Jun 26, 2013, 9:00 AM EDT
Renault were at the forefront of F1’s last turbo era, leading the way by introducing a 1.5-litre turbocharged engine in 1977 at a time when all the other teams were using normally-aspirated power units.
Within a few years F1 had tapped the enormous power of turbocharged engines and Renault won a string of races, although they failed to clinch a championship.
Turbo power was outlawed at the end of 1988 but will return to F1 next year. Renault’s director of testing and development Jean-Pierre Menrath, who worked on the original Renault turbos of 1977, explained how the technology has moved on since then:
“The major difference, of course, and the major technological development on the new engine, is in the electronics,” he said. “We started developing a turbocharged engine with distributors and igniters, which are no longer in use today. The fuel injection system had no electronics.”
“And in terms of design, the modern simulation tools didn’t exist back then, nor did all the computer systems and software used to design the engines more effectively and track their performance more accurately.
“There was no telemetry, no data acquisition. For the record, the driver could alter the booster pressure. Our “telltale” was a dial with a needle that was stuck pointing up. So, at the end of the day, the level of monitoring was somewhat limited.
“Nowadays, engine technology is a lot more effective. We’re very close to the complex systems used in aerospace.”
Towards the end of the development of the old turbo engines Renault saw some astronomical power outputs: “We went from 520/530bhp in 1979 to over 1,000bhp in the space of five years!”
“At the end of 1986, we even had a test engine that was capable of developing up to 1,200bhp thanks to the use of new turbochargers, with a new design. At the outset, they were intended to be used at altitude and in the end, at sea level, they produced exceptional performances. Unfortunately, the engine only lasted three laps!”
Renault anticipate next year’s engine, dubbed F1 Energy, will produce around 600bhp with a further 160bhp coming from the electrical energy recovery systems.
Sep 22, 2014, 5:30 PM EDT
A wild doubleheader in Los Angeles has left Block with an 18-point edge over Wiman as the series heads for Seattle.
Sep 22, 2014, 4:15 PM EDT
Coming up today: Highlights and analysis from Joey Logano’s Chase win at Loudon; an interview with Penske president Tim Cindric; Kevin Harvick’s Chase progress; Denny Hamlin’s nightmarish day; 16-year-old Cole Custer’s historic Truck win.
Sep 22, 2014, 3:55 PM EDT
The former CART and F1 driver’s incredible story is spotlighted in a special clip that previews a new film regarding BMW’s legacy in touring car racing.
Sep 22, 2014, 3:30 PM EDT
Wally Dallenbach Jr. to make competitive return to driving in Trans-Am, starting next month.
Sep 22, 2014, 3:00 PM EDT
Eric Boullier indicates that he feels Red Bull breached the FIA’s new radio ban with its messages to Daniel Ricciardo during Sunday’s race.
Sep 22, 2014, 2:30 PM EDT
Mark Webber enjoys his return to Austin in FIA WEC, even if the result in his No. 20 Porsche goes begging.
Sep 22, 2014, 1:30 PM EDT
The clash of the titans has gone Team Penske’s way so far. But next weekend’s race at Dover could see the tide turn in favor of Hendrick Motorsports.
Sep 22, 2014, 1:00 PM EDT
Andre Lotterer reflects on the openness of FIA WEC and Super Formula compared to his one-off Grand Prix appearance in Belgium.
Sep 22, 2014, 12:00 PM EDT
The FIA WEC headed to Texas this weekend. Here are some thoughts on how it went down.
Sep 22, 2014, 11:15 AM EDT
Both the TUDOR Championship and Continental Tire SportsCar Challenge put on a show in Austin this weekend.
Sep 22, 2014, 10:21 AM EDT
Audi 1-2 leads FIA WEC winners at COTA.
Sep 22, 2014, 10:00 AM EDT
Reliability woes have left Nico Rosberg reeling. If he doesn’t respond at Suzuka, it could be game over.
Sep 22, 2014, 9:00 AM EDT
German driver does well to keep his anger in check in his post-race video blog.
Sep 22, 2014, 8:00 AM EDT
Vijay Mallya delighted as Force India makes 2014 its most successful season since entering F1 back in 2008.
Sep 22, 2014, 7:00 AM EDT
Lewis Hamilton has put himself back in control of the 2014 F1 world championship after a great win in Singapore as teammate Nico Rosberg retired.
Sep 21, 2014, 8:43 PM EDT
Millen scores his second win of 2014, while YouTube icon Block takes an 18-point lead in the championship with two races left in the season.
Sep 21, 2014, 7:51 PM EDT
Tony Schumacher (Top Fuel), Courtney Force (Funny Car), Dave Connolly (Pro Stock) and Andrew Hines (Pro Stock Motorcycle) were the winners in Sunday’s final rounds of the NHRA FallNationals in Ennis, Texas.
Sep 21, 2014, 7:00 PM EDT
The talented rookie continues to duel with the Chasers at New Hampshire before finishing second to Joey Logano.
Sep 21, 2014, 6:36 PM EDT
As the Chase for the Sprint Cup moves to Dover for next Sunday’s third race of the playoffs, nine drivers will be fighting elimination by vying for five advancement spots there.
Sep 21, 2014, 6:09 PM EDT
Brad Keselowski started from the pole, led the second-most number of laps in the race (78), overcame a late wreck and still almost won Sunday’s Sylvania 300 at New Hampshire Motor Speedway.
Video from NASCAR America
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- Hamilton rules in Singapore to re-take championship lead as Rosberg retires 1
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