[DeTomaso] To thermostat or not to thermostat

[Dave Doddek]

A street engine should always use a thermostat.  If the coolant is too cold
then it will accelerate wear.  Also, the engine may not run right if it is
too cold.  An engine should have a coolant temp of 180 to run properly.
Race engines dont use a thermostat because they are always under stress and
running hot anyway.  On a cold day, your coolant may only get up to 120
without a thermostat.

Dave "I run a 180" D

At 08:45 PM 5/20/2008 -0500, you wrote:
>A question for all the engine gurus:
>
>My engine builder recommends not running a thermostat but instead just
>knocking out the center section so as to leave a 25 cent size hole to slow
>down the water flow.
>
>My question is, since we always make a big deal about using the correct
>Cleveland style thermostat, what happens when there is no "hat" on a
>thermostat to close off the warm-up passages?  Does the water just go around
>and around in the engine?
>
>I've run my engine with and without a working thermostat and don't see much
>difference in the operating temperature, only in the time it takes to warm
>up.
>
>Opinions needed.
>
>Jim Gray
>
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