The '63 Corvair Spyder Turbo was the first American engine I believe to
produce more than 1 hp per ci--150 hp out of 145 ci flat six.  The '65
Turbos produced 180 hp out of 164 ci.

                                                            Jay

Ari Ollikainen <Ari@OLTECO.COM>@gerry.vanagon.com> on 03/23/2002 06:05:32
PM

Please respond to Ari Ollikainen <Ari@OLTECO.COM>

Sent by:    Vanagon Mailing List <vanagon@gerry.vanagon.com>

To:    vanagon@GERRY.VANAGON.COM
cc:
Subject:    Re: Using American engines for Vanagon swap - why the heck not?

At 6:34 PM +0100 3/23/02, Raimund Feussner wrote:
> > >426 cubes?
> > >426 horse's?
> > >
> > >I am not aware of any road worthy, available to the public, standard
> > >import that cranks out as much horspower as it's displacement.
>
>BMW M3. 321hp, 3.2litre, without turbo or anything. The new M3
>around 340hp, also form 3.2litres.
>More than 100hp per litre

        Yep...the original VW Scirocco ('86.5) 16v engine was 1.8L
        (~110cu.in.) rated at 134HP... 1.2HP/cu.in.