Breaking news

WEC

ACO, IMSA reveal LMDh regulation details

The ACO and IMSA have announced more details of their latest joint regulations for the new LMDh prototype class.

Filip Cleeren

Filip Cleeren

Edited: May 8, 2020, 1:08 PM

Copy link

Share on Facebook

Share on Twitter

Share on WhatsApp

Share on Linkedin

Share on Pinterest

Share on Viber

Add as a preferred source

Race start

The ACO, which promotes the Le Mans 24 Hours and FIA World Endurance Championship, and IMSA, which hosts the WeatherTech SportsCar Championship, have been working on a joint set of prototype regulations to come into force from 2022 onwards.

More details of the so-called LMDh class were supposed to be revealed at March's 'Super Sebring' event, but due to the COVID-19 outbreak and subsequent cancellation of the event, those convergence plans were delayed.

ACO and IMSA have now announced more details of the plan to bring Europe's and America's prototypes together in one class.

Read Also:

The minimum weight of the new LMDh prototypes has been raised to 1030kg, significantly heavier than the LMP2 chassis they will be based on. Power output has been set to a combined 500kW or 670bhp for the internal combustion engine and a common rear-wheel hybrid system.

As is currently the case with IMSA's leading DPi class, the bodywork of the LMDh cars can be stylised by the manufacturers, who can also replace the spec Gibson LMP2 powerplant with their own engines.

LMDh cars will be balanced with WEC's all-new Le Mans Hypercars using a bespoke Balance of Performance, but it remains unclear if LMH machinery will be able to run in IMSA.

"The introduction of LMDh race cars continues to be targeted in the 2022 racing season for both the ACO and IMSA," a joint statement read.

"However, this timeline will clearly need to be further validated in partnership with the automotive manufacturers, chassis constructors and key suppliers in light of the COVID-19 pandemic to determine if a delayed introduction becomes necessary."

The final set of LMDh regulations is expected to be announced around the 2020 Le Mans 24 Hours, which has been postponed until September 19-20.

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 Facebook

Share on Twitter

Share on WhatsApp

Share on Linkedin

Share on Pinterest

Share on Viber

Previous article McLaren says LMDh rules are "extremely appealing"

Next article Opinion: WEC should double down on its IMSA tie-up

Top Comments

There are no comments at the moment. Would you like to write one?

View More & Comment

More from

Filip Cleeren



How Kimi Antonelli levelled up his character to be F1 2026's world champion-elect

Formula 1

United States GP

How Kimi Antonelli levelled up his character to be F1 2026's world champion-elect



McLaren held fresh talks after Singapore GP clash as Lando Norris promises to "make better decisions"

Formula 1

Formula 1

United States GP

McLaren held fresh talks after Singapore GP clash as Lando Norris promises to "make better decisions"



Inside the competition building F1’s future engineering talent

Formula 1

Formula 1

United States GP

Inside the competition building F1’s future engineering talent

Latest news



On this day: Fernando Alonso wins the world title, Michael Schumacher retires from F1

Formula 1

F1 Formula 1

Brazilian GP

58 min

On this day: Fernando Alonso wins the world title, Michael Schumacher retires from F1



Raul Fernandez still compromised after Indonesia finger injury: “I’m not at 100%”

MotoGP

MGP MotoGP

Australian GP

1 h

Raul Fernandez still compromised after Indonesia finger injury: “I’m not at 100%”



MotoGP can’t simply copy F1’s Drive to Survive success – Chase Carey

MotoGP

MGP MotoGP

Australian GP

2 h

MotoGP can’t simply copy F1’s Drive to Survive success – Chase Carey



Marc Marquez's mind games with Jorge Martin: "If you're fast, you don't need team orders"

MotoGP

MGP MotoGP

Australian GP

2 h

Marc Marquez's mind games with Jorge Martin: "If you're fast, you don't need team orders"

Feature

Discover prime content



Why Toyota’s 2026 WEC triumphs have put it into the all-time greatest endurance racing team debate

WEC

Barcelona

By Gary Watkins

Why Toyota’s 2026 WEC triumphs have put it into the all-time greatest endurance racing team debate



How Toyota destroyed the competition to seal the WEC crowns

WEC

Barcelona

By Gary Watkins

How Toyota destroyed the competition to seal the WEC crowns



How Ford is “hitting milestones” ahead of its WEC Hypercar push

WEC

By Gary Watkins

How Ford is “hitting milestones” ahead of its WEC Hypercar push



Why there’s no perfect solution to the WEC safety car conundrum

WEC

Fuji

By Gary Watkins

Why there’s no perfect solution to the WEC safety car conundrum

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:

Subscribe now Already subscribed? Sign in here

Already disabled your adblocker?
Reload page

Manage Alerts

Subscribe