In a message dated 99-01-14 22:24:08 EST, bratjen@DIRECT.CA writes: << When you rev the engine before shutdown you will speed up the turbocharger which will run after engine shutoff with decreasing lubrication. Both situations should be avoided. >>
best bet is to get a turbo timer, (some late model Supra turbos have these stock- different than the one im describing, tho) which runs engine for about a minit or 2 after you turn off the key , running oil thru the turbocharger, to prevent "coking"(shutting the car off after running high RPMs (super high exhaust gas temps) and oil just sits in the turbocharger, and "cooks"...kind of like clogging your arteries...which is the major cause of turbo failure...) or get a "turbo oiler" which is a cannister mounted in the engine compartment, which feeds cool , stored oil thru the turbocharger after engine is shutoff.. or you can do what i do, and everyone w/ a turbo charged car should do - i let the car idle for at least 2 minutes prior to shutdown...to cool down the turbo. chris '86 audi 5000cs turbo quattro '84 audi 5000s turbo '84 vanagon (hopefully w/ '86 up 5cyl turbo soon) |
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