Why a V8 return may not make F1 cars much lighter

A possible return to V8 power units may not make Formula 1 cars much lighter. In a RacingNews365 analysis, Jan van der Burgt argues that the heavier block and thicker pistons of a 3.0-litre V8 would limit savings from smaller batteries and cooling components.

FIA president Mohammed Ben Sulayem has raised the idea of a 3.0-litre turbo-hybrid V8 capped at 100 kW of electric output. Van der Burgt contrasts that with 350 kW of electric power in the current power units and a maximum of 126 kW through 2025. He says the main case for the V8 is more natural racing: energy management now shapes the contest too heavily, with overtaking rarely happening under braking or at corner entry and instead taking place mostly on straights and with overtake mode, where a clear power difference is needed.

Van der Burgt says the eventual V8 decision could still change substantially. He also points to a shared FIA–Formula 1 goal of simplifying power units, particularly their electronic management, to open the door to independent engine suppliers.

Fuel could further limit weight savings. If the combustion engine had to supply a much larger share of power than today’s V6s, Van der Burgt argues, fuel consumption would rise. Larger tanks would then mean more fuel weight at the start of a race.

For lighter, more compact cars, Van der Burgt sees a more direct route in regulation than in a different engine. He cites a maximum wheelbase of 330 centimetres instead of the current 360 as an example, and argues that it would make cars lighter, more compact and more agile. The 330-centimetre limit is illustrative, not an adopted rule.