McLaren has overcome Renault F1 engine packaging headaches

McLaren technical director Tim Goss is confident his team has successfully overcome packaging headaches caused by Renault's engine architecture without having to compromise its 2018 Formula 1 chassis design

McLaren has overcome Renault F1 engine packaging headaches

Although switching from Honda to customer Renaults should provide a power boost for McLaren, Goss revealed that the different packaging of the turbo and energy recovery systems required major work to accomodate.

"The Renault architecture is very different," Goss told Autosport.

"You have two fundamental engine architectures out there. You have the Mercedes/Honda approach, and you have got the Ferrari/Renault approach.

"Essentially the difference comes down to where the turbocharger sits.

"The Mercedes/Honda approach is you have the compressor on the front of the engine, the turbine on the back of the engine and the MGU-H sat in the middle of the V.

"The Ferrari/Renault approach is that you have got the compressor sat at the back of the engine, the MGU-H behind it and the turbine behind that.

"They require a very different approach to your chassis and your gearbox, and now we have had recent experience of both we can see there are pros and cons of both.

"There are things I love about the Renault approach and there are things that frustrate me a little bit, but in the end we were fortunate that the decision to move from one engine to another was made just in time.

"It couldn't have been made any later."

Packaging the Renault has had an impact on McLaren's fuel tank, gearbox and rear suspension.

"We had to reconfigure the chassis, change the cooling system and reconfigure the gearbox to make it fit," Goss said.

"But we've managed that in time without any significant compromise to the chassis. It was quite a big change.

"The Renault engine will sit further forward in the chassis. With the Honda you had the air intake that had to come down into the front of the engine, and that volume came out of your fuel cell. So as a result, the chassis was longer.

"But then what you hadn't got was a turbocharger sat off the back of the engine, which then gets in the way of your inboard suspension.

"So you ended up with a much easier task at the back of the engine.

"When you move to a Renault, suddenly the front of the engine becomes a lot simpler and as the result we win back a substantial amount of fuel volume.

"You can push the engine forwards and the aerodynamic blockage of the engine and exhaust is considerably better, because that has moved forwards behind the chassis.

"But then you have a turbocharger that is sat in the bellhousing and to accommodate that you have to redesign your rear suspension internals and lengthen the gearbox.

"But we've done a fantastic job. A really fantastic job.

"It was very, very intense. We had two weeks of very intense effort to get it sorted, but we knew pretty much what we needed to do."

shares
comments
Dan Gurney's top 10 greatest races
Previous article

Dan Gurney's top 10 greatest races

Next article

Nigel Mansell: Williams can overcome driver line-up's inexperience

Nigel Mansell: Williams can overcome driver line-up's inexperience
Load comments
Why newly-retired Raikkonen won't miss F1 Plus

Why newly-retired Raikkonen won't miss F1

After 349 grand prix starts, 46 fastest laps, 21 wins and one world championship, Kimi Raikkonen has finally called time on his F1 career. In an exclusive interview with Autosport on the eve of his final race, he explains his loathing of paddock politics and reflects on how motorsport has changed over the past two decades

Unpacking the technical changes behind F1 2022's rules shakeup Plus

Unpacking the technical changes behind F1 2022's rules shakeup

Formula 1 cars will look very different this year as the long-awaited fresh rules finally arrive with the stated aim of improving its quality of racing. Autosport breaks down what the return of 'ground effect' aerodynamics - and a flurry of other changes besides - means for the teams, and what fans can expect

Formula 1
Jan 21, 2022
Why new era F1 is still dogged by its old world problems Plus

Why new era F1 is still dogged by its old world problems

OPINION: The 2022 Formula 1 season is just weeks away from getting underway. But instead of focusing on what is to come, the attention still remains on what has been – not least the Abu Dhabi title decider controversy. That, plus other key talking points, must be resolved to allow the series to warmly welcome in its new era

Formula 1
Jan 20, 2022
The Schumacher trait that will give Haas hope in F1 2022 Plus

The Schumacher trait that will give Haas hope in F1 2022

Mick Schumacher’s knack of improving during his second season in a championship was a trademark of his junior formula career, so his progress during his rookie Formula 1 campaign with Haas was encouraging. His target now will be to turn that improvement into results as the team hopes to reap the rewards of sacrificing development in 2021

Formula 1
Jan 19, 2022
The “glorified taxi” driver central to F1’s continued safety push Plus

The “glorified taxi” driver central to F1’s continued safety push

As the driver of Formula 1’s medical car, Alan van der Merwe’s job is to wait – and hope his skills aren’t needed. JAMES NEWBOLD hears from F1’s lesser-known stalwarts

Formula 1
Jan 15, 2022
When BMW added F1 'rocket fuel' to ignite Brabham's 1983 title push Plus

When BMW added F1 'rocket fuel' to ignite Brabham's 1983 title push

There was an ace up the sleeve during the 1983 F1 title-winning season of Nelson Piquet and Brabham. It made a frontrunning car invincible for the last three races to see off Renault's Alain Prost and secure the combination's second world title in three years

Formula 1
Jan 13, 2022
How “abysmal” reliability blunted Brabham’s first winner Plus

How “abysmal” reliability blunted Brabham’s first winner

Brabham’s first world championship race-winning car was held back by unreliable Climax engines – or so its creators believed, as STUART CODLING explains

Formula 1
Jan 10, 2022
The steps Norris took to reach a new level in F1 2021 Plus

The steps Norris took to reach a new level in F1 2021

Lando Norris came of age as a grand prix driver in 2021. McLaren’s young ace is no longer an apprentice or a quietly capable number two – he’s proved himself a potential winner in the top flight and, as STUART CODLING finds out, he’s ready to stake his claim to greatness…

Formula 1
Jan 9, 2022