Formula 1
Revealed: How McLaren fixed its F1 brake problem
After a solid first pre-season Formula 1 test in Barcelona, McLaren endured a more troubled time in Bahrain last week as its running was hit by brake problems.
Matt Somerfield Giorgio Piola
Edited: Mar 18, 2022, 2:15 PM
Copy link
Share on Viber
Giorgio Piola's F1 technical analysis
Giorgio Piola is the preeminent Formula 1 technical journalist. View our full selection of Giorgio's technical illustrative content
The issue was mainly attributed to the design of its front brake assembly, with Lando Norris unable to do more than a few consecutive laps before the brakes overheated.
It's an issue that didn't rear its head in Barcelona due to the lower temperatures that the teams were running in at this time of the year.
Crucially, however, winter in Spain offers conditions which are unrepresentative when compared to most of the F1 season, so was far away from the requirements of somewhere like a warm Middle East circuit.
Having isolated the issue in Bahrain, McLaren set about finding ways to have a solution ready for the race this weekend, even if it's only a temporary fix and a more refined version will follow in the coming weeks.
The solution fitted to the MCL36 in Bahrain is a metallised version of the carbon fibre brake disc shroud that the team ran during the first two tests.
And, while there's some obvious differences in the shape of the new version spotted in the Sakhir pitlane, the material differences will also play a role in thermal transfer between the brakes, wheel rims and tyres.
McLaren MCL36 front brake comparison
Photo by: Giorgio Piola
The issue for McLaren actually highlights a new and interesting technical battleground that's been forged by these new regulations.
Whilst the brake components have been altered by the regulations, so too has the teams' approach to cooling them.
The diameter of the brake discs has been increased from 278mm up to 330mm, while the drill holes now have to be at least 3mm, which has limited the number and pattern that the teams will now have in their designs.
This obviously comes at the expense of heat dissipation, which is also made more tricky due to the now much larger space afforded in the wheel well, as F1 switches to 18" wheel rims.
This switch, along with the introduction of the outer wheel covers and an inability to send airflow out through the wheel face, means teams now have to vent heat created by the brakes out through an outlet housed on the brake duct fence.
The larger space created within the brake assembly has led to some interesting new design directions, with McLaren one of the teams that's decided to enclose its brake discs within a shroud, meaning there's a clear path for the transit of the airflow and heat that's created under braking.
Read Also:
- FIA explains laser scanning system for F1 scrutineering
- How McLaren’s eye-catching start stalled at the Bahrain test
Similarly, Red Bull has a solution that shrouds the brake disc, albeit it has chosen a different material for this purpose and has also packed some insulation around the shroud too.
Meanwhile, Alpine hasn't taken the full shroud approach seen on the McLaren and Red Bull but has mounted its brake caliper at the front of the assembly. It has some tear drop-shaped outlets in the carbon fibre cooling housing that will allow the heat rejected by the brake disc to pass through.
We want your opinion!
What would you like to see on Motorsport.com?
Take our 5 minute survey.
- The Motorsport.com Team
Read and post comments
Read also :
Share Or Save This Story
Copy link
Share on Viber
Previous article Domenicali urges FIA to be open with Abu Dhabi F1 report
Next article Our predictions for the 2022 F1 season
Top Comments
There are no comments at the moment. Would you like to write one?
View More & Comment
More from
Matt Somerfield
Gallery: How F1 tech evolved during the 2024 season
Formula 1
Formula 1
Gallery: How F1 tech evolved during the 2024 season
How McLaren’s rear wing push changed the game in F1
Formula 1
Formula 1
How McLaren’s rear wing push changed the game in F1
How 2026 F1 rules will help avoid identikit designs
Formula 1
Formula 1
How 2026 F1 rules will help avoid identikit designs
More from
McLaren
Lando Norris laments "very bad job" in qualifying for F1 United States GP
Formula 1
Formula 1
United States GP
2 h
Lando Norris laments "very bad job" in qualifying for F1 United States GP
"We're just a step behind" - what McLaren is trying to solve with its final 2026 upgrades
Formula 1
Formula 1
United States GP
"We're just a step behind" - what McLaren is trying to solve with its final 2026 upgrades
Latest news
2026 MotoGP Australian Grand Prix – How to watch, session times & more
MotoGP
MGP MotoGP
Indonesian GP
1 min
2026 MotoGP Australian Grand Prix – How to watch, session times & more
There will be even less drag in Cup cars at Talladega on Sunday
NASCAR Cup
NAS NASCAR Cup
Talladega II
3 min
There will be even less drag in Cup cars at Talladega on Sunday
Kimi Antonelli delivers Austin surprise pole in tricky Mercedes: "Finally we're seeing the results"
Formula 1
F1 Formula 1
United States GP
1 h
Kimi Antonelli delivers Austin surprise pole in tricky Mercedes: "Finally we're seeing the results"
Why Ferrari failed to deliver on its hype in F1's United States GP qualifying
Formula 1
F1 Formula 1
United States GP
1 h
Why Ferrari failed to deliver on its hype in F1's United States GP qualifying
Feature
Discover prime content
Subscribe and access Motorsport.com with your ad-blocker.
From Formula 1 to MotoGP we report straight from the paddock because we love our sport, just like you. In order to keep delivering our expert journalism, our website uses advertising. Still, we want to give you the opportunity to enjoy an ad-free and tracker-free website and to continue using your adblocker.
You have 2 options:
- Become a subscriber.
- Disable your adblocker.
Subscribe now Already subscribed? Sign in here
Already disabled your adblocker?
Reload page
Manage Alerts
Subscribe