[DeTomaso] Bypass (Re: thermostats)

[John Taphorn]

Barry

I've assumed that the Stant flows superiorly.  However, I would like to make 
a comparison test.  Other than measuring the speed in which a caldron of 
boiling water is drained, I'm unsure how to conduct the test.

Although, I am confident that Goran may have a solution.

I'd like to buy the Stant from you, let me know your price.

Thanks
JT
----- Original Message ----- 
From: "Barry Seib" <oldwheel at mts.net>
To: "DetomasoList" <detomaso at realbig.com>; "Asa Jay Laughton" 
<asajay at asajay.com>
Sent: Wednesday, June 24, 2009 11:18 AM
Subject: [DeTomaso] Bypass (Re: thermostats)


> It doesn't matter which location you block. I put an expansion plug in the
> center of the copper disc in the engine outlet. Others use a thin sheet to
> block the bypass at the pump joint gasket. Either way, you are eliminating
> the leakage of hot coolant back into the engine without going  to the rad.
> Some aftermarket pumps don't even have a bypass passage. My flowkooler has
> the bypass, so I had to block it.
>
> When the Cleveland style stat is fully open (hot) the foot on it still
> allows some coolant to flow back to the engine, bypassing the rad. In 
> theory
> this should be an insignificant amount, but in a marginal system with long
> pipes, I wonder how much it contributes to the issue? I looket at the gap
> and it seemed like it would be a loss. I'm using NPGR coolant, so I want 
> the
> absolute maximum flow I can get. If I have to convert back to ehylene
> glycol, my cooling system will be optimised already.
>
> Barry
>
> ----------------------------------------------------------------------------
> ----
>
> Okay, so if a person uses a remote bypass thermostat, what do you do
> with the thermostat area in the block?  There is a bypass passage
> where the thermostat goes which the -special- 351C thermostat closes
> when the stat is fully open.  So do we block that?  Or must you make
> the water pump mod instead, which installs a small shim of steel to
> block the recirculation path?
>
> Pardon me for my confusion, I'm not studying this very hard.  (trying
> to get some real work done in between emails)
>
> Asa Jay
>
> Quoting Barry Seib <oldwheel at mts.net>:
>
>> Jack
>>
>> I bought a very good remote bypass thermostat from Evans Coolant(E3005
>> Remote by-pass thermostat 195°)
>> http://www.evanscooling.com/main1.htm - go to catalog then Thermostats 
>> and
>> caps. $99.95  I'm quite happy with it.
>>  It is made by Behr in Germany and has the least restriction I could find
> in
>> a remote bypass stat. Evans said it was about the same restriction as the
>> high flow Robert Shaw type in the engine. I previously special-ordered 
>> the
>> Stant model 135478 that was recommended in John's article, but found it
>> lacking in flow capacity. I still have it new in the box if anyone wants
> to
>> use it.
>>
>> Barry
>>
>
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