PSA ES engine

PSA ES
Overview
Also called	Renault L
Production	1997–2010
Combustion chamber
Configuration	V6 60°
Chronology
Predecessor	PRV engine
Successor	Prince engine(PSA) Nissan VQ engine(Renault)

The PSA ES engine is a V6 engine used in automotive applications. It was co-developed by the PSA Group (Peugeot and Citroën) and Renault to replace the outdated PRV engine. It was introduced in 1997 with the Peugeot 406 Coupé. It is designed and manufactured by the company "Française de Mécanique" for PSA and Renault. In Renaults, the engine is known as the Renault L engine.

Unlike the PRV V6, which was a 90° engine because it was developed from a V8 project, the ES/L has a traditional 60° V-angle. It is constructed entirely in aluminum, and available only in DOHC 24-valve format. Its sole iteration, the ES9 (PSA) or L7X (Renault), has a displacement of 2946 cc, slightly less than the 3.0 L variant of the PRV. Bore is 87 mm and stroke 82.6 mm. A 3.3 L version was initially planned as well, but is unlikely to see production due to decreasing demand in V6 petrol engines in Europe and Renault's switch to Nissan-sourced V6 after its alliance with the Japanese carmaker.

Initially, the ES9/L produced 194 PS (143 kW) in accordance with the German and French insurance category limits in force at the time for engines under 3 litres.(The BMW 2.8 and Audi 2.8 produced the same figure circa 194 PS.) In 2000, Porsche retuned the Peugeot/Citroën version of the engine introducing variable valve timing on the intake camshafts varying between 0 and 40 degrees, improving fuel consumption, low engine speed flexibility for the introduction of the Peugeot 607 and Citroën C5. This iteration, called ES9 J4S, can now achieve 207 PS (152 kW). In 2005, Peugeot/Citroën slightly upgraded the power to 211 PS (155 kW). This version is not used by Renault who is now focusing on Nissan-developed V6.

...
Wikipedia