Randy - WORD Sports
2009-02-25
It only takes a few seconds for oil to bathe the turbo bearings.
You can verify this with an oil pressure gauge. Just don't rev the
turbo and shut the engine off, they run at extremely high rpm and will
keep spinning (if revved) after the motor is turned off. The drop
in oil pressure could starve the turbo bearings of oil. The warm-up
(& cool down), other then a few seconds, means driving it easy, not
idling.
At 03:20 PM 2/25/2009, Like toPedal wrote:
a friend of mine
builds drag racing Subaru WRXs and Toyota Supras. i asked him and he
said
"The primary
reason you want to let the car warm up is so that you make sure you have
sufficient oil in the turbo. Its not really a requirement, but I
never drive any of my turbo cars without letting them get up to operating
temperature. Oil starvation can lead to premature wear of the
bearings and shorten the life of the turbo. You don't really
"have" to warm it up, but its a good thing for people who
actually care about their cars."
so your neighbor might drive his drag WRX to work everyday....and he
needs that turbo to last
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