Date: Sat, 07 Sep 2002 21:34:24 +0100
From: Johannes H Andersen <>
Subject: Re: Engine in the 9-3 sport sedan

Mark Gerritsma wrote: > > "Johannes H Andersen" <> schreef in bericht > > >> Judging from the initial specification I would say it isn't. > >> In an effort to cut costs they now use a modified Opel engine. It > >> could just be, that the old engine required so much effort to meet > >> future emission standards, that they decided to design a new > engine. > > > > I somehow don't believe in this explanation. 1) The Saab engine > > carries on in the 9-5 > > But for how long? Maybe with the next generation 9-5, they will also > get engines from the new family. You have to remember that the 9-5 was > updated just recently. It requires a big effort to fit new engines > into an existing design. > > > and 2) Emission control stems from engine > > management and is helped by the 16 valve design also present in > 'old' > > engine. The 9-5 Aero has remarkable low CO2, this is noticeable > since > > it affects UK taxation. > > But the European emission laws also targets 3 other gases: CO, NOx and > carbohydrates. Is the 'old' engine good enough to meet future > requirement on all of them? I don't know. Then why do you put this suggestion up in the first place if you have no hint or basis whatsoever for the validity? When cleaner engines were introduced in the past, it usually meant a radical change in engine design. E.g. OHC 16 valve promotes better breathing and more complete combustion, hence less CO & NOx. If the new engine was cleaner, then there would be some obviously noticeable differences in the design which we probably would have heard about already. Johannes > [...]

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