New F1 engines ‘approaching aerospace technology’ – Renault

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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.

IMSA: Sebring test notes

Photo courtesy of IMSA
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Ahead of next month’s Mobil 1 12 Hours of Sebring, teams from the IMSA WeatherTech SportsCar Championship took to Sebring International Raceway to round out a week of IMSA testing at the 3.74-mile road course.

Below are news highlights from Friday and Saturday at Sebring.

Derani Aiming for a Repeat of 2016 Victory

Tequila Patrón ESM’s Pipo Derani burst onto the American racing scene in 2016 with standout performances at the Rolex 24 and 12 Hours of Sebring to lead the ESM team to victory at both races.

His Sebring triumph was particularly impressive as he charged from fourth to first in the final ten minutes to secure the victory in one of the most thrilling finishes the race has ever seen.

Now two years removed from those successes, Derani appreciates the impact those 2016 triumphs had on his career.

“If you’re talking about sports car racing, you’re talking about Daytona, Sebring, Le Mans, Petit and those races that are known worldwide,” said the now 24-year-old Derani. “After winning Daytona and immediately coming here at Sebring – which if I’m not wrong, I was the first guy winning both on debut and the first Brazilian, probably to win back-to-back on those two races. It definitely changed my career. It opened many doors for myself and I’m really glad that it happened. Nothing comes easy. I’m really glad that ESM gave me the chance in 2016 to be in those races. Two years later, I can’t wait to win again.”

With testing now in the rearview mirror, Derani hopes he and the ESM team have found the right setup package to give them another chance at a victory.

“(Thursday) was a day that we managed to get a lot of information,” he explained. Most importantly, we ran a lot. We were out on track, and that is really good for us. Hopefully, this work is going to pay off really, really soon.”

United Autosports Continues American Odyssey at Sebring

Although two-time FIA Formula 1 world champion Fernando Alonso won’t be in the mix, United Autosports will be continuing the American adventure they started at January’s Rolex 24 with entries at the three other Tequila Patron North American Endurance Cup events in 2018, beginning with March’s 12 Hours of Sebring.

The No. 32 Ligier JS P217 Gibson will be the team’s entrant at the remaining NAEC events and they will look to build on a fourth-place finish at the Rolex. However, while fourth looks like a strong result, team co-owner Richard Dean felt a victory may have been within their reach.

“We were a little bit disappointed in the end, even though we finished fourth because I think with three hours to go we sat in third place and the two Cadillacs were looking like they were struggling, we felt like we had an opportunity that 24-hour races can give you,” said Dean. “But everybody’s got a story, so we came out of there with a fourth place.”

Drivers Phil Hanson and Paul Di Resta returned to the team to complete the Sebring test, while Alex Brundle filled in for an ill Bruno Senna, who is scheduled to race with the team at the 12-hour enduro.

Dean emphasized, though, that Senna’s previous experience around the track should make up for his absence.

“Bruno couldn’t travel, he wasn’t well enough, and there was just no point in him getting on a plane and being ill here,” Dean asserted. “He knows the track. Of the three drivers we’ve got, he’s the one who needed the least laps around here.

Dean added that the team is beginning to get a better foothold on American soil, citing help from Andretti Autosport, which should improve their prospects for the remaining NAEC rounds.

“We feel a little bit more organized, we’ve got our own truck now, and we’ve got a little base here, and (Andretti Autosport) have been helping us out an awful lot, so our little collaboration or alliance with Andretti has certainly steadied the ship a little bit for us and helped us,” Dean said. “We’re excited to do these remaining races, and now that we’ve got Daytona experience with us, it’s definitely going to help us do a much better job in the approach for Sebring, Watkins Glen and Petit.”

Lally Samples New Continental Tire Design

Continental Tire, the current tire supplier for the Prototype and GT Daytona classes in the Weathertech Championship, rolled out a new tire design for the Sebring test, and Magnus Racing’s Andy Lally was the first to sample it on Thursday.

“Basically, we’re all going through sweeps right now and feeling things out. What does the tire feel like when you’re in qualifying mode versus full-fuel mode?” Lally said after the initial running. “There are all sorts of stuff when you get such a change like what we’ve got here. This is a relatively big change for the GT cars. Maybe for the Prototypes, it’s not as big a change, but for the GT3 cars, it’s quite a different feel on the platform. We’re just going through that.”
The new tire design comes after a Rolex 24 that was plagued with tire problems, as several teams suffered failures, especially on the left-rear, during the 24-hour race. Wayne Taylor Racing even elected to retire their No. 10 Konica Minolta Cadillac DPi-V.R after suffering five tire failures.
Miller, Bechtolsheimer Sample New CJ Wilson Racing Acura NSX GT3
Marc Miller and Till Bechtolsheimer got to work quickly with new Weathertech entrant CJ Wilson Racing, with both drivers sampling their new Acura NSX GT3 on Thursday and Friday.
Miller is a veteran of GT3 machinery and has won big races before – he was a GTD class winner at the 2016 Motul Petit Le Mans. Bechtolsheimer, however, is all new to GT3 machinery, having primarily raced vintage cars along with forays into the Continental Tire SportsCar Challenge.
“I’ve not driven anything close to a GTD car before,” quipped Bechtolsheimer. “The first time driving it properly here at Sebring is kind of fitting because the first time I drove a car on slicks was at Sebring two years ago in moving to Continental Tire, which was at least as daunting at the time as moving into GTD now.
“The first time I turned a lap or two in the car, even though I was just trying to figure out where all the switches were and so on, I straight away felt that this is a car that’s going to be fun to drive. It’s going to take me time to build up to be on pace, but it’s a confidence-inspiring car and its yeah, it’s a lot nicer than perhaps I was expecting.”
The Mobil 1 12 Hours of Sebring rolls off on March 17.