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SupraPete Forums Junkie Location: Sydney Registered: July 2002	Re: thermo fans Wed, 07 May 2003 14:25 Blown86 wrote on Wed, 07 May 2003 20:28 Convection causes hotter coolant to flow to where there is cooler coolant. The engine is a big heat sink and keeps heating the coolant for some time after stopping the engine. This keeps happening until the thermostat closes. You can't get thermal shock in this situation. The thermo fan temp sensors are almost always located in the radiator. Circulating air around the engine when stopped is pretty useful, particularly after a few laps of the track. I'm not up on the Convection theory sorry, but in chemistry we were taught that hot water would rise and cold water would drop. The cold water can't drop on my car as it has no where to go because the hose goes to the top of the engine, not the bottom. My thermo fan sensors are located in the pipe on top of the engine, they're controlled by the computer and set to turn on at 92 degrees, off at 86 (thermostat is at 86). I'm going to raise the turn off to 87 as it never turns off at the moment. I've never seen a *factory* sensor located in the radiator. Granted they could have it, I've never seen it though. If your at the track you don't turn your engine off as soon as you come in! You let it idle for more time than a turbo timer to make sure everything levels out before turning it off. [Report message to a moderator]

	Subject	Poster	Date
	thermo fans	Yeeehah	Wed, 07 May 2003 00:30
	Re: thermo fans	ed_ma61	Wed, 07 May 2003 00:46
	Re: thermo fans	Yeeehah	Wed, 07 May 2003 00:48
	Re: thermo fans	ed_ma61	Wed, 07 May 2003 00:50
	Re: thermo fans	Yeeehah	Wed, 07 May 2003 00:59
	Re: thermo fans	ed_ma61	Wed, 07 May 2003 01:12
	Re: thermo fans	Yeeehah	Wed, 07 May 2003 01:16
	Re: thermo fans	ed_ma61	Wed, 07 May 2003 01:37
	Re: thermo fans	RobertoX	Wed, 07 May 2003 01:39
	Re: thermo fans	CrAiGzEE	Wed, 07 May 2003 01:42
	Re: thermo fans	Yeeehah	Wed, 07 May 2003 02:31
	Re: thermo fans	Norbie	Wed, 07 May 2003 03:55
	Re: thermo fans	CrAiGzEE	Wed, 07 May 2003 04:14
	Re: thermo fans	Yeeehah	Wed, 07 May 2003 04:33
	Re: thermo fans	rob_RA40	Wed, 07 May 2003 04:56
	Re: thermo fans	SUPRAGTE	Wed, 07 May 2003 04:58
	Re: thermo fans	ed_ma61	Wed, 07 May 2003 05:43
	Re: thermo fans	mrshin	Wed, 07 May 2003 05:50
	Re: thermo fans	DacBietAE86	Wed, 07 May 2003 07:12
	Re: thermo fans	Stefan	Wed, 07 May 2003 14:44
	Re: thermo fans	SupraPete	Wed, 07 May 2003 07:52
	Re: thermo fans	DacBietAE86	Wed, 07 May 2003 08:41
	Re: thermo fans	Blown86	Wed, 07 May 2003 10:28
	Re: thermo fans	SupraPete	Wed, 07 May 2003 14:25
	Re: thermo fans	SUPRAGTE	Wed, 07 May 2003 08:59
	Re: thermo fans	SupraPete	Wed, 07 May 2003 14:29
	Re: thermo fans	rob_RA40	Wed, 07 May 2003 22:13

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