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Running a thermostat with an electric water pump
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DRR Pro
Picture of Eman
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I've read posts where some on alcohol have installed thermostats to help with heat. I know my block has the bypass blocked at the WP on a SBC. I didn't know how it would work out with an electric pump. I guess drilling a couple of holes around the thermostat would work as a bypass so the pump wouldn't be deadheading. Has anyone done this?
 
Posts: 1447 | Location: E TN | Registered: February 13, 2009Reply With QuoteReport This Post
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Posts: 13522 | Location: NJ | Registered: August 20, 2000Reply With QuoteReport This Post
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Sure, I run a Thermostat and I drilled some small holes around it to get air out quicker and flow some water all the time. I also run a fan Thermostat to kick the fan on when it gets certain temperature. Trying to keep the temperatures in the range I want.


https://postimg.cc/gallery/np3zpruo/
"Dunning-Kruger Effect"
-a type of Cognitive bias where people with little expertise or ability assume they have superior expertise or ability. This overestimation occurs as a result of the fact that they do not have enough knowledge to know they don't have enough knowledge.

Before you argue with someone ask yourself, "Is this person mentally mature enough to grasp the concept of a different perspective?" If not there is no point to argue.

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Posts: 3948 | Location: United States of Texas | Registered: April 02, 2011Reply With QuoteReport This Post
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Stewart has one with holes in it already. I have one in my car.

https://www.stewartcomponents....ath=61&product_id=55



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Posts: 2902 | Location: KIEFER, OK. | Registered: August 17, 2007Reply With QuoteReport This Post
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Picture of Eman
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quote:
Originally posted by CURTIS REED:
Stewart has one with holes in it already. I have one in my car.

https://www.stewartcomponents....ath=61&product_id=55

Interesting how the drilled around the top. It also says only use with their modified water pumps, are using an electric pump?
 
Posts: 1447 | Location: E TN | Registered: February 13, 2009Reply With QuoteReport This Post
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Picture of CURTIS REED
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quote:
Originally posted by Eman:
quote:
Originally posted by CURTIS REED:
Stewart has one with holes in it already. I have one in my car.

https://www.stewartcomponents....ath=61&product_id=55

Interesting how the drilled around the top. It also says only use with their modified water pumps, are using an electric pump?


Yes. I have a Meziere pump on mine.



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Posts: 2902 | Location: KIEFER, OK. | Registered: August 17, 2007Reply With QuoteReport This Post
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quote:
Originally posted by Curly1:
Sure, I run a Thermostat and I drilled some small holes around it to get air out quicker and flow some water all the time. I also run a fan Thermostat to kick the fan on when it gets certain temperature. Trying to keep the temperatures in the range I want.

What fan switch at what temperature on and off?
 
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quote:
Originally posted by Eman:
quote:
Originally posted by Curly1:
Sure, I run a Thermostat and I drilled some small holes around it to get air out quicker and flow some water all the time. I also run a fan Thermostat to kick the fan on when it gets certain temperature. Trying to keep the temperatures in the range I want.

What fan switch at what temperature on and off?


I have a 170* Thermostat in water neck and fan Thermostat is set around 180*-185* Also have it on a fan switch so I can turn it off at the end of the day to build more heat and evaporate moisture out. With those and the leanout on my fuel pump I am able to control the heat pretty good.


https://postimg.cc/gallery/np3zpruo/
"Dunning-Kruger Effect"
-a type of Cognitive bias where people with little expertise or ability assume they have superior expertise or ability. This overestimation occurs as a result of the fact that they do not have enough knowledge to know they don't have enough knowledge.

Before you argue with someone ask yourself, "Is this person mentally mature enough to grasp the concept of a different perspective?" If not there is no point to argue.

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Posts: 3948 | Location: United States of Texas | Registered: April 02, 2011Reply With QuoteReport This Post
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https://www.summitracing.com/parts/hda-3651 I think this is the one I used.


https://postimg.cc/gallery/np3zpruo/
"Dunning-Kruger Effect"
-a type of Cognitive bias where people with little expertise or ability assume they have superior expertise or ability. This overestimation occurs as a result of the fact that they do not have enough knowledge to know they don't have enough knowledge.

Before you argue with someone ask yourself, "Is this person mentally mature enough to grasp the concept of a different perspective?" If not there is no point to argue.

4X NE2 CHAMPION. 2020 TDRA NE2 Champion
 
Posts: 3948 | Location: United States of Texas | Registered: April 02, 2011Reply With QuoteReport This Post
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quote:
Originally posted by Curly1:
https://www.summitracing.com/parts/hda-3651 I think this is the one I used.

What do you set it on? I have a Standard TS87 which from what I found on specs turns on at 178-192 and turns off at 160
 
Posts: 1447 | Location: E TN | Registered: February 13, 2009Reply With QuoteReport This Post
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quote:
Originally posted by Eman:
quote:
Originally posted by Curly1:
https://www.summitracing.com/parts/hda-3651 I think this is the one I used.

What do you set it on? I have a Standard TS87 which from what I found on specs turns on at 178-192 and turns off at 160


Around 180*-185*


https://postimg.cc/gallery/np3zpruo/
"Dunning-Kruger Effect"
-a type of Cognitive bias where people with little expertise or ability assume they have superior expertise or ability. This overestimation occurs as a result of the fact that they do not have enough knowledge to know they don't have enough knowledge.

Before you argue with someone ask yourself, "Is this person mentally mature enough to grasp the concept of a different perspective?" If not there is no point to argue.

4X NE2 CHAMPION. 2020 TDRA NE2 Champion
 
Posts: 3948 | Location: United States of Texas | Registered: April 02, 2011Reply With QuoteReport This Post
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Thanks. I'm looking at using the switch I have, should work.
 
Posts: 1447 | Location: E TN | Registered: February 13, 2009Reply With QuoteReport This Post
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A lot of customers run a thermostat when running alky. Not having a bypass will not hurt the water pump. I would start with 1 - 1/8" hole drilled in the flange of the thermostat. This hole helps to get air out of the system when filling and it will help your temperature gauge to ready more accurately.

You do not want to control a pump with a temperature switch like you do a fan. You always want the coolant moving in the block or you will not have a accurate reading on your coolant temps.


Meziere Tech.
Make sure your water pump is on whenever you check your coolant level.
 
Posts: 233 | Location: Escondido | Registered: July 01, 2011Reply With QuoteReport This Post
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Picture of Eman
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I wasn't looking at controlling the pump with a temp switch just the fan.
I looked at a Mr. Gasket thermostat and it looks just just like a Robertshaw like Stewart sells but without the holes drilled in it. Don't find any good things said about the Mr. Gasket thermostats.
 
Posts: 1447 | Location: E TN | Registered: February 13, 2009Reply With QuoteReport This Post



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I run the steward t stat in mine, 180*. Also Meziere water pump. Works great.


Mark Goulette
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www.livinthedreamracing.com
"Speed kills but it's better than going slow!"
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Posts: 1464 | Location: Back home in Alaska! | Registered: February 13, 2011Reply With QuoteReport This Post
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Picture of Mike Allred
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160 thermostat and running gas here. I ran a -6 bypass hose from under the t-stat to the water pump inlet to have water moving when the t-stat is closed. The CVS 55gpm pump had a small boss with a 1/2” NPT hole that was perfect for the bypass. I used a amoroso t-stat and H2O temps stay 160-162 when modulating.


Mike Allred
 
Posts: 276 | Location: Fayetteville, NC | Registered: March 10, 2004Reply With QuoteReport This Post
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If I remember right I drilled four holes about 1/8" which is probably more than needed.

On any electric pump (Fuel or Water) it is hard on them to Deadhead them. When they are working hard but not moving much draws more Amps and wears it out faster and gets hotter.

Those holes also help to get air out of your cooling system faster. Most with electric pumps do not run a Thermostat I think it is a good idea to run one if done right.


https://postimg.cc/gallery/np3zpruo/
"Dunning-Kruger Effect"
-a type of Cognitive bias where people with little expertise or ability assume they have superior expertise or ability. This overestimation occurs as a result of the fact that they do not have enough knowledge to know they don't have enough knowledge.

Before you argue with someone ask yourself, "Is this person mentally mature enough to grasp the concept of a different perspective?" If not there is no point to argue.

4X NE2 CHAMPION. 2020 TDRA NE2 Champion
 
Posts: 3948 | Location: United States of Texas | Registered: April 02, 2011Reply With QuoteReport This Post
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quote:
Originally posted by Curly1:

On any electric pump (Fuel or Water) it is hard on them to Deadhead them. When they are working hard but not moving much draws more Amps and wears it out faster and gets hotter.


Electric water pumps, being centrifugal pumps and powered by a small electric motor do not generate the pressure that a positive displacement pump like a fuel pump. You would be lucky to see 5psi out of any of the electric water pump on the market. They do not suffer from being deadheaded like a fuel pump would.


Meziere Tech.
Make sure your water pump is on whenever you check your coolant level.
 
Posts: 233 | Location: Escondido | Registered: July 01, 2011Reply With QuoteReport This Post
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Picture of Eman
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Just to follow up I put a NAPA 160* thermostat in and drilled 3 1/8" holes around the flange of it. I could watch and see the thermostat open on the gauge with the pump on. When filling the radiator with the pump on it had flow through the bypass holes I drilled going through the radiator.
 
Posts: 1447 | Location: E TN | Registered: February 13, 2009Reply With QuoteReport This Post
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I see absolutely no reason to run a thermostat in any race motor. If you need to use one to gain water temp your alky carb isn't setup correctly and it's too rich on the idle circuit! You can also install a leanout valve to let additional air in during warm ups. You should be able to control your water temp with the radiator fan!
 
Posts: 2136 | Location: Tewksbury, MA,USA | Registered: November 03, 2000Reply With QuoteReport This Post
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