There is apparently a rigid boxer definition in which the connecting rods
cannot share crank journals.
Most "V" engines share crank journals and are therefore not internally
balanced.
True boxers have separate journals and therefore paired pistons travel in
opposite directions and balance forces.

I just learned this myself.  I thought any 180 degree motor was a boxer.

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Andrew Grebneff
Sent: Sunday, October 18, 2009 3:31 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Friday engine conversions

On Sat, Oct 17, 2009 at 3:06 AM, Chris S <szpejankowski@gmail.com> wrote:
> If you want to talk about sex(y) and dream conversions, how about this
> little, or not, gem that Ferrari build. �This flat-12 engine sits on top
of
> the gearbox. �It's not a true boxer, despite the name, but rather it is a
> 180-degree V12.

Of course it's a boxer. It'll do wonders for the center-of-gravity problem.

How about one of those F1 Subaru boxer-10s (B10s?) made for
Lamborghini in the 80s?

Regards
Andrew Grebneff
Dunedin, New Zealand
Fossil preparator
Mollusc, Toyota & VW van fanatic