PSA ES engine
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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 It was co-developed by the PSA Group (Peugeot and Citroën) and Renault to replace the outdated PRV engine.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 1994 with the Peugeot 406 Coupé.
Unlike the PRV V6, which was a 90° engine because it was developed from a V8 project, the ES had a traditional 60° V-angle. It was constructed entirely in aluminum, and available only in DOHC 24-valve format. Its sole iteration, the ES9, 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 once rumored to be in development, but after Renault abandoned the project upon the purchase of Nissan, and with the decreasing demand in V6 petrol engines in Europe (in a market segment historically dominated by German brands), it is unlikely this will become reality.
Initially, the ES9 could achieve only 194 PS (143 kW), but in 2000, Porsche retuned the engine for the introduction of the Peugeot 607. This iteration, called ES9 J4S, could now achieve 207 PS (152 kW). In 2005, Peugeot introduced variable cam phasing, improving fuel consumption and slightly upgrading power to 211 PS (155 kW). This version will not be used by Renault, as they are no longer interested in the engine, preferring to use Nissan-developed V6s instead.
In 2000, Tom Walkinshaw Racing created a competition version for use in the Renault Clio V6. It could achieve a maximum of 280 PS (206 kW) in racing trim, with a version detuned to 230 PS (169 kW) for the road car. The road version's power was improved to 254 PS (187 kW) by Renault Sport in 2004.
The ES V6 has been used in a variety of cars from Citroën, Peugeot and Renault in the executive and luxury segments, namely the Citroën C5 and C6; the Peugeot 406, 407 and 607; and the Renault Laguna (Mk.I and II), Espace (Mk.III) and Clio V6. Unlike the PRV, it didn't have much of a career in motorsport, the Renault Sport Clio V6 Eurocup being the sole exception.
| Model | Output | Notes |
|---|---|---|
| ES9 J4 | 194 PS (191 hp/142 kW) | 24-valve catalyst |
| ES9 J4 S | 207 PS (205 hp/152 kW) | 24-valve catalyst |
| ES9 /A | 211 PS (208 hp/155 kW) | 24-valve catalyst |
See also
Sources
- [Guide des moteurs Peugeot Citroën] (in French)
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