It is official. Porsche’s 919 Evo with Timo Bernhard behind the wheel clocked an unbelievable 5:19.55 lap time on the Nürburgring on Friday, fully destroying the earlier all-time report of 6:11.13 set by Stefan Bellof in a Porsche 956 C again in 1983.
It means Porsche nonetheless holds each the all-time report for the 12.9-mile Nürburgring-Nordschleife in addition to the manufacturing automobile report, the latter achieved final September by Lars Kern in a 2018 911 GT2 RS.
The 919 Evo is neither a manufacturing automobile nor a race automobile. It’s merely a time-attack beast primarily based on the vastly profitable 919 Hybrid LMP1 prototype racer that competed the previous few years within the World Endurance Championship, having benefited from the removing of all limits imposed by way of racing rules.
— Porsche LMP1 Crew (@Porsche_Team) June 29, 2018
Hampered by the rules, the 919 Hybrid race automobile delivered efficiency just like rival LMP1-spec automobiles regardless of being conceptually very completely different, significantly when it got here to powertrain. As a consequence this by no means allowed the query: What can be the potential of the 919 Hybrid if unrestricted.
The 919 Evo has simply supplied the reply.
“Having developed, improved and raced the automobile for 4 years, the [919 Hybrid team] had a really shut relationship to it,” Stephen Mitas, Porsche’s chief race engineer for the LMP1 program, mentioned in an announcement. “All of us knew, irrespective of how profitable the 919 Hybrid was, it might by no means present its full talents. Really even the Evo model doesn’t absolutely exploit the technical potential. This time we weren’t restricted by rules however assets.”
So how does the 919 Evo differ from the race automobile? The powertrain, on this case a 2.Zero-liter turbocharged V-Four on the rear axle and an electrical motor on the entrance, stays the identical however is now free from gasoline move restrictions. Additionally outfitted with new engine administration software program, the V-Four alone develops 720 horsepower as an alternative of 500 in race-spec. The quantity of power from the automobile’s two restoration techniques (entrance brakes and exhaust) additionally runs at full potential now, permitting the engineers to dial up energy from the entrance electrical motor to 440 hp as an alternative of 400 in race-spec.
New aerodynamics have been applied, resulting in a slight visible distinction between the 2 variations. The brand new bigger entrance diffuser now balances the brand new and really giant rear wing, each of which have actively managed drag discount techniques. The hydraulically operated techniques trim the trailing fringe of the entrance diffuser and open up the slot between the rear wing foremost aircraft and the flap, respectively, so as enhance the aerodynamic effectivity.
Beneath, the turning vanes and flooring have been optimized with mounted top facet skirts to extend the aerodynamic efficiency. In whole the aero modifications end in 53 p.c extra downforce and a rise in aero effectivity by 66 p.c. The additional downforce, which is greater than in F1, required required Michelin to provide you with a brand new tire compound that might keep efficiency with no compromise on security.
Porsche 919 Hybrid LMP1 race automobile’s electrical power restoration and drive system
In comparison with the 919 Hybrid, the 919 Evo’s dry weight was decreased by 86 kilos to 1,872 kilos. To attain this, every part was eliminated that isn’t wanted for a single quick lap: air-conditioning, windscreen wiper, a number of sensors, digital units from race management, lights techniques and the pneumatic jack system. To assist additional increase the efficiency envelope, the 919 Evo gained a four-wheel brake-by-wire system to supply further yaw management.
And eventually, the facility steering was tailored for the upper hundreds and stronger suspension wishbones (entrance and rear) had been applied.
Constructed as a tribute to the vastly profitable race automobile, Porsche is utilizing the 919 Evo to farewell the 919 Hybrid with a sequence of report makes an attempt. Spa-Francorchamp’s report was the primary to fall, and now the ‘Ring report has fallen too.