Following the ban on turbochargers at the end of the 1988 season, Formula One transitioned to a 3.5-litre naturally aspirated formula in 1989. While various engine configurations were used, the V10 layout became the standard. Honda and Renault were key competitors, with Honda’s RA109E V10 engine appearing in 1989 . By 1992, Renault engines were successful, powering Williams to three consecutive constructors' championships between 1992 and 1994, with power outputs reaching between 750–820 bhp at speeds up to 14,300 rpm.
The era was characterized by advancements in engine design. To increase power, manufacturers focused on increasing rotational speed. A key limitation was the traditional metal valve spring, which limited engine speeds. This was addressed by the adoption of pneumatic valve springs, introduced by Renault in 1986 and used by all manufacturers by the 1990s. These systems used pressurized air to close valves, reducing power loss.
Engineers also utilized “long conrods” to manage vibrations in high-revving engines. Increasing the stroke to center-to-center conrod length ratio helped stabilize engines at higher revolutions. Advances in materials were crucial in enabling these high speeds by reducing weight and increasing strength.
In 1995, the FIA reduced engine capacity from 3.5 to 3.0 litres. This change was driven by new regulations, requiring Ferrari to switch to a V10 engine for 1996 . Despite the reduction in displacement, power figures continued to climb. Renault was the initial dominant engine supplier from 1995 until 1997, winning the first three world championships with Williams and Benetton in this era. The championship-winning 1995 Benetton B195 produced a power output of 675 hp, and the 1996 championship-winning Williams FW18 produced 700 hp; both from a shared Renault RS8 3.0 L V10 engine. Ferrari’s first V10 engine, introduced in 1996, produced 715 hp. Mercedes-Benz also became a major power unit supplier, with the 1999 McLaren MP4/14 producing between 785 and 810 hp.
To keep costs down, the 3.0 L V10 engine configuration was made fully mandatory for all teams in 2000. The V10 configuration had been the most popular since the banning of turbocharged engines in 1989, and no other configuration had been used since 1998.
In 2002, the BMW P82 engine became the first in the 3.0-litre V10-era to break through the 19,000 rpm wall, during the 2002 Italian Grand Prix's qualifying. BMW's P83 engine used in 2003 season managed an impressive 19,200 rpm and cleared the 900 bhp mark, at around 940 bhp. Honda's RA003E V10 also cleared the 900 bhp mark at the 2003 Canadian Grand Prix.
By 2005, power outputs reached their peak:
Toyota: Had over 1,000 bhp, according to Toyota Motorsport's executive Vice President, Yoshiaki Kinoshita. However, for reliability and longevity purposes, this power figure may have been detuned to around 960 bhp for races.
Honda: Had over 965 bhp.
BMW: Made over 950 bhp.
Mercedes, Renault, and Ferrari: All produced around 900 bhp to 940 bhp @ 19,000 rpm.
For 2006, the engines had to be 90° V8 of 2.4 litres maximum capacity. The previous year's engines with a rev-limiter were permitted for 2006 and 2007 for teams who were unable to acquire a V8 engine, with Scuderia Toro Rosso using a Cosworth V10. The 2006 season saw the highest rev limits in the history of Formula One, at well over 20,000 rpm; before a 19,000 rpm mandatory rev limiter was implemented for all competitors in 2007. The pursuit of high engine speeds that defined the V10 era eventually led to a mandatory rev limit of 19,000 rpm in 2007.
The V10 era saw high rotational speeds, reaching over 20,000 rpm during the 2004–2005 seasons. The 3.0-litre V10s of 2005 eventually surpassed the power figures of the 1994 Ferrari Tipo 043 V12, with multiple manufacturers exceeding 950 hp. The era refined the concept of the engine as a stressed member of the chassis.