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Old 04-23-2001, 07:38 PM   #1
Scooby Specialist
Member#: 5250
Join Date: Mar 2001
Location: Austin, TX Just another filmma
2007 Tundra RCSB 5.7

Question What does a Turbo Timer do?

Does a turbo timer tell you how long you have to wait to turn off your car? Or what? Also you are saying that if i get an Impreza WRX then I can't just go and park and turn my car off immediately? I have never had a turbo so i am interested how people wait so long while letting their car cool down.
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Old 04-23-2001, 07:41 PM   #2
Scooby Specialist
Member#: 1911
Join Date: Jul 2000
Location: Seattle, WA, USA
2000 Impreza 2.5RS
Silverthorn Metallic


You posted this in the wrong forum (NA instead of Turbo), but...

A turbo timer keeps your car running for whatever amount of time you tell it (usually not more than 5 minutes) after you turn off the ignition and remove the key. This allows oil to circulate through the turbo which gets extremely hot. If the oil did not circulate, it would be incinerated by the heat, leading to premature failure.

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Old 04-23-2001, 08:01 PM   #3
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Join Date: Dec 1999
Location: Windsor, Ontario CANADA

leading to what is referred to as "Coking"

And this is BAD!

Why is it BAD? uh....anyone?
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Old 04-24-2001, 05:18 AM   #4
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Member#: 5931
Join Date: Apr 2001
Location: DepotTown,Ypsi MI USA
02 WRX Sdn


My HKS Type 0 Turbo Timer has a few different modes of operation. The one I will use most of the time monitors the engine speed and will automatically adjust it self. The harder the car was driven just prior to shut off the longer the TT allows the engine to run. HKS has not yet produced the WRX specific wiring harness, it should be available in the next few weeks. In the meantime I'am just letting my car run for a bit when I can.
Here's some interesting numbers. At idel (sp) the turbo is spinning at 20,000 rpms. At full boost it's spinning at about 250,000 rpms. Amazing but true.
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