kdoske

just use these $25.00 inline 15amp thermostats. When 180F is reached it acts as an inline switch and turns it on the device(s). Can't exceed 15amps with the model posted.

Derale In-Line Fan Control Thermostat with -6 AN Fittings - 180 Degrees Derale Radiator Fans D13021



You could have three options.

1. connect the thermostat to your pumps and have them shut the pumps on and off when 180 degrees is reached and don't use any fans.

2. have the pumps running all the time and connect the thermostat only to the fans.

3. connect everything to the thermostat.

Personally I would go option 1.


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As for the pumps I would go with Mocal Oil pumps. There are two main ones, one is rated at 300F and the other 350. When it comes to oil pumps the higher the temp rating the longer pump life you are gonna have.

300F oil Mocal Oil Pump:
http://www.racerpartswholesale.com/p...al_Cooler_Pump

- flow rate 1.0- 2.0 GPM and up to 54 PSI
- weight: 3.5 lbs
- 3/8" NPT fittings
- 8-amp current draw



350F oil Mocal Oil Pump: (probably over kill)
http://www.racerpartswholesale.com/p...al_Cooler_Pump

- 3 GPM @ 60+ psi
- 350f temp rating
- self-priming
- quiet low vibration operation
- 10,000 hour rated bearings & motor brushes
- hardened bronze pump (spur) gear rotors
- black anodized aluminum heatsink
- nickel plated pump head
- stainless pump head fasteners
- 3/8" NPT inlet/outlet
- high temperature internal wiring
- 3 foot wiring lead with (supplied) weatherproof connectors
- rubber-isolated mounting bracket and feet
- dimensions 6.2" x 4.1" x 4.0"