Date: Sat, 14 Jul 2001 17:51:53 -0700 From: Johannes H Andersen <johannes.andersennopsamel.ac.uk> Subject: Re: Four Cyl. Engine Design Questions
Bob wrote: > > On Thu, 12 Jul 2001 23:49:35 GMT, Nutmegger<Menopsamcretroad.com> > wrote: > > >SlideRule says... > >> > > > > >Pistons are different, different specifications on internal parts. > > > > Or, to sum it up, the 2.0 and 2.3 are relatively low compression, > high flow intake/output, re-enforced/sturdier engines > which are designed specifically to operate with a turbo. Without > the turbo they are dogs. Saab uses a different design of the > aforementioned parts in the non-turbo versions of these engines. > > Bob The compression in Saabs turbo engines kind of depends on the vintage. Since the introduction of APC, the compression ratios have been relatively higher (8.8-9.0) or so. Correct me if I'm wrong on those numbers. Johannes