Beautiful... :)

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, 13 November 2001 13:15
To: [EMAIL PROTECTED]
Subject: Re: V-6 or 4cyl?


The theory behind engine configuration is about balance and packaging

A 'V' engine (except v12) is fundamentally unbalanced. i.e they shake and
vibrate because all the rotating and reciprocating components are not fully
balanced.
V engines are compact, this is their advantage.

An in-line four cylinder also unbalanced - but you can add two balance
shafts to compensate

straight 6 engines are fully balanced for most harmonics, that is why BMW
still use them when a v-6 would be lighter, cheaper, and more compact.

Flat 'boxer' engines are fundamentally balanced and use a very short, and
therefore stiff, crankshaft. 
This is why Subaru and alfa-sud engines are so smooth and responsive
compared with inline fours.

Straight 8's are fully balanced but the crankshaft is long and not
torsionally stiff and you'd need a long engine bay to fit it all in

PS just because some engines are smoother than others it doesn't mean that
they can't go just hard

Nick
> 
> > so can you explain why?
> > 
> > Drag cars are v-8's because noone makes straight 8's...
> > 
> > If your theory is true why aren't all motors Vees?
> > What about the boxers?
> > 
> > 
> > 
> > -----Original Message-----
> > From: James Marmont [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, 13 November 2001 12:08
> > To: '[EMAIL PROTECTED]'
> > Subject: RE: V-6 or 4cyl?
> > 
> > 
> > no way!!!!!! Thats why all top fuel drags are "V"s
> > 
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, 13 November 2001 12:42 PM
> > To: [EMAIL PROTECTED]
> > Subject: RE: V-6 or 4cyl?
> > 
> > 
> > that's just for space reasons I thought...
> > 
> > 
> > -----Original Message-----
> > From: James Marmont [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, 13 November 2001 11:20
> > To: '[EMAIL PROTECTED]'
> > Subject: RE: V-6 or 4cyl?
> > 
> > 
> > the "v" says it all
> > 
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, 13 November 2001 11:32 AM
> > To: [EMAIL PROTECTED]
> > Subject: V-6 or 4cyl?
> > 
> > 
> > Hey All,
> > 
> > Does anyone know whether it is the number of cylinders or the capacity
of an
> > engine that determines it's torque?
> > 
> > That is would a 2l V6 have more torque that a 2l 4 cyl??
> > 
> > Iggy (dreaming again) Sandejas
> > Sydney NSW
> > Datsun 1600 FJ20t
> > 
> > 
> 
> 
> 

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