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.
Oct 25, 2014, 8:02 PM EDT
Motor City connections are plentiful between the three Ford drivers still standing in the Chase.
Oct 25, 2014, 6:00 PM EDT
The 4-Rings takes to Facebook to dismiss yet another revival of the rumors that it’s going Grand Prix racing in the near-future.
Oct 25, 2014, 4:30 PM EDT
Battle for Truck Series championship becomes three-horse race.
Oct 25, 2014, 4:04 PM EDT
Darrell “Bubba” Wallace Jr. won his first career NASCAR Camping World Truck Series race at Martinsville Speedway last October. He returned to the short bullring one year later to win there again in Saturday’s Kroger 200.
Oct 25, 2014, 2:28 PM EDT
Stenhouse and Allgaier will start mid-pack on Sunday at Martinsville.
Oct 25, 2014, 1:30 PM EDT
Says first five years in F1 are about surviving, but cannot see the project failing.
Oct 25, 2014, 1:04 PM EDT
Harvick turns in a 19.457-second lap around the Virginia half-mile to top “Happy Hour.”
Oct 25, 2014, 12:30 PM EDT
German driver looking forward to tackling the Circuit of The Americas in Austin next weekend.
Oct 25, 2014, 12:30 PM EDT
Despite fighting breast cancer for the third time, NASCAR fan Wendy Smith decided to spend $25 to help others even less fortunate. Her gratuity paid off in a big way, earning a brand new $65,000 Chevrolet Corvette.
Oct 25, 2014, 12:00 PM EDT
Patrick not afraid to tackle thorny topics yesterday at Martinsville.
Oct 25, 2014, 11:35 AM EDT
On a weekend that carries a lot of significance for honoring NASCAR Hall of Fame-elect inductee Wendell Scott, Darrell “Bubba” Wallace Jr. paid tribute in his own way to Scott, earning the pole for Saturday’s Kroger 200 Camping World Truck Series race.
Oct 25, 2014, 11:30 AM EDT
Former HRT driver casts his damning judgement on the current cost crisis in F1.
Oct 25, 2014, 10:30 AM EDT
The demise of both Caterham and Marussia has been on the cards for some time, yet Formula 1 has allowed it to happen.
Oct 25, 2014, 10:03 AM EDT
Despite chilly temperatures in the mid-40s in the 50-minute early-morning session, Jimmie Johnson led all drivers in the next-to-last Sprint Cup practice with a best lap of 98.023 mph, the only driver over the 98 mph mark.
Oct 25, 2014, 9:30 AM EDT
Over 400 people attend special event in celebration of Brabham’s life and legacy.
Oct 25, 2014, 8:30 AM EDT
Lotus driver has failed to score any points in 2014, but feels that next season will hold better things.
Oct 25, 2014, 7:00 AM EDT
Yet another record falls to the Spanish sensation in Malaysia.
Oct 25, 2014, 5:48 AM EDT
Bernie Ecclestone claims that there will be just 18 cars racing in Austin.
Oct 24, 2014, 11:50 PM EDT
In a surprisingly candid admission, six-time Sprint Cup champ Jimmie Johnson says that while nothing is imminent, the day is coming when he and crew chief Chad Knaus will go their separate ways.
Oct 24, 2014, 11:32 PM EDT
In a bemusing video released Thursday, NASCAR star Kevin Harvick spent one of his recent off nights working the room at an Outback Steakhouse.
Video from NASCAR America
- Bubba Wallace pays homage to NASCAR Hall of Famer Wendell Scott with encore win at Martinsville 1
- Marussia also set to miss United States GP 8
- Jimmie Johnson: ‘That day is out there’ when he’ll split with crew chief Chad Knaus 7
- Jeff Gordon would love to return to Saturday Night Live — and wants to bring Ricky Funck with him (video) 0
- 2-for-1: Jamie McMurray wins Martinsville pole, sets track record 0
- Caterham given dispensation to miss Austin and Brazil 3
- Caterham the latest team to fall foul of the Leafield ‘curse’ 1