Giorgio Piola's F1 technical analysis
Topic

Giorgio Piola's F1 technical analysis

The new F1 brake duct tweaks that show Red Bull is still pushing

Red Bull’s development of its Formula 1 car has been nothing short of relentless this season, with new parts arriving at almost every race in the opening half of the campaign.

The new F1 brake duct tweaks that show Red Bull is still pushing
Listen to this article

Whilst it’s an impressive feat, given the significant regulation change that arrives next year, against the backdrop of the cost cap it also shows its commitment level in the battle for the championships.

Aside from new engine cover bodywork that will be looked at later on, Red Bull was also ringing the changes in terms of its front brake duct layout in Mexico.

Another new inlet scoop arrangement was tested on Friday (inset), featuring three vertical channels rather than the horizontally subdivided version that it has been using for a number of races now.

This is the fifth iteration of the inlet scoop this season, showing the dedication Red Bull has to optimising the inlet’s shape and the performance it can deliver.

Meanwhile, the panelling that makes up the bypass duct, which is carved into the front face of the assembly, had also been specifically tailored towards the expected demands of the Autodromo Hermanos Rodríguez.

Ordinarily, the team would either use a full or partial panel, both of which carry a heat reflective material on them (bottom), to carry the airflow out through the wheel face.

The panel acts as a barrier within the bypass duct for the heat rejected from the brake disc drillings within. This creates a form of temperature control, as the heat isn’t exchanged as willingly with the wheel rim and consequently the tyre.

This delicately balanced dance between the need to cool the brakes, keep the tyres at the right temperature and offer aerodynamic support was disrupted for Mexico though, as the team exposed the brake disc to alter the balance between the heat transferred and aerodynamic influence offered.

Two solutions were tested on Friday, with Perez trialling a version without the additional panel on the outer collar, before switching to the solution run by Verstappen whereby an extra collar with a reflective surface was added to help influence the airflow's path (blue arrow).

Ferrari new 2022 disc brake comparison

Ferrari new 2022 disc brake comparison

Photo by: Giorgio Piola

Red Bull was not the only team experimenting with a new brake arrangement either, as Ferrari also made changes in Mexico.

The Italian team opened up a pair of windows in the inner drum that exposed the brake disc to the airflow passing by, in order that it was drawn out of the wheel face in a different way.

On top of this, it began experimenting with a new material that it has been working on with Brembo for 2022, which has resulted in it abandoning the scalloped face and subtly altering the DNA of the drill pattern.

There will be further changes for 2022, but the data collected under race conditions over the course of the next few races will certainly serve to shape the continued development until then.

Altitude challenges

The Mexico City Grand Prix is an outlier on the F1 calendar, staged at just over 2200m above sea level.

That altitude poses some unique problems for the teams to overcome, as they must try to thrive, or even survive, in the rarefied air. 

It’s a twofold problem too, as the reduction in air density wreaks havoc from both an aerodynamic and cooling perspective. It requires the teams to think carefully about how much performance they’re willing to give up in order to meet their objectives.

For example, if the track were at sea level or thereabouts, you’d likely see the teams run their cars much more trimmed out, something akin to the aerodynamic setup we’d see at Baku.

But, owing to the altitude, teams generally run with their maximum downforce setup, something that we’d ordinarily see at Monaco or Hungary, as there’s not the same drag penalty as there’d be at those venues.

In terms of cooling, the teams have to consider several factors, including the brakes and power unit, with teams naturally gravitating towards something a little more expansive to assist in keeping temperatures down.

Valtteri Bottas, Mercedes W12

Valtteri Bottas, Mercedes W12

Photo by: Uncredited

In Mercedes' case, we can see the synergy between its cooling arrangement used in Hungary and the one used in Mexico.

The team not only used a similarly sized rear outlet on both occasions, but it also had the panel beside the halo opened up and the largest louvred panel as its preferred choice.

Red Bull took things a step further though, introducing a new, larger engine cover outlet that will most certainly only be used at the Mexican Grand Prix.

The larger footprint of this cooling outlet can perhaps be more easily seen by the relative distance between the upper arms of the wishbone and the trailing edge of the engine cover, with that tide line a little higher in Mexico in order that the heat can be rejected more effectively.

Max Verstappen, Red Bull Racing RB16B

Max Verstappen, Red Bull Racing RB16B

Photo by: Uncredited

Red Bull wasn’t the only team to take a novel approach to cooling for Mexico though, as Alpine also resorted to opening up an extra outlet in the spine of the A521’s engine cover to help reject the heat being created.

Whilst not a feature usually found on the A521, this style of outlet in the spine of the engine cover is not a new feature for F1 teams. Many teams have opted to run supplementary outlets of various sizes in this location to help with cooling throughout the hybrid era.

The letterbox-like opening resides above the tail end of the power unit and in an area close to the turbocharger, which must work harder at altitude to produce the same results. 

Read Also:
shares
comments

Related video

Aston Martin expecting Fallows on board by start of 2022 season
Previous article

Aston Martin expecting Fallows on board by start of 2022 season

Next article

F1 reveals new hybrid branding set for introduction in Brazil

F1 reveals new hybrid branding set for introduction in Brazil
Load comments
What the FIA must do to restore F1's credibility Prime

What the FIA must do to restore F1's credibility

OPINION: The first stage of the 2022 Formula 1 pre-season is just over a month away, but the championship is still reeling from the controversial results of last year’s finale. The FIA acknowledges F1 has had its reputation dented as a result, so here’s how it could go about putting things right

The six subplots to watch in 2022 as a new F1 era begins Prime

The six subplots to watch in 2022 as a new F1 era begins

As Formula 1 prepares to begin a new era of technical regulations in 2022, We pick out six other key elements to follow this season

Formula 1
Jan 24, 2022
Why newly-retired Kimi Raikkonen won't miss F1 Prime

Why newly-retired Kimi 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 Motorsport.com 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.

Formula 1
Jan 23, 2022
Unpacking the technical changes behind F1 2022's rules shake-up Prime

Unpacking the technical changes behind F1 2022's rules shake-up

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. We break 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 F1's new era is still dogged by its old world problems Prime

Why F1's new era 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 Prime

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 Prime

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 stalwart.

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

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