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Blown86 Regular Location: Perth Registered: July 2002	Re: Oil Temperatures Mon, 28 October 2002 07:35 IRa11Y: Got a fair understanding of thermodynamics and metallurgy from my studies as a mechanical engineer. If you use an overly large oil cooler you MUST use a thermostat. It is not good for the whole engine to run with oil cooled too low. About engine operating temperature is the best temperature. The oil squirters spray at the bottom of the piston crown to keep the crown cooler. Imagine what happens if you start the engine from cold on a cold day. The piston crown within seconds will reach a temperature of around 400C plus but the oil will take minutes to reach operating temperature. The oil is still sprayed at the bottom of the crown. No damage results. The volume of oil at any given instant is not enough to quench the piston to the point of piston failure. Once the oil has reached operating temperature, ideally the system is in a degree of equilibrium ie: heat removed from the crown = heat absorbed by the piston crown for given revs. I've got a water/oil cooler, much less hassle. Oil temperature is regulated by coolant temperature and as Bill said it warms up faster. Used a cooler off a 2.2 turbo Mazda donk and remote mounted it. [Report message to a moderator]

	Subject	Poster	Date
	Oil Temperatures	IRA11Y	Sat, 26 October 2002 23:46
	Re: Oil Temperatures	hiaaa	Sun, 27 October 2002 00:07
	Re: Oil Temperatures	IRA11Y	Sun, 27 October 2002 00:22
	Re: Oil Temperatures	hiaaa	Sun, 27 October 2002 00:41
	Re: Oil Temperatures	rollaboy	Sun, 27 October 2002 02:52
	Re: Oil Temperatures	Blown86	Sun, 27 October 2002 08:38
	Re: Oil Temperatures	IRA11Y	Mon, 28 October 2002 00:18
	Re: Oil Temperatures	Bill Sherwood	Mon, 28 October 2002 01:59
	Re: Oil Temperatures	Blown86	Mon, 28 October 2002 07:35
	Re: Oil Temperatures	IRA11Y	Tue, 29 October 2002 05:15
	Re: Oil Temperatures	Bill Sherwood	Tue, 29 October 2002 12:23
	Re: Oil Temperatures	Sprocket	Mon, 16 December 2002 04:45
	Re: Oil Temperatures	Sprocket	Mon, 16 December 2002 04:48

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