The Renault Sport R.S. 01
The Renault Sport R.S. 01 is a radical expression of the brand’s sporting DNA. Its technical specifications reflect the best of Renault Sport expertise. With a carbon monocoque chassis for a weight of less than 1,100 kg and an engine developing over 500 hp, it is able to reach a top speed of over 300 kph. From 2015, Renault Sport R.S. 01 will be one of the stars of World Series by Renault in a new championship, the Renault Sport Trophy, a springboard for the professional GT and Endurance championships.
Design and aerodynamics of the Renault Sport R.S. 01
Like all the Renault vehicles designed under the management of Laurens van den Acker , Renault Sport R.S. 01 displays a prominent logo, the key feature on the front end. The vehicle’s width of 2,000 mm – for a height of 1,116 mm – is reinforced by the signature of the LED daytime-running lights positioned along the brake cooling scoops.
At the centre of the grille, the air is “sucked in” and channeled by the stem of the chassis towards the two water coolers. It is then expelled through the extractors positioned on the hood. The negative pressure thereby created increases downforce at the front of the car. The large blade of the lower splitter and the stepped flat bottom also contribute to aerodynamics at the front. The two fins on the side of the bumper generate vortices that limit the turbulence of the rotating wheels.
Looking beyond the adjustable fin, the rear diffuser “pushes” Renault Sport R.S. 01 to the track, extracting the air flow sweeping under the flat bottom. This system creates no drag and so does not penalize top speed. The diffuser is topped by a twin exhaust and LED lights, completing the original light signature that extends across the width of Renault Sport R.S. 01 almost in its entirety.
As a result of the efforts devoted to aerodynamics, Renault Sport R.S. 01 is able to achieve a level of performance beyond that of a GT3 and closer to that of a DTM. CI (lift coefficient) and CdA (drag coefficient) are similar to those of a Formula Renault 3.5. At the top speed of 300 kph, the downforce of 1.7 metric tons is equivalent to that of a Formula Renault 3.5.
Technical caracteristics of the R.S. 01
The technical characteristics of Renault Sport R.S. 01 are on a par with its design. The carbon monocoque chassis enables a vehicle weight of 1,100 kg. Installed in a central rear position, the Nismo V6 3.8L twin-turbo engine developing more than 500 hp is mated to a Sadev seven-speed sequential gearbox. With carbon brakes and special Michelin tires, Renault Sport R.S. 01 embodies the full technical expertise of Renault Sport Technologies.
The Nismo V6 engine
The semi-stressed engine is bolted to the carbon monocoque chassis on the distribution side, and to the roll cage at the top. Prepared by Nismo, the 3.8L V6 twin-turbo engine is derived from the Nissan GT-R. The main change in relation to the production model is the dry sump oil system intended to prevent oil surges during long corners. The Pectel electronic unit features a traction control function.
Turbo pressure is set to deliver over 500 hp with maximum torque of 600 N.m. This positions Renault Sport R.S. 01 between a GT3 and a DTM in terms of performance.
The seven-speed sequential gearbox
The Nismo engine is mated to a longitudinal seven-speed gearbox supplied by Sadev. With an eye to budget management, the same gear ratio sets will be used for all tracks. However, it will be possible to adjust the preload setting of the self-locking differential.
Activated by steering-wheel paddles, the sequential control system is managed by an XAP electromagnetic actuator. Developed specially by ZF Race Engineering, the clutch features an anti-stall function and is designed for an extended service life.
Suspensions, braking and tires of the Renault Sport R.S. 01
Grip is provided primarily by aerodynamic downforce and this is reflected in suspension design. In the same way as on sports prototypes, a conventional double wishbone layout has been adopted with pushrods and Öhlins dampers. Adjustable for compression and rebound, the systems are positioned on either side of the body at the front, and longitudinally above the gearbox at the rear.
The braking system combines 380 mm carbon discs from PFC Brakes with six-piston calipers. Renault Sport R.S. 01 is also fitted with Bosch Motorsport ABS. The partner of Renault Sport Technologies for all its motorsport products, Michelin has developed special 18-inch tires, mounted on wheels of original design with central nuts.
The R.S. 01 will compete in the Renault Sport Trophy championship
Renault Sport R.S. 01 will compete in the Renault Sport Trophy championship, an event built to measure. This one-design series, which will be part of the World Series by Renault from 2015, will be a new opportunity for “Pro-Am” teams, and a gateway to the GT, DTM, ELMS and WEC championships. Positioned between the Clio Cup events and professional championships, such as the WEC, DTM and Japanese Super GT, the Renault Sport Trophy is a gateway for the best pilots and for gentleman drivers.
The 2015 season will be open to twenty “Pro-Am” teams, classified according to the rules of the FIA World Endurance Championship (WEC). At World Series by Renault meetings, competitors will be able to maximize their time on the track by taking part in a real monotype championship called Renault Sport Trophy.
Track time is currently estimated at more than four hours per car and per driver, over a three-day weekend. Priority will be given to technical fairness, sporting ethics and cost control. The technical definition of Renault Sport R.S. 01 aims for servicing every other season, thus helping to keep running costs down.
Alongside the prize money for the best drivers and teams in each round, Renault Sport Technologies and its partners will be providing particularly attractive end-of-season rewards.
The champion in the “Pro” category will have the chance to follow a complete development program (simulator, physical preparation, media training, etc.) prior to taking a rookie test with the official Nismo team for the Super GT in Japan. If he has the qualities required, he will be able to pursue his career in this discipline.
A similarly attractive reward will be provided for the “Am” champion, who will have the chance to take part in the 2016 Le Mans 24-Hour event driving an LMP2 prototype.
Thecnical data of the Renault Sport R.S. 01
|Type||Dallara carbon monocoque chassis and steel roll cage|
|Safety||Monocoque chassis, roll cage and crashboxes compliant with FIA LMP1 2014 standards, collapsible steering column, Sabelt seat FIA 8862/2009 standard|
|Aerodynamic features||Front blade and splitter, stepped flat bottom, rear diffuser and rear wing|
|Type||Nismo V6 – 24 valves – 3,799 cm3|
|Layout||Longitudinal central rear|
|Feed||Injection – 2 turbochargers|
|Max power||> 500 hp|
|Max torque||> 600 N.m|
|Max engine speed||6,800 rpm|
|Electronic management||Pectel SQ6M with traction control|
|Data acquisition||Cosworth ICD Pro|
|Type||Rear wheel drive|
|Gearbox||7-speed Sequential Sadev + rear drive|
|Control||XAP semi-automatic with steering-wheel paddles|
|Clutch||ZF Race Engineering, long service life with anti-stall function|
|RUNNING GEAR AND SUSPENSION|
|Suspensions||Double wishbone + pushrods|
|Dampers||Öhlins 2-way adjustable|
|Brakes||PFC Brakes 380 mm carbon discs, 6-piston calipers, Bosch ABS system|
|Steering||Hydraulic power steering|
|Wheels||Braid wheels, central mounting|
|Tires||Michelin 30/68 R18 (front) and 31/71 R18 (rear)|
|DIMENSIONS, WEIGHT AND CAPACITIES|
|Front/rear track||1,675 / 1,624 mm|
|Fuel tank||150 liters|
|Weight||< 1,100 kg|