Jun 26, 2013, 9:00 AM EST
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.
Mar 1, 2015, 5:00 PM EST
Here’s the final recap from the Circuit de Barcelona-Catalunya as pre-season testing comes to a close.
Mar 1, 2015, 3:30 PM EST
Team principal Maurizio Arrivabene calls for “concentration and discipline” at Maranello in the lead-up to the start of the 2015 season.
Mar 1, 2015, 3:00 PM EST
The Team Penske pilot turns 34 years old today.
Mar 1, 2015, 2:30 PM EST
Maldonado is still able to find the positives out of his final test run before the beginning of the 2015 season in Australia on March 15.
Mar 1, 2015, 2:00 PM EST
Should Mercedes drop the ball in 2015, Williams could be the team to pick up the pieces and snatch a race win.
Mar 1, 2015, 1:30 PM EST
17-year-old will become the youngest driver in the history of F1 to start a race in Australia.
James Courtney wins season-opening V8 Supercars feature in Adelaide; ex-NASCAR driver Marcos Ambrose 12th
Mar 1, 2015, 1:00 PM EST
Ambrose cracks Top 10 on feature grid, but fuel strategy hinders an otherwise decent run for him.
Mar 1, 2015, 12:45 PM EST
German driver posted the fastest time of winter testing in Barcelona on Friday.
Mar 1, 2015, 12:30 PM EST
With the ban on motorsport in Switzerland being lifted, the door has been opened to an ePrix in Geneva.
Mar 1, 2015, 12:00 PM EST
Attention now turns to the season-opening Australian Grand Prix in Melbourne on March 15.
Mar 1, 2015, 11:00 AM EST
Ferrari technical director says that the SF15-T is working as expected.
Mar 1, 2015, 10:00 AM EST
Maldonado confident Lotus has made a big improvement after miserable 2014.
Mar 1, 2015, 8:00 AM EST
British driver says that sticking with #44 means far more to him than having the number designated for the world champion.
Feb 28, 2015, 5:00 PM EST
Argentinian driver confirms his plans for the new season after a difficult 2014 with Hilmer Motorsport.
Feb 28, 2015, 4:00 PM EST
A full round-up from the penultimate day of F1 pre-season testing in Barcelona.
Feb 28, 2015, 3:30 PM EST
Frenchman joined the team as a test driver for the 2015 season.
Feb 28, 2015, 3:11 PM EST
Bourdais, Hawksworth, Aldo Andretti and more all have birthdays today, February 28.
Feb 28, 2015, 3:00 PM EST
Despite posting a time that, when adjusted to account for tire compounds, could be 1.4 seconds quicker than the rest of the field, the Briton was unenthused about his performance.
Feb 28, 2015, 2:30 PM EST
How well does Josef Newgarden dunk? Find out in video he does with Indiana Pacers “Power Pack.”
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