Re: Turbo cool down - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Re: Turbo cool down
Posted by Steven Pfaff (more from Steven Pfaff) on Fri, 22 Aug 2008 18:15:41
In Reply to: Re: Turbo cool down, xboostreapx, Thu, 21 Aug 2008 08:54:09
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The idea of cooling your turbo is actually somewhat of a misunderstanding. The bigger purpose of allowing your turbocharger 30-60 seconds of idle before shutting off the engine is to give the turbo time to slow down. When you turn off the engine, you are obviously cutting off the oil and coolant supply to the turbo. The faster the turbo is spinning when you turn off the engine, the longer it will spin with no lubrication; this obviously causes undue wear on the shaft bearings. As xboostreapx stated, just take it easy the last couple miles before you park your car, and if you've been driving hard, coast the last couple hundred yards or so.
posted by 98.144.60...
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