Home Vídeos 2018 Audi RS 5 DTM Race Cars – on the Race Track

2018 Audi RS 5 DTM Race Cars – on the Race Track

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2018 Audi RS 5 DTM Race Cars – on the Race Track. 2018 Audi RS 5 DTM Race Cars. Subscribe.

The three Audi Sport Teams Abt Sportsline, Phoenix and Rosberg, used five race cars and one test car at Hockenheim.

Chassis: Carbon fiber monocoque with integrated fuel cell, front, rear and lateral CFRP crash elements
Engine: Normally aspirated V8 gasoline engine, 90-degree bank angle, 4 valves per cylinder, mandatory intake air restrictors – 2 x 29,0 mm
Engine management: Bosch MS 5.1
Engine lubrication: Dry sump
Cubic capacity: 4,000 cc
Power: More than 500 hp
Torque: More than 500 Nm
Type of drive: Rear-wheel drive
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 drive 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, electromagnetic start valve
Wheels: Forged aluminum wheels front: 12 x 18 inch; rear: 13 x 18 inch
Tires: Hankook, front: 300-680-18; rear: 320-710-18
Minimum weight: 1,115 kg (including driver)
Performance 0–100 km/h: approx. 2.8 seconds
Top speed: approx. 275 km/h

Audi contests the 2018 DTM season with the further developed championshipwinning car from last year. Major changes compared to 2017 have particularly been made to the Audi RS 5 DTM’s aerodynamics.

This year, following the abolishment of the performance weights, the drivers in the DTM are taking center stage to an even greater extent than before. Previously, in 2017, more powerful engines and softer tires made for more thrilling races. Now aerodynamic downforce of the DTM race cars with more than 500 horsepower has been reduced by about 25 percent compared to last year and the suspensions have been simplified. Per wheel, the regulations now permit only one spring/damper unit. The so-called “third element,” a connection between the two wheels of an axle, is no longer being used. The objective is to bring the field even closer together than before.

The scope for development has been reduced in major ways this year as areas of aerodynamics which used to be subject to discretionary design – such as the area around the wheel wells – are now specified for all DTM race cars. “Basically, all cars now have the same aerodynamics package,” says Andreas Roos, the new Project Leader DTM at Audi. “Subject to each manufacturer’s individual design are the transition areas between the aerodynamics components and the bodywork of the respective vehicle.” Intensive aerodynamics development as in the past no longer exists. The reduction of downforce has a major effect on the suspension setup and handling of the tires. Overall, there are fewer adjustment options for the suspension as well so that Audi has to change its previous philosophy.

The internal project name of the latest-generation Audi RS 5 DTM is RC7. Except for its new aerodynamics and simplified suspension it is largely identical in construction with the previous RC6 model that was first fielded in the 2017 season. Its four-liter V8 engine delivers more than 500 horsepower transmitted to the rear wheels. The semi-automatic six-speed transmission is operated via paddle shifters in the steering wheel.

Driver assistance systems such as ABS or traction control have traditionally been prohibited in the DTM. Overtaking is assisted by the Drag Reduction System (DRS) known from Formula 1. By pushing a button, the driver is able to flatten the angle of the rear wing, thereby gaining a short-term speed increase of up to 10 km/h, depending on the race track.

Tire partner Hankook has been supplying softer tires since last season. While allowing faster lap times to be achieved on the one hand they are deliberately designed to significantly degrade after a few laps on the other. Perfect tire management was one of Audi’s fortes in 2017 and will become even more important in 2018 due to the further reduction of downforce.

The DTM has been setting standards in terms of safety for many years. In the Audi RS 5 DTM, the drivers sit in a carbon fiber monocoque which is combined with a solid steel cage. CFRP crash elements on the sides, rear and front absorb energy in the event of a crash. The body of the Audi RS 5 DTM consists of carbon fiber.

DTM race cars are prototypes specifically developed for racing which are visually based on the production models – in the case of the RC7 on the current Audi RS 5 Coupé.

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