[DMCForum] Re: 24valve 3.0 PRV

["Christophe Vieira" <88mph@xxxxxxxxxxxx>]

Hello Martin and All, 

Oops, I have not written clearly, I wanted to say that 24v PRV 
installation is possible in the DeLorean as some people here have 
already put this engine in an Alpine A310, car which has the same 
setup as the DeLorean. Sure, the A310 and also the A610 didn't have 
a 24v PRV. I have to check but I'm not sure that the R30 and the 
DeLorean have the same lower crankcase. I'm sure about the A310.

There are several engines for Venturi, the one you speak about is 
the one installed in the Venturi 400 Trophy or GT and its gearbox is 
a Hewland. I know some persons in the Venturi community and I've ask 
for the price for a complete 400 Trophy/GT engine  and it's about 
$20.000 without installation and tuning but you get 408hp? ;o)
In the Venturi, the gearbox is behind the engine, it's the contrary 
of the DeLorean. 

In the XM/605 then engine is installed transversely and in the 
Renault Espace, it is longitudinally. The gearbox of the XM and 605 
are almost the same. Personally, I do not advice you to use the 
engine of the twin turbo Renault Safrane, its city consumption is 
very high, about 27 liters per 100 km and it is a 12v engine.

Best regards from France,

Chris

--- In DMCForum@xxxxxxxxxxxxxxx, Martin Gutkowski <martin@xxxx> 
wrote:
> 
> 
> Christophe Vieira wrote:
> 
> > Yes, engine and gearbox are almost French parts as this engine 
has
> > been used in many different cars (Peugeot 505, 604, 605, Citroen 
XM,
> > Alpine A310, A610, all Venturi...).
> > It's possible to swap the crankcase on the engine as some Alpine 
A310
> > use the 24V PRV in the same position as the DeLorean.
> > I've been told by an Alpine specialist that you just have to 
unbolt
> > the crankcase off the 24v PRV and bolt on the one from the 
DeLorean
> > engine without any kind of problems.
> 
> The Alpine never had the 24 valve PRV - it's too late for the 310 
and 
> the 610 had the 3 litre 12 valve turbo lump. The Atmo had the 
carbed 
> 2.85 and the GTA V6 Turbo had the same engine as the 25 turbo - 
the 
> 2458cc turbo. All the alpine's use the same mounts as the 25 which 
are 
> the same as Bill Robertson's - identical but the mounts are in the 
> middle. The DeLorean crank case is RENAULT 30 - the sump is 
visually 
> identical but the D's is slightly deeper needing those spacers on 
the 
> oil pickup and a unique dipstick tube. The only 24 valvers were 
> available as an option in big Peugeot, Citroen and Renaults from 
95-97 
> and was then replaced across the board by the 3 litre 24v 60 
degree PSA 
> V6 which is still in use today. As far as I know the gearbox in 
the 
> Citroens is very different, as it was in the Renault Espace for 
example 
> where the engine sits transversely. The Venturi is a lore unto 
itself, 
> with a heavily modified 24 valve 3litre twin turbo, twin 
intercooled 
> rear mounted PRV on the end of a UN1. The heads in the Venturi 
engine 
> are not the same being twin-cam I believe. However, all PRV's 
including 
> the 24valver carry the same bottom end as the turbo lumps meaning 
with a 
> change of pistons, you can blow those engines with no fear of 
damage. 
> The rarest version is in the Renault Safrane which had a 
sequential twin 
> turbo setup - this was reserved for the french market alone. I've 
made a 
> friend in the guy who runs www.renaultalpine.co.uk who is dropping 
a 24 
> valver in his Atmo
> 
> Martin

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