[DeTomaso] Fw: To thermostat or not to thermostat

[Will Demelo]

I don't remember the exact numbers, but there was a big HP difference 
(15-20?) between 160 and 180 deg the last time I had my car on the dyno.
Will
----- Original Message ----- 
From: "Dave Doddek" <pantera at pobox.com>
To: <detomaso at realbig.com>
Sent: Tuesday, May 20, 2008 11:00 PM
Subject: Re: [DeTomaso] To thermostat or not to thermostat


>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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