SC2 ͏O͏i͏l Pressure Loss
Super Moderator
Joined: Apr 2015
Posts: 3,229
From: Willamette Valley, Oregon
With no thermostat the water pump is the limiting factor. The pump will push all the water out of the engine in a couple seconds if you remove the top hose. The water needs to stay in the engine long enough to absorb heat and in the radiator enough time to get rid of it. If it circulates too quickly it just goes round and round. The block and head overheats because the water cannot absorb it. The oil thins out and the crankshaft cavitates it and the whole thing melts down. The water temp appears to be ok but the block itself overheats.
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Joined: Jul 2005
Posts: 12,316
From: Slightly off center
Was not aware that the coolant flow in the system was that fast with no restrictions.
So unless the "residence time" is long enough for heat transfer to occur, the coolant temp doesn't change much, as it is not carrying away nor dissipating any heat....
Ya learn something every day.
So unless the "residence time" is long enough for heat transfer to occur, the coolant temp doesn't change much, as it is not carrying away nor dissipating any heat....
Ya learn something every day.
Super Moderator
Joined: Apr 2015
Posts: 3,229
From: Willamette Valley, Oregon
Correct, most racers learn that the hard way. Always monitor oil temp as well as water temp. The Ford triton series of engines monitor cylinder head temp not water temp. The Ford Diesels compare oil and water temp to determine oil cooler efficiency.
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