OK to put temp senor in waterpump bypass line?

[Apex_speed]

Originally Posted by bingo2

I'm not certain what having a heater has to do with this. Put the tee in the other port on the intake manifold.

I have the Holley Sniper atop an Edelbrock Air Gap intake, which is a dual plane, and haven't experienced any issues.

Ok, how about we try this if you don't mind....where are the following located in your car?

1. Holley Sniper coolant temp sender?

2. Dash gauge coolant temp sender?

3. Heater return line?

[bingo2]

No heater. The CTS is located in the passenger side port where the heater valve would be located and the sender for the analog temperature gauge is in the driver side port. I originally had them installed opposite of their current location but, I changed to more efficiently route the wiring; readings were identical from either location. If I did have a heater, I would try the tee in the driver side port and if it didn't function to my satisfaction I would drill and tap another port as others have suggested.

[Apex_speed]

Originally Posted by bingo2

No heater. The CTS is located in the passenger side port where the heater valve would be located and the sender for the analog temperature gauge is in the driver side port. I originally had them installed opposite of their current location but, I changed to more efficiently route the wiring; readings were identical from either location. If I did have a heater, I would try the tee in the driver side port and if it didn't function to my satisfaction I would drill and tap another port as others have suggested.

Ok, thanks.

I'm going the path of least resistance for now. Holley sender on the right side and gauge sender on the left side as the Edlebreock Performance RPM manifold is drilled correctly for that.

I think I will look into an extension for the t-stat housing that is threaded for a sender as that would likely work well. I'm just not sure if it's physically possible in an SPF Cobra with a 351W block and the surge tank mounted at the top front of the engine.

[Gaz64]

Is there no room in the front water crossover to add a temp sender?

I would drill a hole, tap it 1/8 npt, and fit the sender.
That way you can see the engine warming up on all gauges.
Adding a sender after the thermostat, the gauge will barely work at all, then rise up, showing the thermostat operation.
Unless you want to see it that way.

Gary

[cycleguy55]

Originally Posted by Apex_speed

Ok, how about we try this if you don't mind....where are the following located in your car?

1. Holley Sniper coolant temp sender?

2. Dash gauge coolant temp sender?

3. Heater return line?

BTW, the fitting on the intake manifold is the hot coolant to the heater, and the heater return goes to the water pump.

[Gaz64]

Originally Posted by cycleguy55

BTW, the fitting on the intake manifold is the hot coolant to the heater, and the heater return goes to the water pump.

If you must use a heater hose, this is correct.

Using the return hose would be like placing it in the bottom hose, as the return from the radiator.