Energy from the one-make four.2-litre normally-aspirated Gibson V8 has been diminished by 20kW or 25bhp along with the 30kW or 40bhp initially deliberate.
Which means the Gibson engine will push about roughly 535bhp (400kW) in 2021 in contrast with greater than 600bhp (450kW) for the reason that introduction of the present P2 components in 2017.
The minimal weight has been elevated by 20kg to 950kg, whereas the automobiles will now solely have the ability to run in low-downforce Le Mans aerodynamic configuration in any respect tracks.
The rule makers, WEC promoter the Vehicle Membership de l’Ouest and the FIA, had hoped to gradual the automobiles with the unique 40bhp discount in engine energy and the transfer to manage tyres provided by Goodyear.
The P2 grid will now race on the identical vary of tyres provided by Goodyear throughout the 2019-20 WEC season.
The necessity to scale back the velocity of LMP2 automobiles follows the introduction of the brand new breed of Le Mans Hypercar for 2021 instead of LMP1.
Their goal race lap time across the eight.47-mile Circuit de la Sarthe at Le Mans is 3m30s, which represents a big lower in efficiency from P1.
Picture by: JEP / Motorsport Images
The 3m30s goal compares with the quickest P2 race lap at Le Mans final 12 months of 3m27.508s.
An announcement from the ACO learn: “Following the preliminary testing section and session with each Goodyear and the groups, the FIA WEC Committee has determined that retaining the beforehand used compounds is the best option, given their confirmed and constant efficiency in all situations in addition to their drivability.”
A brand new vary of tyre compounds tried in pre-season testing are identified to have raised query marks with the groups and drivers.
The assertion from the ACO added that the additional discount in engine energy “will contribute to decrease operating prices by extending lifespan of various elements”.
The brand new degree of efficiency in P2 may also be enforced throughout the European Le Mans Collection, in addition to within the sister Asian Le Mans Collection subsequent winter.
The adjustments have been introduced simply two weeks forward of the scheduled ELMS sequence opener at Barcelona on April 18 and 4 weeks earlier than the primary spherical of the WEC set for Spa on 1 Could.