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Old 02-03-2010, 05:19 AM
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shutting it down

Hey guys, when I had my 03 6.0L, I would pull in wherever and just turn off the key. Never had any problems. I have read that some people like to cool the turbo before shutting off the engine. How long would you leave it idle to cool down, and would just idling through my neighborhood be enough to accomplish this? Does cooling the turbo actually help with wear or anything else? What are your thoughts?

Thanks,
Cliff
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Old 02-03-2010, 05:24 AM
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if i'm not mistaken these turbo's are water cooled AND oil cooled therefore its hogwash. Only oil cooled turbo's really need to cool down. But, i dont know much about these VGT turbos so i could be wrong. someone else chime in,,,,

usually OEM turbo's arent enough to need to let cool down, but once again with these i'm not 100% sure.

Last edited by FastFocus; 02-03-2010 at 05:32 AM.
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Old 02-03-2010, 05:26 AM
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Additionally, depending how you drove your vehicle you need to give time for your turbo to spool down. There is that option of a turbo timer.

My question what is a good temperature to obtain before turning off the truck?
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Old 02-03-2010, 05:42 AM
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I have the Edge Insight gauge. I have always let mine cool down to the 370* range before shutting down. I'm very anal about it. Sometimes in drive-thru's I don't have time to cool all the way down, but never shut it down over 400*. With the stock tune, it actually takes my truck a lot longer to cool over running a hot tune. With stock, even in the winter, I have to wait about 30-45 seconds before cool, longer in the summer. With a custom tune, usually its in my shutoff range by the time I hit the driveway. At most, I'll wait 10 seconds. That's why I hate running stock. I do have an aftermarket exhaust, so that may help some.
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Old 02-03-2010, 05:50 AM
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I just posted anotherthread asking this question because I didn't see this one. I also asked about warming it up in the morning. I'll keep an eye on this one for some answers.


Here is a link to mine in case I get any more info: Warm Up/Cool Down Time
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Old 02-03-2010, 06:01 AM
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As for me and warm-ups, the truck will not move at all if not over 100*. In cold winter temps, that takes about 10-15 minutes. Usually its around 115*-120* before I leave the driveway. Probably overkill, but heat in the winter makes it worth while.
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Old 02-03-2010, 09:10 AM
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Quote:
Originally Posted by FastFocus View Post
if i'm not mistaken these turbo's are water cooled AND oil cooled therefore its hogwash. Only oil cooled turbo's really need to cool down. But, i dont know much about these VGT turbos so i could be wrong. someone else chime in,,,,

usually OEM turbo's arent enough to need to let cool down, but once again with these i'm not 100% sure.
The turbo's on our trucks are NOT water cooled. It is a good idea to let them cool down before shutting the truck down. I too let mine cool to the 350-370 range before I shut it off. Typically loafing through the neighborhood on the way to my house it cools down enough but in the summer I sometimes have to wait a couple of minutes. If you don't have an EGT gauge get one. I also run synthetic oil which handles the heat better than dino oil and that helps too.
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