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Date: Wed, 8 Sep 1999 10:19:14 -0700
From: "John Weiss" <jrweissnopsamet*NOSPAM*.com>
Subject: Re: SAAB 900S and SAAB 900Turbo


Does your 900S have a turbine at all? They did not in the US in that year, and I'm not up to speed on the European spec cars. I believe the Turbo engines have a lower compression ratio than the non-turbos (may not be true with the "low pressure turbine" engines), which probably means different pistons. The intercooler cools the air after it's heated by the turbine, so it becomes a bit denser and helps prevent premature pinging. It helps add power. -- John R. Weiss Seattle, WA Remove *NOSPAM* from address for e-mail reply Ossi Ala-Penttilä <ossi.ala-penttilanopsam.fi> wrote in message news:37D53EC5.73EFnopsam.fi... > Could someone enlighten me please ! > > I recently bought a SAAB 900S -92. And now I would > like to know something about the SAAB engines. > > Are the other differences than missing intercooler and > different curve in turbo boost control box (APC?)when you > compare it to the 900Turbo ? > > Can I just download a new curve and gain about 50hp? > Or buy a new PROM? > > What is the purpose of the intercooler? Does it make the engine > more durable and enables the use of high turbo pressure or does > it also somehow increase the power. > > I hope these are not too FAQ. > > - Ossi

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