[DMCForum] Re: The first "proper" twin turbo DeLorean PRV since Legend
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[DMCForum] Re: The first "proper" twin turbo DeLorean PRV since Legend



Neato.

Will us people in the far western hemisphere ever get to see it?

Rick.


--- In DMCForum@xxxxxxxxxxxxxxx, Martin Gutkowski - DMC Ltd 
<martin@...> wrote:
>
> Hi All
> 
> What with all this recent talk about engine mods, I thought I'd 
share a 
> couple of random, and fairly poor photos I took today of an engine 
I'm 
> working on with a friend (not for a customer :-)
> 
> It -was- an Island twin turbo DeLorean engine from auto #2727 which 
is 
> getting a 5-speed conversion as well as this engine. I have fitted 
the 
> crank, pistons and one head from a 2458cc Renault 25 turbo. The cam 
in 
> the other head is off being machined to fit the distributor drive 
from a 
> 3 litre Renault Safrane engine so it can go at the "wrong" end of 
the 
> head, so that head is still waiting to go on. It isn't pretty as 
this is 
> in the realms of experimentation and general curiosity but the 
heads 
> have been faced, the (sodium cooled) valves are all clean and re-
lapped 
> (hands still sore) with new stem seals, all new shells, seals and 
rings 
> on the pistons. All the shiny bits are on the inside, basically! 
Damn 
> it'll go well on a bar of boost :-) I'm using the bellhousing from 
a 25 
> turbo (identical apart from trigger sensor mount - ain't ebay 
great), 
> the gearset from a donor DeLorean gearbox, built in to a Renault 30 
> casing. 25 turbo clutch (stronger), I'm using the flywheel from a 
25 
> turbo with the trigger ring slightly modified to suit a 
configurable 
> aftermarket ECU (why oh why did Renault pick such a stupid trigger 
> pattern?!). Exhaust will be 100% Island setup, the intake pipework 
will 
> be custom with twin intercoolers where the exhaust muffler isn't, 
dump 
> valve and a couple of simple cone filters on the turbo intakes, 
ducted 
> from inside the pontoons. Compression ratio is 8:1 and this is 
achieved 
> in the heads, not by the pistons. At first glance, they look 
exactly the 
> same as DeLorean ones, but you can see the blocked off unused 
> distributor port and the un-machined drive on the camshaft. We had 
a 
> nightmare of a time putting the pistons in and I suspect the 
conrods 
> were ever-so-slightly out of true because I ended up re-fitting the 
rods 
> from a 24v 3 litre Citroen PRV (identical) which fit perfectly. 
Praise 
> be to the PRV god that made all even-fire gudgeon pins fully 
floating! 
> Intake manifold, throttle body, injector rails etc, all 25 turbo, 
with 
> the injectors themselves being Alpine A610/ Safrane bi-turbo as 
they're 
> really cheap from Renault at the moment, for some odd reason.
> 
> http://www.delorean.co.uk/DSCN2196.JPG
> http://www.delorean.co.uk/DSCN2198.JPG
> http://www.delorean.co.uk/DSCN2199.JPG
> 
> I might do DeLoreans for a living, but this stuff is still fun to 
me :-)
> 
> Martin
> DMC Ltd
> www.delorean.co.uk
>






 
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