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From: Halmyre on 16 Apr 2010 11:10
In article <82rcdhFp1kU1(a)mid.individual.net>, miktoolman(a)miktoolman.plus.com says...
>
> "Adrian" <toomany2cvs(a)gmail.com> wrote in message
> news:82r6t9Ft3U21(a)mid.individual.net...
> > "Mortimer" <me(a)privacy.net> gurgled happily, sounding much like they were
> > saying:
> >
> >> Assuming that the engine capacity is the same, is there any advantage of
> >> a V4 engine over an in-line engine?
> >
> > Packaging is the main one.
> >
> >> Do V engines run more or less smoothly than in-line or boxer
> >> (horizontally-opposed) engines?
>
> I would say less.
>
> > Depends on the crank construction and the vee angle. Just think of a flat
> > engine as just a 180deg vee.
>
> AFAIA a flat or straight engine is more balanced than a V configuration. The
> V 4 Ford engine, frinstance, needed a countershaft to run smoothly.
> Mike.
>
>
>

Some V engines are perfectly balanced - V12 and V16 I think.

There's a comprehensive article here:

http://www.autozine.org/technical_school/engine/smooth1.htm

--
Halmyre

This is the most powerful sigfile in the world and will probably blow your head clean off.
From: Adrian on 16 Apr 2010 11:23
Halmyre <no.spam(a)this.address> gurgled happily, sounding much like they
were saying:

> There's a comprehensive article here:
>
> http://www.autozine.org/technical_school/engine/smooth1.htm

Can you warn me before posting stuff like that? That's both bloody
fascinating and seriously head-hurty.
From: Nick Finnigan on 16 Apr 2010 12:40
Mortimer wrote:
> Assuming that the engine capacity is the same, is there any advantage of
> a V4 engine over an in-line engine? Do V engines run more or less
> smoothly than in-line or boxer (horizontally-opposed) engines? I realise

Boxers are best, much better than even a Mitsubishi balanced inline.

> that V engines are often used to reduce the size of engine compartment
> needed, by reducing the length because left and right bank cylinders can
> overlap and by reducing the height of the cylinder block because it's
> tilted over.
>
> There was a fashion for V4 engines (Ford Corsair, Saab 96) in the 1960s
> but you don't find them nowadays.

Once you have managed inline & transverse, there's no real point in a V4.
From: Dave Plowman on 16 Apr 2010 18:44
In article <82rcdhFp1kU1(a)mid.individual.net>,
Mike G <miktoolman(a)miktoolman.plus.com> wrote:
> AFAIA a flat or straight engine is more balanced than a V configuration.
> The V 4 Ford engine, frinstance, needed a countershaft to run smoothly.

Depends on the angle, IIRC, and the Ford version was designed to be
machined on the same equipment as their V-6.

But some in line fours have balance shafts too.

In line sixes need a torsional vibration damper.

--
*Give me ambiguity or give me something else.

Dave Plowman dave(a)davesound.co.uk London SW 12

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