 GT3 customer race car to replace the now iconic BMW AG Motorsport E89 Z4 GT3 race car.
The BMW Motorsport F13 M6 GT3 is currently finishing development as seen below, this race car is powered by a modified version of the BMW S63B44 V8 twin turbo power plant.
Review of the BMW street engine S63B44 on the BMW engine dyno during its 400 hour endurance test benchmark producing 560HP highlights the race engine potential the engine promises to show after the factory BMW Motorsport racing modifications are installed in this years 2015 development and testing phase. The 560-hp response of the M6's 4.4-liter V-8 turbo street engine is nearly instantaneous. The optional Competition Package raises the bar further, producing 575-hp on the street car M6 and M5 currently available in 2015. Double-VANOS infinitely variable camshaft timing and High Precision Direct Injection play in concert with BMW patented Valvetronic individual intake valve control that eliminates the need for a less-efficient throttle plate. The result is another M characteristic: linear, instantaneous delivery of a massive 500 lb-ft of torque over a broad rpm range (6,000-7,000 rom), from idle to high revs. This results in 0-60 mph of just 4.1 seconds, or 4.0 seconds with the Competition Package on the amazing street legal cars.
BMW Works Team RLL Z4 GTE/GTLM is loaded with the latest and greatest race car parts from BMW AG Motorsport division.
Some race car parts have carried over from DTM for power improvements to this Z4.
Other subtle design queues can be found in the body design, rear wing, Intake manifold, fuel delivery and engine management system to name a few.
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Aerodynamics: Specification rear wing: mono-wing with laminated gurney. Inclination adjustable from 0 to 20°. Special diffusors, front and rear. Underfloor with 30 mm high skid block. Two permissible areas for flaps at the vehicle’s front end Base weight (incl. driver): 1,110 kg
Brakes: Hydraulic dual-circuit braking system, light alloy brake callipers, ventilated carbon fibre brake discs front and rear, brake force distribution continually variable by the driver
Chassis: Directly connected to the carbon fibre monocoque is a roll cage of high-strength steel; CFRP crash elements on the side, front and rear
Cubic capacity: Max. 4,000 cc Driveline: Rear-wheel drive, 4-plate CFRP clutch, sequential 6-speed sport gearbox, adjustable multi-plate limited-slip differential, constant-velocity tripod slip-joint shafts
Engine: V8 aspirated engine, 90 degree cylinder angle, four valves per cylinder, air restricted to 2 x 28 mm by regulations
Engine management: Bosch MS 5.1 Fuel tank capacity: 118 litres Length/width/height: Length: 4,650 mm (excluding rear wing) Width: 1,950 mm Height: 1,150 mm (measured from identical reference plane)
Output: Approx. 500 hp Steering: Servo-assisted rack and pinion steering
Suspension: Independent suspension front and rear, doublewishbone suspension, pushrod system with spring-damper unit, adjustable gas pressure dampers
Torque: Approx. 500 Nm
Track width: Max. 1,950 mm Wheelbase: 2,750 mm
Wheels/tyres: Hankook “Ventus”, front: 300/680 – 18, rear: 320/710 – 18, forged aluminium wheels, front: 12 x 18 inches, rear: 13 x 18 inches, two different rubber compounds: standard tyres and option tyres
The joint development of the DTM Technical Regulations was based on the following premises: safety, cost control, show and equality of opportunities. All of these criteria were fully met by these regulations in the first two years. All three manufacturers won races in each year. For the 2014 season the Technical Regulations largely remain the same. The drivers continue to rely on the specification safety structures that protect them in case of an accident. In addition to the six crash elements at the sides, front and rear, the combination of a specification monocoque and cage with an integrated safety tank provides even better protection. The seat – similar to Formula 1 cars – is installed in the carbon fibre monocoque that is connected to a roll-over cage made of highstrength steel. Other specification components are used in the DTM as well. These parts are limited to approximately 50 items which, in total, account for about five per cent of all assembly components. The room for development in the areas of aerodynamics, the suspension and the engine thus continues to be large enough for the manufacturers to come up with clearly unique characteristics. Minor changes have been made in the areas of the tyres, engines and vehicle weight. The option tyres by Hankook that were successfully introduced in the 2013 season continue to be exclusively used in the race. For the 2014 season, their use is limited to a maximum of 50 per cent of the race distance. Each manufacturer now only has two spare engines available for all of its vehicles instead of the previously permitted one spare engine per team. Each engine must be used at a minimum of four race weekends. Due to the introduction of performance weights, the application of which is governed by the Sporting Regulations, the weight of the vehicle for the first weekend of the season at Hockenheim was raised by ten kilograms to 1,120 kilograms including the driver.
The carbon fibre brakes, brake pads and brake callipers are supplied by the same manufacturer (AP) to all teams. Per vehicle three sets of brake discs for the front and rear wheels may be used during a season.
The Drag Reduction System (DRS) is a wing flap that allows a higher top speed to be achieved for a short time. This system has improved overtaking possibilities since the 2013 season.
All DTM vehicles use the same engine control unit from Bosch. Data transmission while the vehicle is running on track is prohibited.
In the DTM only V8 engines with a cylinder bank angle of 90 degrees, a maximum displacement of four litres and a maximum of four valves per cylinder are permitted. The intake system must be equipped with two air restrictors each having a maximum diameter of 28 mm. There are two spare engines per manufacturer; each engine must be used at a minimum of four events. A DTM engine delivers approximately 500 hp.
Only the fuel prescribed for the respective event (ARAL Ultimate 102) may be used.
In the DTM only a specification gearboxdifferential unit is permitted, which is used by all manufacturers.
In the cockpit the driver is surrounded by an innovative combination consisting of a standard monocoque and cage. In addition, each vehicle has crash structures on both sides and at the front and rear. The “HANS” (Head and Neck Support) system has been mandatory since 2002.
The tyres are exclusively supplied by the series’ partner Hankook. At the front, ‘Ventus’ 300/680 – 18 are used, the dimensions for the rear wheels are 320/710 – 18. Strictly for the race a set of softer option tyres is available. It has to be used once and may be used for a maximum of 50 per cent of the race distance. After qualifying the teams have to announce which of the two tyre types they will start the race with.
The total minimum weight of a DTM car including the driver, suit, helmet and ten-kilogram performance weights is 1,120 kilograms. The use of the performance weights is specified by the Sporting Regulations according to the results of the races. The performance weights consist of identical ballast blocks made of tungsten, each weighing 2.5 kilograms, and must be installed at a defined location in the underfloor, roughly on the level of the driver’s feet. The maximum additional weight versus the total minimum weight of 1,120 kilograms is ten kilograms and the maximum weight reduction amounts to ten kilograms as well.
The first turbo-fueled championship winning car in Formula One and highlights at the Oldtimer Grand Prix track side the Nürburgring (August 9th-11th, 2013) -- the Brabham BMW BT52 FORMULA 1.
The BMW BT 52 footage contains:
- engine assembly
- testing and driving by Nelson Piquet
- car presentation at Goodwood