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I wonder if this is a true boxer?

what the hell is that thing?

Land speed record train?

Did some one say land speed record train?

flynfrog wrote:what the hell is that thing?

Land speed record train?

Not the faintest idea frogman, but a flat12 turbdiesel it is!

Talking of trains, the screaming Paxman Valenta V12.

This described as "A small displacemen Flat12 by Matra", with some connection to GM, anyone who knows about this?

A little digging found this

http://www.speedhunters.com/2013/10/son ... r-flat-out

Ah, a 1971 F1 prototype to try out Ferraris 1970 Flat12 concept, that xplains the machined block, thanx Frogman!

xpensive wrote:I wonder if this is a true boxer?

http://www.buh.org/pics/Torino/Torino-Images/249.jpg

Its a fiat loco engine from this ALn56 (maybe)

Had to be a German or Italian work of art. Note the exhaust manifolds on top - 3 cylinders each for blowdown energy capture - in spite of being "log" design.

Probably not a boxer judging by the lack of stagger of the two banks.

Top xhausts is a rare bird on a Flat12, here is one less successful xample of German work of art;

I just love this thread

By the way, my ICE prof was the Head of mechanical design of the M291 flat 12.. I should have a picture of a cutaway Cylinder/Head he brought somewhere, give me a minute...

The 917 flat 12 Porsche engine was not a boxer, since the opposing cylinder conrods used a common crank pin.

xpensive wrote:Top xhausts is a rare bird on a Flat12, here is one less successful xample of German work of art;

http://forix.autosport.com/8w/engines/m291.jpg

Is that the engine that convinced Mercedes-Benz that they need to buy Ilmor?

wuzak wrote:

xpensive wrote:Top xhausts is a rare bird on a Flat12, here is one less successful xample of German work of art;

http://forix.autosport.com/8w/engines/m291.jpg

Is that the engine that convinced Mercedes-Benz that they need to buy Ilmor?

That could very well be, Mercedes pulled out of WSC after the 1991 season and bought Chevrolet's 25% stake in Ilmor in 1993.

At the same time as Mercedes developing the monster Flat12 for WSC, Porsche built a terrible 180 kg V12 for Arrows in F1;



Poor Jackie Oliver never recovered from that.