Thread: 4A-GE MK1 Engine question about side vent
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Old 09-10-2009, 12:41 PM   #13 (permalink)
YellowJacket
1985 16v NA 6-speed
 
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Quote:
Originally Posted by toyotaspeed90 View Post
yes.... typically (again, at the time it was a running rich 7a on a header w/o shields... aka gets hot there) it would run for about 3 min and shut off.
But is the fan really necessary or effective or just helpful in that situation?

I wonder how long it would have taken for the engine to cool on its own to the same 128 degrees needed to turn the fan off....

and then the second question, is, in the scenario where the engine does take X minutes longer to cool down on its own to 128, does it really matter that the engine took X more minutes to reach the same 128 degrees?

I still surmise the side vent fan becomes the most effective and useful at long idle or in slow traffic jams on the interstate in the sweltering heat...
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