HI,
I am wondering if I have to wait to before shut the car after a run. Some say wait like 1 minute or the turbo will be bad very quickly.

I got a Garrett T3 oil + water cooled.

Do I realy have to wait?

Thx

 

i would wait a few minutes or get a turbo timer, you dont want hot oil the sit inside the turbo thats when it starts to cook on inside and will lead to bearing failure among other things

 

If it's water cooled you don't really have to wait because the water will naturally keep moving for a bit after you shut the car down which allows the turbo to cool slowly.

The longest I waited was about 20-30 seconds after hard runs and when I rebuilt the turbo after 8 months of daily boosting there were zero signs of coking.

I also used synthetic oil, but I'm not sure if that had anything to do with it or not.

There's no way I would wait a minute or more. Especially if it's daily driven, that makes all your errands that much longer. lol

 

well thats why you get a turbo timer that works with an alarm and you dont have to wait at all

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EJ1 wilcox &raquo;</TD></TR><TR><TD CLASS="quote">If it's water cooled you don't really have to wait because the water will naturally keep moving for a bit after you shut the car down which allows the turbo to cool slowly.

The longest I waited was about 20-30 seconds after hard runs and when I rebuilt the turbo after 8 months of daily boosting there were zero signs of coking.

I also used synthetic oil, but I'm not sure if that had anything to do with it or not.

There's no way I would wait a minute or more. Especially if it's daily driven, that makes all your errands that much longer. lol

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Right, with it being water cooled, all you really have to do is drive around normally after a hard run to cool things down and that's all. If you're paranoid, let it idle for 20 seconds.

Water cooled turbos on factory cars last the life of the engine and I'm sure the vast majority of owners never turbo timed them.

 

Just curious, how does the coolant in the motor continue to move after you shut the car off?

The timing belt moves the water pump, the water pump moves the coolant. If they aren't moving, neither is the coolant.

Get a turbo timer even if you have a water cooled turbo.

Or just let your car idle for like a minute and a half to two minutes and your fine.

My turbo timer decides how long it needs to run based on temp and a couple of things and it doesn't ever run more than two minutes.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike1114 &raquo;</TD></TR><TR><TD CLASS="quote">Just curious, how does the coolant in the motor continue to move after you shut the car off?
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The water isn't moving as much as it does with the engine running. But because of the differences in temp the water still transfers the heat from the turbo.

I thought about getting a turbo timer after reading a bunch of stuff about them. But I didn't feel like trying to make one work with my alarm.

Then when I rebuilt my turbo and saw how good the bearings looked I was glad I didn't buy one.

I know lots of people that don't even run water lines and never let their car cool down. I guess it depends on the turbo you have though. If I had a new thousand dollar ball bearing turbo I might let it cool off. But I always run used or fairly cheap turbos anyways.