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2019 Audi RS 5 DTM And New Audi Turbo Engine For The DTM

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2019 Audi RS 5 DTM And New Audi Turbo Engine For The DTM. New Audi Turbo Engine For The DTM 2019 and Audi RS 5 DTM Drive. Subscribe.

2019 Audi RS 5 DTM Technical data:

Vehicle type: Class 1 race car
Chassis: CFRP monocoque with integrated fuel cell, combined with tubular steel frame, lateral CFRP crash elements, front and rear CFRP crash elements
Engine: Inline-four spark ignition engine with gasoline direct injection (TFSI), fourvalve technology, double-overhead camshaft, efficiency combustion process, exhaust turbocharger with intercooler limited to 3.5 bar absolute
Engine management: Bosch MS 7.4
Fuel system: Central high-pressure injection, rail pressure 350 bar, fuel flow limited by regulations to 95 kg/h (Push-to-pass: 100 kg/h)
Engine lubrication: Dry sump, Castrol EDGE
Cubic capacity: 2,000 cc
Power output: More than 610 hp (450 kW)
Approx. 30 hp boost due to push-to-pass function
Torque: More than 650 Nm
Engine weight: 85 kg
Fuel: ARAL Ultimate 102
Mileage per season: Approx. 6,000 km
Power management: Bosch PBX 190
Display: Bosch DDU 10
Engine: Front longitudinal engine
Type of drive: Rear-wheel via drive shaft (transaxle)
Clutch: 4-plate CFRP clutch
Transmission: Semi-automatic 6-speed transmission with paddle shift
Differential: Adjustable plate-type limited slip differential
Drive shafts: Tripod-joint shafts
Steering: Servo-assisted rack and pinion steering
Suspension: Independent front and rear suspension, double wishbones, pushrod system with spring/damper unit, adjustable gas pressure dampers
Brakes: Hydraulic dual circuit brake system, light alloy monobloc brake calipers, ventilated front and rear carbon fiber brake discs, infinitely manually adjustable front and rear brake balance
Wheels: Forged aluminum wheels, front: 12 x 18 inches; rear: 13 x 18 inches
Tires: Hankook, front: 300-680-18; rear: 320-710-18
Length: 4,958 mm (incl. rear wing)
Width: 1,950 mm
Height: 1,150 mm
Minimum weight: 981 kg (excluding driver)
Fuel cell capacity: 120 l
0–100 km/h: Approx. 2.8 seconds
Top speed: Approx. 300 km/h

The beginning of a new era in the DTM: Starting in the 2019 season, the Class 1 race cars of the popular touring car racing series will use modern and highly efficient turbo engines. The two-liter four-cylinder power-plant of the Audi RS 5 DTM delivers more than 610 horsepower. By means of the “push-to-pass” function, the drivers can even access a short-term 30-hp power boost.

Following about two and a half years of development and some 1,000 hours of dynamometer testing, the new Audi race engine is ready for its first racing deployment on May 4 at the Hockenheimring. “Our drivers were totally thrilled right in the first test,” says Head of Audi Motorsport Dieter Gass. “However, the move from the naturally aspirated V8 to the turbo engine is not only important due to the additional output of some 100 horsepower. In the DTM, we’re now driving with a high-efficiency engine of the type we’re also using in many production vehicles of the Group.”

The new Class 1 Regulations of the DTM are geared to utmost efficiency. Just like in production, the challenge is to extract the maximum from the available fuel through high compression and very good efficiency. In the DTM, the amount of fuel is limited to 95 kilograms per hour. “That may sound like a lot but, in view of more than 610 horsepower, it really isn’t,” says Ulrich Baretzky, Head of Engine Development at Audi Motorsport. “The specific consumption of the DTM engine is extremely low and now within ranges that used to be typical for diesel engines. In terms of weight and lightweight design – especially in the context of avoiding CO2 emissions – we’re pointing out a few approaches that will hopefully find their way into future road-going vehicles – like in the case of the first TFSI for Le Mans and the TDI.”

The compact four-cylinder turbo engine with gasoline direct injection (TFSI) only weighs 85 kilograms and thus only half as much as the naturally aspirated V8 engine that was previously used in the DTM. As a result, the dry weight of the Audi RS 5 DTM has dropped to less than 1,000 kilograms. The power-to-weight ratio is now about 1.6 kilograms per horsepower.

Like in the past, a DTM engine has to last for a full season, so it is designed to run for some 6,000 kilometers. “The format of the DTM is a great challenge,” says Stefan Dreyer, Head of Powertrain Development at Audi Motorsport. “The long mileage, distributed to many events with short runs, is really tough. Plus, the four-cylinder engine’s vibration behavior totally differs from that of the V8. That posed a huge challenge during the development of the engine and also to our dynamometers.” Additional output of more than 100 horsepower, as well as higher torque, put a greater load on the entire powertrain.

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