The Most Amazing Automotive Engines
Discussion
I'm a major fan of Ducati's Desmodromic / Desmoquattro system, that uses cams to close the valve as well as open them. Very very clever design, means that valve bounce is eliminated and allows a V-twin with huge valves to rev highly!
Edited by RWD cossie wil on Wednesday 28th December 14:50
williamp said:
They are so boring with plastic covers. Engines where you can see the plumbing are much more interesting:


Totally agree with this. I used to love having a good look and poke around the engine bay when checking the oil or filling up the windscreen wash. Nowadays it's all covered by some stupid plastic cover on top.

RWD cossie wil said:
I'm a major fan of Ducati's Desmodromic / Desmoquattro system, that uses cams to close the valve as well as open them. Very very clever design, means that valve bounce is eliminated and allows a V-twin with huge valves to rev highly!
From what I've read though, one of those ideas which sounds good, but which isn't actually any better than springs. Which is why everyone still uses springs, or pneumatics in the case of F1 etc.Edited by RWD cossie wil on Wednesday 28th December 14:50
Not the best pictures I can find at present, but the naturally aspirated Napier Lion quite something:


Type: 12-cylinder water-cooled W-block (3 banks of 4 cylinders) aircraft piston engine
Bore: 5.5 in (139.7 mm)
Stroke: 5.125 in (130.17 mm)
Displacement: 1,461.6 in³ (23.9 L)
Length: 57.5 in (1460 mm)
Width: 42.0 in (1067 mm)
Height: 43.5 in (1105 mm)
Dry weight: 960 lb (435 kg


Type: 12-cylinder water-cooled W-block (3 banks of 4 cylinders) aircraft piston engine
Bore: 5.5 in (139.7 mm)
Stroke: 5.125 in (130.17 mm)
Displacement: 1,461.6 in³ (23.9 L)
Length: 57.5 in (1460 mm)
Width: 42.0 in (1067 mm)
Height: 43.5 in (1105 mm)
Dry weight: 960 lb (435 kg
Here are a few of my favourites, great looking engines and all having a unique and very special character to them
The Skyline RB26DETT - this one has custom made intake and exhaust manifolds, but it's a good photo

The Honda K20a, imo the best 4 cylinder engine ever made

The Honda B16b, the first Type R engine, making 185bhp from a 1.6L NA engine, an absolute engineering gem.

The Skyline RB26DETT - this one has custom made intake and exhaust manifolds, but it's a good photo

The Honda K20a, imo the best 4 cylinder engine ever made

The Honda B16b, the first Type R engine, making 185bhp from a 1.6L NA engine, an absolute engineering gem.

Edited by Mastodon2 on Wednesday 28th December 16:22
The Black Flash said:
RWD cossie wil said:
I'm a major fan of Ducati's Desmodromic / Desmoquattro system, that uses cams to close the valve as well as open them. Very very clever design, means that valve bounce is eliminated and allows a V-twin with huge valves to rev highly!
From what I've read though, one of those ideas which sounds good, but which isn't actually any better than springs. Which is why everyone still uses springs, or pneumatics in the case of F1 etc.Edited by RWD cossie wil on Wednesday 28th December 14:50
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