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 4, 2015, 5:00 PM EDT
Gasly storms to pole ahead of Mitch Evans and Stoffel Vandoorne as American driver Alexander Rossi struggles to P10 on the grid.
Sep 4, 2015, 4:00 PM EDT
Ecclestone backs Vettel to win a fifth world championship during his time with Ferrari.
Sep 4, 2015, 2:00 PM EDT
After being the enemy for the Ferrari fans in the past at Monza, Vettel will now carry their hopes of a home win on his shoulders.
Sep 4, 2015, 1:00 PM EDT
Despite finishing well clear of the chasing pack on Friday in practice, Hamilton believes he can go faster still.
Sep 4, 2015, 12:00 PM EDT
Sebastian Vettel, Fernando Alonso and Jenson Button among those running with a sticker paying tribute to Wilson on their helmets at Monza.
Sep 4, 2015, 11:30 AM EDT
IndyCar’s season recap airs tonight at 11:30 p.m. ET on NBCSN.
Sep 4, 2015, 10:59 AM EDT
Will Buxton brings you the latest news, interviews and insight from the paddock ahead of this weekend’s Italian Grand Prix.
Sep 4, 2015, 10:26 AM EDT
F1 drivers react to idea of closed cockpits possibly being introduced down the road.
Sep 4, 2015, 10:11 AM EDT
Will Buxton and Jason Swales head to Silverstone to give you a behind-the-scenes look at the British Grand Prix in the latest episode of Off The Grid.
Sep 4, 2015, 9:58 AM EDT
First round of funeral details for Justin Wilson have been confirmed.
Sep 4, 2015, 9:31 AM EDT
Mercedes romps to another one-two finish in FP2 as the rest of the field is left trailing behind.
Sep 4, 2015, 8:45 AM EDT
Jota Sport confirms it will expand its LMP2 programme for 2016 to compete in the full WEC season.
Sep 4, 2015, 7:45 AM EDT
Lewis Hamilton will be hoping to double up in FP2 after topping first practice on Friday morning.
Sep 4, 2015, 5:31 AM EDT
Hamilton finishes half a second clear of Rosberg to top FP1 on Friday.
Sep 4, 2015, 3:45 AM EDT
The Italian GP weekend kicks off with FP1 at 4am ET on Friday.
Sep 3, 2015, 6:55 PM EDT
Here’s all the information you need to know about this weekend’s 61st annual Chevrolet Performance U.S. Nationals at Lucas Oil Raceway in suburban Indianapolis:
Sep 3, 2015, 6:54 PM EDT
The biggest and most important drag race of the season takes place this weekend with the 61st Chevrolet Performance U.S. Nationals at Lucas Oil Raceway in suburban Indianapolis.
Sep 3, 2015, 3:27 PM EDT
The GP3/16 breaks cover at Monza ahead of its introduction next year.
Sep 3, 2015, 2:39 PM EDT
Mercedes goes all-in ahead of this weekend’s Italian Grand Prix, fully upgrading the power units on both of its cars.
- F1 Paddock Pass: Italian Grand Prix (VIDEO) 0
- Off The Grid: Silverstone preview (premieres 9/5 at 9:30am ET on NBCSN) 0
- Hamilton quickest again in second Italian GP practice 1
- Hamilton leads Mercedes one-two in Italian GP FP1 1
- NHRA: All you need to know about the 61st U.S. Nationals 0
- NHRA: Year’s biggest race, the U.S. Nationals, ready to roll 4
- F1 2015’s silly season is proving to be a let down, but who could yet spice it up? 4