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.
Jun 30, 2015, 6:01 PM EDT
Feature on Manpower to Horsepower to air during Red Bull GRC show this Sunday on NBC.
Jun 30, 2015, 1:47 PM EDT
A selection of images from the 2015 Goodwood Festival of Speed.
Jun 30, 2015, 12:00 PM EDT
SH Rallycross’ HAUS livery for Red Bull GRC this weekend screams red, white and blue.
Jun 30, 2015, 10:52 AM EDT
Given how well they’ve run this year, it was really only a matter of time until Graham Rahal and Rahal Letterman Lanigan Racing won a race.
Jun 30, 2015, 10:30 AM EDT
Luca Filippi and Matthew Brabham set for oval tests this Wednesday at Iowa Speedway.
Jun 30, 2015, 9:45 AM EDT
This weekend’s miserable conditions at Watkins Glen offered a lot of young drivers a chance to shine.
Jun 29, 2015, 9:29 PM EDT
The 2015 season is the first time Roger Penske has captained four teams on the IndyCar circuit. And it appears it will be full steam ahead with four teams going forward.
Jun 29, 2015, 8:53 PM EDT
Comedian and former late-night talk show host Jay Leno has spent his career making millions laugh. But recently, the joke was on Leno, so to speak – but in a good way.
Jun 29, 2015, 8:24 PM EDT
If you’re a big fan of the Indianapolis 500 and Indianapolis Motor Speedway, put this on your bucket list for next year.
Jun 29, 2015, 7:18 PM EDT
With five races coming up in the next six weeks, Top Fuel driver Antron Brown knows how crucial this stretch of the NHRA Mello Yello Drag Racing season will be.
Jun 29, 2015, 5:47 PM EDT
Finishing 13th in her Dale Coyne Racing Honda, Pippa Mann enjoyed the best showing of her IndyCar career in Saturday’s MAVTV 500 at Auto Club Speedway.
Jun 29, 2015, 3:37 PM EDT
Jack Hawksworth enjoyed one of his better runs of 2015 in Saturday’s MAVTV 500 at Auto Club Speedway.
Jun 29, 2015, 2:20 PM EDT
Although it’s been two days since the MAV TV 500, a number of IndyCar drivers are not going to soon forget one of the wildest races the series has seen in a long time.
Jun 28, 2015, 6:00 PM EDT
Brazilian driver ends the Formula E season with his best finish of fourth.
Jun 28, 2015, 5:33 PM EDT
Westbrook and Valiante take their second win of the year at Watkins Glen.
Jun 28, 2015, 4:30 PM EDT
The IndyCar driver finished 11th and 12th in two races at the London ePrix this weekend.
Jun 28, 2015, 3:10 PM EDT
Graham Rahal back on Twitter on Sunday after win on Saturday.
Jun 28, 2015, 3:00 PM EDT
Brazilian driver remains upbeat despite losing out on the title to bitter rival Nelson Piquet Jr.
Jun 28, 2015, 2:00 PM EDT
Brazilian driver talks about his rise from the midfield to the title across the course of the inaugural Formula E season.
Jun 28, 2015, 1:36 PM EDT
Watch a replay of yesterday’s crazy MAVTV 500 from Auto Club Speedway in Fontana either online via NBC Sports Live Extra, or on NBCSN tonight.
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