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Hand-assembled in France and powered by a 24-valve PRV V6 taken to 408 bhp with twin turbos by the engine specialist EIA, the Venturi 400 GT is the most powerful road car ever powered by the Douvrin V6 — and the only road PRV to combine the family's two extremes: 24-valve heads AND twin turbocharging.
The starting point is the ZPJ4 — PSA's 24-valve with ACAV variable intake from the Peugeot 605 SV24 and Citroën XM V6 24S, about 200 bhp. The engine specialist EIA grafts two Garrett turbochargers onto it and doubles the stake: 408 bhp. Venturi never struck a code of its own: the engine remains a ZPJ4.
In the mid-1990s Venturi brought the PRV back to the circuits with the 600 LM — a racing version of the Atlantique entered in the BPR championship and at Le Mans. Its 3.0 L 24-valve twin-turbo PRV V6, prepared by EIA, delivers about 600 bhp, making it one of the most extreme road-derived applications of the Douvrin V6. Above it, only the record-breaking WM prototypes — up to 910 bhp — and the Peugeot Oxia concept (680 bhp) went further.
Its story — and that of the record-breaking WMs — is on the Prototypes page; the EIA file is on the Tuners page.
The 200 carries the turbocharged 2,458 cc Z7U 730 — exactly the Alpine GTA V6 Turbo's engine, 200 bhp; the 260 a 2.8-litre Z7W, 160 bhp stock, turbocharged by EIA to 260 bhp.
Only two production cars, both in 1994: the Renault Safrane Biturbo (268 bhp, prepared by Hartge) and the 400 GT. Before them, Legend Industries' DeLorean Twin Turbo — four cars converted, two of them twin-turbo — did not survive DMC's bankruptcy; around 1995 Hartge built a 280 bhp Laguna Biturbo prototype. The story is in the Journal: « Safrane Biturbo — the German rival, prepared in Germany ».
The production PRV is a 12-valve from 1974 to the end of its career. Only three road cars are exceptions: the Peugeot 605 SV24, the Citroën XM V6 24S and the 400 GT — the only one of the three to add two turbos.
The later Venturi 300 Atlantique dropped the PRV for the 60° « PR » V6 (L7X) — it falls outside the scope. No document specific to the 400 GT and its EIA preparation is in the Library yet — if you own one, the Contribute page awaits you.
The FAQ answers on the 400 GT, its engine specialist and the 24-valve it starts from.
No Venturi document; the stock ZPJ4 is documented on the PSA side: Peugeot 605 SV 24 (ZPJ4) — Pub et Trade sheet · Citroën XM V6.24 (ZPJ4) — Pub et Trade sheet · Citroën Technical Note no. 23 — the 24-valve and the ACAV
The 24-valve ZPJ4 and its ACAV variable intake — the 400 GT's base — and the racing 600 LM.