All-time classic engines, well-known and obscure...

[silverbullet]

I'll open with the magnificent Rolls Royce K60 multifuel engine, as found in the FV43x series of military vehicles, with which I am currently having a small love affair: 6-cylinder, opposed piston, 2-stroke, direct injection, twin crankshaft, supercharged...

http://ralphhosier.files.wordpress.com/ ... utaway.jpg" onclick="window.open(this.href);return false;

(previous image was the Leyland L60 )

The "powerpack" of the FV 43x isn't small!

http://pgmodels.files.wordpress.com/201 ... c00067.jpg" onclick="window.open(this.href);return false;

[trucker]

The opposite end of the scale, Honda C90 engine over 60 million made (that's not including the Chinese copies)

[scottbott]

Lancia Fulvia V4 one cylinder head,1300 and 1600 twin cam two twin choke dells,lovely little engines

[ghost123uk]

Lancia Fulvia V4 one cylinder head,1300 and 1600 twin cam two twin choke dells,lovely little engines

And great car too

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Here is an interesting engine



They are only 2.5cc, run at ~32,000 rpm and produce the equivalent of ~240 bhp per litre
I have one (amongst others in my collection )

This is my favourite model engine though



Again, 2.5cc in size, "only" about .3 BHP and "only" about 18,000 rpm, British made Runs on a mixture of Paraffin, Ether, Castor oil and Amyl Nitrate (or Iso Propyl Nitrate if you cannot get the Amyl) I have 2 of these. One of them I have had for ~40 years and I still use it often.

[Titus A Duxass]

The Detroit Diesel
The Stepped piston engine.
http://users.breathe.com/prhooper/opads.htm

The Coventry Climax

The Lister Petrol/Paraffin engine.

My favourite - The Ducati Desmodromic V-twins.

[trucker]

A bit obvious I suppose, RR Merlin, unmistakable noise but always seem to sound different in a P51 for some reason?

[ghost123uk]

Oh, forgot this one (and a bit more on topic than my other post )

Remember that twitter sound from the Deltic powered Type 55 Loco's





Of course they are another odd configuration of 2 stroke.



Love the sound and power of those. Just touching the Loco's bodywork when it's running = you can "feel" the (3,300HP) power

[AdrianC]

A bit obvious I suppose, RR Merlin, unmistakable noise but always seem to sound different in a P51 for some reason?

Different prop contributing different sound effects?

I know from the 4x4 2cvs that once you split the separate components of the sound out - replace the crank-driven fan with an electric, move the induction noise with a snorkel, it's very easy to turn something very aurally familiar into something quite different.



Wonderful little lump. Ally block and hemispherical heads. Flat twin, 375cc-602cc, from 9 to 33bhp. From a normal, late 602, you can easily get 50mpg or 75mph. 24hr racing and a quarter of a million mile reliability - and light enough for one person to fit and remove without even a jack.

[silverbullet]

I'm glad that the Napier Deltic has made the list so early! That was next on my list. Ok so how's about the Commer TS3? Single crank, opposed piston, 2 stroke, s/charged again but with bell-cranked piston actuation. Apparently they used to positively scream under load, you could hear them coming a mile off:

[AdrianC]

Apparently they used to positively scream under load, you could hear them coming a mile off:

Oh, yes...

Tripped across the end of the London-Brighton historic commercial run a few years ago. Just as one of those was firing up to leave Madeira Drive. Along it went, up the steep hill at the end towards the main road, then wellied it back above us.

W. O. W.