Date: Fri, 30 Jan 2004 00:28:11 -0500 From: ma_twain <ma_twainnopsamo.com> Subject: Re: Do I need to let my turbo "cool down" for awhile ('1990 C-900T)?
Grunff wrote: > Bob wrote: > >> Back to the OP's question: turbo spin-down used to be a more serious >> issue when turbo units were not water cooled. > > > The real answer, which I omitted in my previous replies, is this: How > many of us come off the motorway (US/Can: Highway) and turn off the > engine straight away? We don't - we drive down progressively smaller, > slower roads until we reach our destination, by which time the turbo has > cooled down plenty. :-) > The original post also mentioned that he had 110,000 miles - and it still ran fine. However, many Saabs reach 300,000 to 400,000, so 110,000 and running fine is not saying much. Just my opinion, letting the engine idle for 30 seconds to 1 minute also allows the driver time to close the sunroof and windows. The sound of an idling Classic exhaust echos nicely in a concrete parking garage :-)