MEZIERE TH400 Transmission Cooling Pan With Heat Exchanger

This custom built transmission pan is used to regulate fluid temperature. It has a heat exchanger built into the bottom of the pan that is hooked into the vehicles coolant system. This system has proven extremely effective when consistency of the vehicle is key.

By applying what Meziere have learned by their extensive knowledge of cooling systems, they have created a new method of cooling transmission fluid as well as preheating it to a suitable level before each run. This new deep transmission pan for TH400 transmissions acts as a fluid temperature stabiliser and offers more consistent temperature for more consistent runs. Meziere’s testing data shows that the warm-up cycle of the engine raised the transmission to within 15 degrees of engine temperature. That is, when exiting the staging lanes with an engine temperature of 165, the observed transmission temperature was 150. Likewise, on the cool down cycle their data showed that the transmission fluid would drop temperature within 10 degrees of the engine. That is, the observed engine temperature at the end of the run was 205 and the transmission was 215. The transmission quickly dropped to within 5 degrees of engine temp and followed the coolant temperature all the way to 150. The heart of the system is Meziere’s revolutionary new transmission pan. It has similar dimensions to a standard deep TH400 transmission pan but then add a water passage that runs through the base of the pan. This passage allows the water that is being cooled by the radiator to also remove heat from the transmission fluid.

The next step is to configure your vehicle so that a small amount of flow is diverted from the radiator and directed through the pan. To do this you must identify the low pressure and high pressure sides of the cooling system and tap into each. By introducing a pressure differential across the cooling jacket of the pan, water will flow through it. Remember the pump is the “motivator” of the coolant through the system, so the high pressure area is found just after the impeller of the pump and the low pressure area is found just before it. For testing purposes, Meziere tapped into one of the legs of the water pump for high pressure and sent the return water to low pressure found in one of the tanks of the radiator. Careful selection of connection points can make this job fairly painless. Run 2 hoses an -6 or equivalent and you are set.

Overview

• Supplier Description: TH400 Transmission Cooling Pan With Heat Exchanger
• Supplier Finish: Polished
• Supplier Part Number: WTP320
• Supplier: Meziere

Technical Specifications

• Billet pan carved from a solid block
• Fits TH400 Transmission
• O-ring seal to the transmission eliminates pan gasket
• Filter spacer included
• Pan depth is 2.5″
• Pan weight is 7.1lbs (3.22kg)
• Great for high horsepower drag applications
• Great for cars running several classes in one day
• Required 3rd party components – Must use ATI Mopar Filter Relocation Kit part numbers 403614 and 403614A

Additional Notes: For an easy high pressure connection location see part #WP155 pump center section.

Here at Serck Motorsport, we supply and distribute many premium brands for your performance race car having used them ourselves!

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