Date: Sat, 01 Jan 2005 10:58:30 -0500 From: ma_twain <ma_twainnospamo.com> Subject: Re: 9-3 Aero woes
Gary Fritz wrote: > ma_twain wrote: > >>It is possible that the car was voted Top Gear car of the year when >> > it > >>was tested with a manual transmission - not an automatic. I prefer a >>manual transmission in a car with a turbo - you can take full >> > advantage > >>of the turbo by keeping your rpms up because you choose when to >> > shift. > > Not with the 9-5 Aero, you can't. The instant you let off the gas and > hit the clutch to shift, the turbo **instantly** spins down. No matter > how fast I shift, I can't get it into the next gear before the turbo > gauge drops. A Saab service person, who seemed to know what he was > talking about, said this was done intentionally to reduce pollution. > Don't know if that's true or not, but it sure destroys the car's > performance in shifting situations. > Interesting information. How does it spin down so quickly - a brake of some type? You can't ignore the laws of physics - once a body is in motion it tends to stay in motion. A spinning turbo at full boost is a not a minor amount of centifugal motion. Not that I would highly recommend it, but you could eliminate this turbo spin down by not taking your foot off the gas. There are some people, professional truck drivers, who never use the clutch after they get the vehicle moving from a dead stop. These drivers drive hundreds of thousands of miles a year and their rigs are worth over $100K, so I would think they would not take any chances on abusing their transmission. > Alistair, I don't know much about the 9-3. In the 9-5 world, only the > Aero has the huge slow-to-spin-up turbo. The lower models have smaller > turbos that deliver less steady-state horsepower, but they spin up much > faster. Your Vector might not have the lag problem. Can't say how the > automatic gearbox will perform, though. > > Gary > >
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