J's Racing Low Temperature Thermal Switch - Honda S2000 AP1 AP2

J's Racing Low Temperature Thermal Switch - Honda S2000 AP1 AP2

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J's Racing Low Temperature Thermostat - Honda S2000

Cooling fan activation at 80 (stock 95)

Cooling fan deactivation at 75 (stock 90)

There is a close relationship between the water temperature and engine power.

When the cooling water temperature reaches a certain point, in order to avoid possible risks, the ECU will make several changes including fuel increase and retarding the ignition point which will cause a reduction of engine power.

The purpose of this product is to maintain the maximum horsepower by keeping the temperature of the cooling water at around 75 – 80. It activates the fan at 80 instead of 95 and fully utilizes the water characteristics of high specific heat (Water changes temperature slowly for both upward and downward).  As a result, it works toward preventing power loss, knocking, and various thermal negative effects. It works well for all types of cooling system from the stock radiator to a multi layer racing radiator.

Furthermore, by setting the cooling fan activation point (80) and deactivation point (75) closer, it smoothes out the on-off flipping operation.

**Please contact for current availability prior to ordering**

**Please use it along with the low temp thermostat.  When used separately, it is not very effective.**

**Please use the proper tightening torque.**

**After the installation, bleed the air completely.**