MCE-5, the VCR-i engine mounted in a Peugeot 407

[antoinet111]

I can reread it I can not find, engines of this capacity with this torque power, I find when you want and less heavy.

oh well you find other engines that deliver 25nm of torque per liter and almost 150cv / liter?
and where?
FYI, these values ​​are higher than those of a Porsche 911 turbo latest model engine ...

1000 gsxr 2010 for example and with the advantage of being much more compact and light.

[Christophe]

with the advantage of being much more compact and light.

Yes but ... with the disadvantage of being much less reliable ... than an average car ... (necessarily it goes up in the RPM ...)

[oiseautempete]

1000 gsxr 2010 for example and with the advantage of being much more compact and light.

Do not mix tea towels and towels ...
It is not a car engine and in addition it is very far from delivering 25nm of torque ... it is barely half of it ...
A motorcycle engine cannot be used for a car because it is not very flexible (cannot pull a load), on the other hand the reverse has been done several times, to mention only the Münch Mammuth (1200 NSU engine) and the BFG (Citroën 1300GS engine) ...

[micdhi]

oh well you find other engines that deliver 25nm of torque per liter and almost 150cv / liter? .

I think that sometimes you should read it again before posting .....

25 Nm it's not even the torque of my panda 900 cc, which has 55 Nm of torque because 25 Nm:
this corresponds to 2.5 daN or about 2.5 mkg old unit ????

[oiseautempete]

oh well you find other engines that deliver 25nm of torque per liter and almost 150cv / liter? .

I think that sometimes you should read it again before posting .....

25 Nm it's not even the torque of my panda 900 cc, which has 55 Nm of torque because 25 Nm:
this corresponds to 2.5 daN or about 2.5 mkg old unit ????

Indeed, it lacks a "0" is 250Nm or ~ 25.5mkg ... must be said that I tend to speak in m / kg which is much more meaningful, but "international standards" have preferred a "scientific" language ... besides, CVs are also obsolete, we should speak in Kw ...
That says 25mkg of torque per liter is enormous, there are still 20 years ago it took a 2.5 liter engine to deliver as much!

[antoinet111]

1000 gsxr 2010 for example and with the advantage of being much more compact and light.

Do not mix tea towels and towels ...
It is not a car engine and in addition it is very far from delivering 25nm of torque ... it is barely half of it ...
A motorcycle engine cannot be used for a car because it is not very flexible (cannot pull a load), on the other hand the reverse has been done several times, to mention only the Münch Mammuth (1200 NSU engine) and the BFG (Citroën 1300GS engine) ...

that is done in both directions, you speak NSU, you could quote the NSU Sportprinz, with which its twin-cylinder engine of 600cm3 of motorcycle origin.

[Christophe]

A motorcycle engine cannot be used for a car because it is not very flexible (cannot pull a load), on the other hand the reverse has been done several times, to mention only the Münch Mammuth (1200 NSU engine) and the BFG (Citroën 1300GS engine) ...

Excuse me but these 2 motorcycles are still quite "shitty" aren't they? This was done for reasons of cost ... and above all for ease and not to achieve "motorcycle performance" ...

So I would say "yes and no" and I have at least one counter example: motors of 1000 and + sports are fitted in some ultralight "racing" cars ...

Motorcycle and car engine have radically different specifications and designs (with exceptions ...)

On the subject: I was wondering the other day pkoi there had never been (to my knowledge) a car with a big V2, it is very torquey yet but surely not flexible enough? There were however cars with flats 2 (2cv) not more flexible ...

[antoinet111]

There is one http://www.pembleton.co.uk/

guzzi engine ahead on a cyclecar, but I grant you that it is little known.

[oiseautempete]

A motorcycle engine cannot be used for a car because it is not very flexible (cannot pull a load), on the other hand the reverse has been done several times, to mention only the Münch Mammuth (1200 NSU engine) and the BFG (Citroën 1300GS engine) ...

Excuse me but these 2 motorcycles are still quite "shitty" aren't they? This was done for reasons of cost ... and above all for ease and not to achieve "motorcycle performance" ...

So I would say "yes and no" and I have at least one counter example: motors of 1000 and + sports are fitted in some ultralight "racing" cars ...

Motorcycle and car engine have radically different specifications and designs (with exceptions ...)

On the subject: I was wondering the other day pkoi there had never been (to my knowledge) a car with a big V2, it is very torquey yet but surely not flexible enough? There were however cars with flats 2 (2cv) not more flexible ...

No no, not crappy at all neither of them: at the time of the Mammuth, there was no more powerful and if it is not very beautiful, it was quite effective, moreover, it was equipped with a secondary transmission by chain in a sealed casing and oil bath, quite ugly but very effective (almost wear-free chain), when at the BFG, I had the opportunity to try one At the time when it was still on sale: well it worked pretty well: extremely flexible, accelerations higher than those of a BMW R100, very very nice noise (nothing to do with the GS) good handling despite a wheelbase greater than the standard, the only real flaw: the finish is rather dismal for the price ... the 2 motorcycles are highly sought after in collections, especially the Mammuth which has other descendants (Mammuth 2000, also with chain under casing ...)
http://www.muenchmotorbikes.com/
Obviously on cyclecar (or monotrace) there have been motorcycle engines, but a cyclecar is comparable to a motorcycle with 3 or 4 wheels ...
A V2 is bulky on a car and vibrates more than a "flat" or a 2 in line wedged at 180 ° (Fiat 500) ... But the torque of a bi is not really much greater than that of a 4cyl which will have a flatter curve, simply a much more "expressive" bi which gives the impression (but I shit on all 4 legs ...), but Yamaha made a bi in line which did not work too much well at this level because wedged at 180 °: vibrated little but not very expressive ...
... the so-called "torque" twin cylinders like the HD are "long stroke" with long connecting rods and a crankshaft fitted with enormous flywheels / counterweights (specific to HD, as well as coplanar cylinders), an arrangement which favors the torque at low and medium revs and flexibility, to the detriment of maximum power and liveliness ...
On cars the best compromise is the 3 cylinders, which explains the multiplication of this config on cars: good torque, not too much vibration, not too much friction, good power, nice noise (in laps it reminds of the Porsche 911 )
About three-cylinder, have you ever heard of a Triumph Trident or BSA rocket 3 engine (it was the same engine): beautiful to cry ...
http://www.youtube.com/watch?v=oMtXyQQZhog

[antoinet111]

Pioupiou, I drink your words ...