How hot is considered overheating?

Nick M

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Sep 9, 2005
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stevenr816;1876633 said:
You obviously have brought so much info to the thread.

Sent from my iPhone using Tapatalk

Thanks for the comical irony.

Sent from my keyboard in the land of realville.


And by the way, there is a reason you are to idle from 15 sec to 2 minutes when driving. Even though it is water cooled.
 

IJ.

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Mar 30, 2005
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Back in the dark old days cars didn't have a water pump and relied on "ThermoSyphon" to circulate the coolant, Turbo's use this effect after shutdown to disipate heat.

I have NEVER used/owned a Turbo Timer and never suffered a Turbo failure, biggest danger in the old days was big boost then a Hot shutdown with the Turbo still spinning at 50K rpm, old Oil would Coke and leave Carbon deposits behind which was hard enough to trash the bearing and journals then next hard pull there was enough play for the wheels to contact the housings and game over in a big cloud of smoke...

Modern Oils and Water Cooled CHRA's have pretty well made this a thing of the past, I know when I'm about the stop so I stay out of boost, I also run an Accusump and this will keep pressure for a minute or so on shutdown.
 

te72

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Mar 26, 2006
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IJ.;1878189 said:
Back in the dark old days cars didn't have a water pump and relied on "ThermoSyphon" to circulate the coolant, Turbo's use this effect after shutdown to disipate heat.

Modern Oils and Water Cooled CHRA's have pretty well made this a thing of the past, I know when I'm about the stop so I stay out of boost, I also run an Accusump and this will keep pressure for a minute or so on shutdown.
Interesting bit about the thermo siphon... learned something new today. Would suck to burn off any coolant from the sounds of it though.

Even though you may not *need* to allow for a cool down period like you needed to back in the day, it wouldn't cause problems would it? Other than burning a bit more gas, I can't see any harm...