Date: Sat, 28 Apr 2001 13:01:06 -0700 From: Spuds Velvet <spudsnopsamf.com> Subject: Re: Engine noise 9.5 engines
In article <1kkG6.1111$Mz.76576nopsam1.cableinet.net>, stan.stannopsameinet.co.uk says... > Can any one please explain why the 3.0L lpt V6 engine is much noisier than > the 2.3L 4 cylinder engine? > -- Saab Fours have a rotating balancer bar that evens out vibration and incidentally cancels out some vibration noise. The turbo housing also sits on top of the engine, and it absorbs more noise. The new Saab six is designed to manufacture inexpensively so it can be used in economy cars. Saturn uses this engine in the US. For instance, if you want to save $12,000 dollars on a good wagon, you can buy the Saturn V6 at $23.5K instead of the Saab at $36K. They are the same size. The engine sends a bit more unharnessed power through the engine block than it might if Opel had wanted to spend another couple dozen Marks on its manufacture. The engine, therefore, is not designed to dampen vibration. The thin wall engine block actually broadcasts it. The engine itself generates more undampened vibration (and noise) through its heads, and the turbo housing is not positioned to dampen any of this noise. spuds velvet
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