Turbo Spool Down, Can You Hear Yours?
03-17-07, 10:17 PM
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Turbo Spool Down, Can You Hear Yours?
I noticed when I shut off the car that I could hear the turbo slowly stop spinning. This is a gt35r, should I be hearing this? Intake is comeing off tomorrow to check for shaft play.
It's normal
03-18-07, 06:44 AM
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A thrust bearing turbo will usually not spin at idle, however, a DBB like the 35R will. That's why after you shut off the car you'll still hear it.
Turbo timers aren't really necessary with a water cooled turbo like the 35R.
Now....I'm forced to go read you're thread about getting your car!
Turbo timers aren't really necessary with a water cooled turbo like the 35R.
Now....I'm forced to go read you're thread about getting your car!
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03-19-07, 06:42 PM
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^^BS
^^More BS
ageed
^^More BS
ageed
Last edited by nasc300; 03-19-07 at 06:46 PM.
03-19-07, 08:49 PM
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Wow, very informative. I'm sure everyone just learned a lot from you. Thanks for sharing your extensive knowledge of turbos with us through your elaborate explanation of how things work.
Here's what I know....
A tt is used so that the hot oil doesn't coke inside the turbo. That's all fine and good. However, with the water cooled option the turbo cools much faster than without it. IF you plan to run the car at WOT and want to shut it off immediately thereafter, then yes, use a tt. Most people will have plenty of time in their journey for the turbo to cool back down before they do though. I'm not saying a tt is bad by any means. I'm just saying it's not an absolute must have item if the driver has the common sense to know when they've been beating on the car hard enough that it needs to cool down more before shutting it off.
As for the thrust bearing vs dbb... My point was that you're not going to notice a thrust bearing turbo zinging away at idle, or especially after the engine is off the way a dbb turbo will. Shaft rotation at idle on a thrust bearing turbo is minimal at best. Perhaps I was to "to the point" in my first statement. I forget how spoon fed some people need to be sometimes as well as how arrogant and ignorant others can be. Thus my lack of posting on here for the most part.
Here's what I know....
A tt is used so that the hot oil doesn't coke inside the turbo. That's all fine and good. However, with the water cooled option the turbo cools much faster than without it. IF you plan to run the car at WOT and want to shut it off immediately thereafter, then yes, use a tt. Most people will have plenty of time in their journey for the turbo to cool back down before they do though. I'm not saying a tt is bad by any means. I'm just saying it's not an absolute must have item if the driver has the common sense to know when they've been beating on the car hard enough that it needs to cool down more before shutting it off.
As for the thrust bearing vs dbb... My point was that you're not going to notice a thrust bearing turbo zinging away at idle, or especially after the engine is off the way a dbb turbo will. Shaft rotation at idle on a thrust bearing turbo is minimal at best. Perhaps I was to "to the point" in my first statement. I forget how spoon fed some people need to be sometimes as well as how arrogant and ignorant others can be. Thus my lack of posting on here for the most part.
