[DeTomaso] To thermostat or not to thermostat
Jim Gray
jimgray at cableone.net
Tue May 20 23:33:55 EDT 2008
Thanks, Will.
I think the idea is that if the water flows through the system too quickly
it can't absorb the heat properly.
My Robert Shaw thermostat didn't perform any better than the lesser priced
NAPA 197. Just my experience.
Jim Gray
-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]On
Behalf Of Will Kooiman
Sent: Tuesday, May 20, 2008 9:57 PM
To: detomaso at realbig.com
Subject: Re: [DeTomaso] To thermostat or not to thermostat
I agree with Mikey about running the Robert Shaw 333-180 thermostat. There
aren't any downsides to running a thermostat - unless you get a cheapo
thermostat - which the Robert Shaw is not.
I don't buy the idea that you have to slow down the water or it won't cool
enough. It makes more sense to me that if you don't restrict the water,
it'll cool too much. So, in other words, if you're not running a
thermostat, and the engine is running too cool, put a smaller restrictor in
place. This only makes sense in a controlled environment - like dirt track
racing.
This is one of those topics that, in my opinion, we over analyze. Use a
proper thermostat so it'll stay hot enough. Get rid of the air in the
system. Make sure the fans are working properly. That's all it takes. Oh
yeah, stainless pipes/tanks and green stripe hoses, but that's more for
corrosion/leak protection - not cooling.
By the way, I haven't had a high pressure/swirl tank in over 4 years. I
haven't put many miles on my car the last year (mostly due to traveling for
work), but before that I drove it 1,000 miles a month. The only time it
overheated was when the fans stopped working - and that was in 100+ degree
weather in stop/go traffic, up hill, with no shoes on.
Will.
-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of MikeLDrew at aol.com
Sent: Tuesday, May 20, 2008 9:22 PM
To: jimgray at cableone.net; detomaso at realbig.com
Subject: Re: [DeTomaso] To thermostat or not to thermostat
In a message dated 5/20/08 18 45 54, jimgray at cableone.net writes:
> 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?
>
Yes, unless it is blocked off. Some aftermarket pumps block off that
passage. Some engine builders will hammer a plug into the orifice normally
blocked
by the 'hat'. In both cases, that then allows you to run a Windsor
thermostat.
Although thermostats are a possible failure point, a good quality thermostat
rarely fails, and their benefits far outweigh their liabilities IMHO. As
your engine builder pointed out, you can't run NOTHING there; a restrictor
of
some sort is needed to maintain appropriate pressure/volume.
I would suggest running a top-quality RobertShaw 351C thermostat (part
number
333-180 for a 180-degree unit), available from Summit and others.
Mike
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