Date: Wed, 04 Feb 2004 21:39:30 -0500
From: ma_twain <ma_twainnopsamo.com>
Subject: Re: Do I need to let my turbo "cool down" for awhile ('1990 C-900T)?
Johannes H Andersen wrote:
>
> ma_twain wrote:
>
>>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 :-)
>>
>
> On the other end of the scale, it is also important the let the engine
> warm up gently before using the mighty turbo power, otherwise the head
> gasket will be in trouble.
>
That can be said for any engine - turbo, supercharged or NA. This includes
the driver as well. More heart attacks occur in the morning when people
try to exercise as soon as they wake up.
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