PRV Concept
FR / EN
Home/Vehicles/Venturi 260

Venturi 260 —
a hundred more horsepower, by EIA

A 2.8-litre PRV, 160 bhp stock, turbocharged by the engine specialist EIA to 260 bhp. The « EIA PRV » at work: where Douvrin delivered a saloon engine, the tuner draws a GT powerplant from it — without it ever being a factory version.

260
bhp · EIA turbo Z7W
+100
bhp over stock
2849
cc · 12 valves
160
bhp · the stock Z7W
Engines

One code, and an engine specialist

The base is the Z7W — the electronically injected 2,849 cc of the Renault 25 and the Espace, 160 bhp —, which the engine specialist EIA turbocharges. The code remains Douvrin's: Venturi, like Alpine or DeLorean, never struck an engine code of its own — PRV codes are only ever Peugeot, Renault or Volvo.

Venturi 260 MVS · hand-assembled Every known code →
Z7W · EIA260 bhp
2,849 ccEIA turboElectronic injection12 valvesZ7W engine file →
Venturi 260 — reliability of the source: period press and specialist documentation, as the EIA file on the Tuners page states. The stock Z7W, for its part, is documented by the Renault 25 workshop sheets.
The engine specialist

The « EIA PRV »

Venturi entrusts all its PRV V6s to the tuner EIA, which turbocharges them for its hand-assembled sports cars — the « EIA PRV ». From 200 to 260 then 408 bhp: three Venturis, one engine family, one engine specialist. Only the later 300 Atlantique would break the link by moving to the 60° « PR » V6 — it falls outside the PRV's scope. The 200 keeps the GTA V6 Turbo's Z7U 730 as is; the 260 is the first to receive an engine reworked by EIA; the 400 GT starts from the 24-valve ZPJ4 and pushes it, twin-turbo, to 408 bhp.

The full engine-specialist file — codes, outputs, reliability of sources — is on the Tuners page.

260
BHP · EIA TURBO Z7W · HAND-ASSEMBLED
2849
CC
+100
BHP OVER STOCK
160
BHP STOCK
The Venturi line

From the 200 to the 600 LM

Venturi 200, the first step

The turbocharged 2,458 cc PRV, code Z7U 730 — exactly the Alpine GTA V6 Turbo's engine, same code, same output, 200 bhp. 200 file →

400 GT, the summit

24-valve ZPJ4 heads and twin turbocharging, 2,975 cc, two Garretts, 408 bhp — the most powerful PRV-engined road car ever built, and one of only two production twin-turbos with the Safrane Biturbo, both in 1994. 400 GT file →

The 600 LM and the warning

In the mid-1990s the 600 LM brought the PRV back to the circuits — BPR and Le Mans, about 600 bhp, on the Prototypes page. The later 300 Atlantique dropped the PRV for the 60° « PR » V6 (L7X): it falls outside the scope.

No document, for now

No document specific to the Venturi 260 and its EIA engine is in the Library yet — if you own one, the Contribute page awaits you. The stock Z7W is documented by the Renault 25 workshop sheets (Z7W-700, Z7W-706/707).

In the workshop

What is known of the 260's 2.8-litre

The family figures of the stock Z7W — drawn from the Renault « Z engines » manual — and the FAQ answers; nothing here describes the EIA preparation itself.

Venturi 260 The full FAQ →
Turbos
Which cars have a turbocharged PRV V6?
Six production models: Renault 25 V6 Turbo (2.5-litre, 182 then 205 bhp), Alpine GTA V6 Turbo (200 bhp) and GTA Le Mans (185 to 210 bhp), Venturi 200 (200 bhp), Venturi 260 (2.8-litre, 260 bhp) and Alpine A610 (3.0-litre, 250 bhp). The first was the Renault 25 in 1985, with the Z7U. Z7U file →
EIA
Who is EIA?
Venturi's engine house: it turbocharged the PRVs up to 260 bhp (260), 408 bhp (400 GT) and around 600 bhp (the racing 600 LM). 400 GT file →
Venturi
Which Venturis have a PRV V6?
The 200, 260 and 400 GT — the later 300 Atlantique switched to the L7X and falls outside the scope. 200 · 260 file → · 400 GT file →
Codes Z
What do the Renault “Z” engine codes mean?
At Renault, Peugeot and Citroën, PRV V6 units carry Douvrin “Z-codes”: Z6V and Z7V (2.7 L), Z7U (2.5 L turbo), Z7W (2.8 L) and Z7X (3.0 L). Volvo used its own B-codes: B27, B28 and B280. Each family has its own file: Z7U, Z7X, ZPJ4, Peugeot codes, Renault codes and Volvo B-codes.
Codes
Did Alpine, DeLorean, Lancia or Eagle have PRV engine codes of their own?
No. Every PRV V6 carries a code from one of the three partners: the Douvrin Z-codes at Renault (Z6V, Z7V, Z7U, Z7W, Z7X) and at Peugeot — shared with Citroën within PSA (ZM, ZMJ, ZNJ, ZN3J, ZPJ, ZPJ4) — and the B-codes at Volvo (B27, B28, B280). The other marques bought the engine as it was: Alpine under Renault codes (Z7U in the GTA Turbo, Z7X 744 in the A610), DeLorean under the Peugeot ZMJ (ZMJ-159 variant), Eagle and Dodge under the Z7X (711 and 715), Lancia under the ZN3J, Venturi under Z7U, Z7W and ZPJ4 units prepared by EIA. No carmaker ever struck a PRV code in its own name. Every known code →
Culasse
How is a PRV V6 cylinder head tightened?
Threads and bolt-head undersides oiled with engine oil, bolt holes emptied with a syringe. In the prescribed order: 6 daN.m. Wait 3 minutes, slacken one bolt at a time, then 2 daN.m and an angular tightening — 127° on Z7U (except 734) and Z7W 702, 106° on Z7U 734. Then set the valve clearances, run the engine until the fans cut in, let it cool for at least 6 hours, and finish with a further angular tightening without slackening first: 25° in the first case, 45° in the second. After that, no re-tightening at all. Z engines manual, folios 10-23 and 10-24.
Huile
What oil pressure should a PRV V6 show?
Minimums at 80 °C. Z6W, Z7U, Z7V: 2.2 bar at 900 rpm and 4.4 bar at 4,000. Z7W: 1 bar at idle and 4 bar at 5,500. Z7X: 2.2 bar at idle and 4.4 bar at 4,000. Checked with tool MOT. 836-05. Z engines manual, folio 10-39.
Couples
Where are the PRV V6 tightening torques given?
The manual does not tabulate them: it prints them on engine cross-sections, at the end of leader lines, in daN.m or degrees. Six plates, two per family: Z7V-Z6W (folios 10-10 and 10-11), Z7U-Z7W (10-12 and 10-13), Z7X (10-14 and 10-15). Each pair gives a longitudinal and a transverse section. Z engines manual, folios 10-10 to 10-15.

In the Library

No Venturi document; the stock Z7W is documented by the Renault 25 sheets: R25 V6 Baccara and TX (Z7W-700, 160 bhp) — Pub et Trade sheet · Catalysed R25 V6 Baccara (Z7W-706/707) — Pub et Trade sheet

The code behind the 260

Z7W — Douvrin's 2.8-litre, code by code — and the two other Venturis.

Z7W file →200 file →400 GT file → All vehicles →