Prototype BX

Anything about BXs
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DavidRutherford
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Post by DavidRutherford »

That engine is interesting. I can see a fair number of similarities (and a number of differences) between it and the Alfa-Romeo Water-cooled flat four as fitted to the Alfasud, Alfasprint and Alfa 33. That was a fabulous flat engine and had a number of design aspects that I think are much better than other flat engines (like the fact that it has a separate sump, one-piece block and overhead cams).

I often think it would be nice to fit a transaxle and a 6-cylinder longitudinal engine to a CX. Only problem is what to use. Only engine/gearbox combo I can think of would come from VAG, and I'm not sure I'd want to put a VAG engine/box into a Citroen.
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Post by jonathan_dyane »

DavidRutherford wrote:The CX had indeed been intended to have a flat 6 aircooled engine. It would have finished the family of cars at the time: A-series with a flat twin. G series with a flat 4 and the CX with a flat 6.
And what a range that would have been! Great shame the flat 6 air cooled engine never graced the CX.
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jonathan_dyane
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Post by jonathan_dyane »

DavidRutherford wrote: I often think it would be nice to fit a transaxle and a 6-cylinder longitudinal engine to a CX. Only problem is what to use. Only engine/gearbox combo I can think of would come from VAG, and I'm not sure I'd want to put a VAG engine/box into a Citroen.
I think the production engine I'd like most under the bonnet would be an 1980s Audi 5-cylinder turbo...
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mnde
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Post by mnde »

DavidRutherford wrote:I often think it would be nice to fit a transaxle and a 6-cylinder longitudinal engine to a CX. Only problem is what to use. Only engine/gearbox combo I can think of would come from VAG, and I'm not sure I'd want to put a VAG engine/box into a Citroen.
Renault 30 PRV V6... as also found in the DeLorean...?

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stuart_hedges
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Post by stuart_hedges »

jonathan_dyane wrote:I think the production engine I'd like most under the bonnet would be an 1980s Audi 5-cylinder turbo...
I've thought that. I very briefly owned a VW Passat with a non-turbo version of that engine, and it was brilliant. When I first got the XM I remember thinking how much nicer it would have been with that engine.

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DavidRutherford
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Post by DavidRutherford »

mnde wrote:Renault 30 PRV V6... as also found in the DeLorean...?
Yuck! A 90 degree V6. The PRV V engine was designed as a V8, and then had 2 cylinders lopped off it. It just doesn't work properly.

Plus I'd be looking for a Turbodiesel.

The idea of a 5-cyl turbo engine is nice, but the CX engine bay would only just accept a 4-cyl engine longitudinally. A straight-5 engine is out of the question. Even in the Audi it practically sticks out through the grille, and means the radiator is pushed to one side.

I'd love a flat-6 turbodiesel engine, but to my knowledge one has never been made. Subaru are looking at the possibility of flat-4 and flat-6 TD engines for their cars, but they won't be available cheap for about another decade.
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jonathan_dyane
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Post by jonathan_dyane »

DavidRutherford wrote: I'd love a flat-6 turbodiesel engine, but to my knowledge one has never been made. Subaru are looking at the possibility of flat-4 and flat-6 TD engines for their cars, but they won't be available cheap for about another decade.
Looks like the flat 4 diesel Subaru is available now: http://www.boxerdiesel.com/ Shame Subaru's no longer rust to hasten the process of getting ones hands on the engine...
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Post by Way2go »

Over 50 mpg claimed too, stylish and economical! :)
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mat_fenwick
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Post by mat_fenwick »

I'm not suggesting that it would be suitable for a CX, but this has a supercharger, 6 horizontally opposed pistons (but only 3 cylinders!) I really like their simplicity, and also the sound as this YouTube video shows.
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Post by Way2go »

Seems brilliant in it's simplicity! :D A real piece of lateral thinking by it's designers. 8)

Two-stroke technology I suppose would fail emission targets though? :?
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Post by docchevron »

What a bloody brilliant thread this is turning into!

hhmm, I'm sure I remember a flat 6 diesel lump from somewhere, and I'm pretty sure I remember it in some agricultural machine...
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Far too many BX's, a bus, an ambulance a few trucks, not enough time and never enough cash...

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jonathan_dyane
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Post by jonathan_dyane »

The TS3 is a fabulous piece of design, and sounds sublime. Tad heavy for the CX tho...

Maybe it would fit into one of these however ;-)
"Boring damned people. All over the earth. Propagating more boring damned people. What a horror show. The earth swarmed with them." -Charles Bukowski

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kermit the frog
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Post by kermit the frog »

I remember stripping one of those TS3 engines down at college. :roll:
And on of my friends actually remembers working on them in the old commer refuse wagons and some coaches i think as well.

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Post by Philip Chidlow »

So, the question is: what is that particular GS for?
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