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Q: How much of a temperature difference with MPC?
A: The water mist produced by MPC nozzles will lower the air temperature 15-20 deg. F. The cooling effect is greatest in low humidity, high temperature environments.

Q: How difficult is the MPC system to install?
A: On a scale of 1-10, with 1 being easy, installation rates a 4. You must be comfortable with installing mechanical components and know how to connect electrical devices to the vehicle's electrical system. Installing a car stereo is about the same difficulty level. This is a DIY project for the home mechanic. Installation time is approximately 3-4 hours.

Q: What energizes the system?
A: The basic MPC kit includes a driver-operated toggle switch to activate the pump. If needed, there are optional temperature and pressure switches available to automatically activate the system for specific cooling situations.

Q: How much electrical power does the system use?
A: The system has low current requirements; approximately 4 amp.

Q: What else can MPC cool in my vehicle?
A: Anything that gets too hot. Directing a water mist onto an oil cooler, coolant radiator or AC condenser increases the efficiency of that particular system.

Q: What is the ideal environment for mist cooling?
A: The best environment is one that promotes fast mist evaporation; hot and dry weather, usually always found under the hood of a car.

Q: How long will the water supply last? Will I have to carry a lot of water?
A: Each red nozzle delivers approximately 1 gallon of fluid for 1.5 hours. Using two red nozzles, the included 2.5 gallon reservoir will last for approximately 1.5 - 2 hours under continuous use. The cream color nozzles consume approx. 1 gal/45 minutes.

The prototype system in the track car contains a total of 4 nozzles; two brake nozzles and two intercooler nozzles. With a system capacity of 1 gallon, the water supply lasts approximately 22 minutes of track time.

Q: What kind of water should I use in the system?
A: Regular drinking water is recommended; the type labeled "filtered drinking water" or water filtered by the "RO" method (reverse osmosis), commonly used in undersink filters. Avoid using distilled or deionized water as this attacks metal surfaces.

Q: Does MPC require high maintenance?
A: No. Other than checking water levels periodically, the only other maintenance is to periodically inspect the see-through reservoir filter. The pressure accumulator should also be checked every 3 months for adequate pressure. It can be repressurized with any air source suitable for tires.

Q: Will the misting nozzles clog?
A: MPC resin nozzles are more resistant to clogging than comparable stainless steel and brass nozzles; important in a low maintenance system. In addition, there is an inline filter between the reservoir and the pump and a filter screen inside the nozzle as an added barrier to clogging. Both are user-serviceable.

Q: I've got an RV and want to cool a large area. How many nozzles can I use?
A: Given an adequate water supply, you can use as many nozzles as the situation permits. For an RV or any mobile vehicle, MPC is the only answer when air conditioning is not an option.

Q: Will the MPC pump be damaged if the fluid reservoir becomes empty?
A: Unlike the pumps used in other water mist systems, an MPC pump can run dry without damage. However, prolonged operation without water is not recommended.

Q: Where can I mount the pump/pressure accumulator assembly?
A: Due to the versatility of the system, the pump/pressure accumulator can be mounted in any area of a vehicle. For increased flexibility, the two components can be mounted in separate locations and connected with a longer hose. Other water mist systems require mounting the pump below the water supply for proper system priming. The MPC pump has no such installation limitation.

Q: What does the MPC system weigh?
A: MPC system components total 8 pounds dry. As water weighs approximately 8 pounds/gallon, a full 2.5 gallon reservoir will weigh 21 pounds. However, components can be installed in any location, and if desired, multiple fluid reservoirs can be used to optimize weight distribution.

Q: How can I keep the fluid from freezing?
A: To prevent system damage from freezing, treat the MPC system like the windshield washer system. Use a mixture of alcohol and water (same constituents as commercial windshield washer fluid).

Q: Can I use the MPC system to inject a water mist into my engine for intercooling?
A: Water injection can provide a margin of safety to reduce the likelihood of engine-damaging detonation - especially critical in turbocharged or supercharged engines running high levels of boost. The basic components of an MPC system are ideally suited for this purpose. However, the resin nozzles are not ideal for this application. Special-purpose nozzles may be available in the future. Please inquire.

Q: Why spray an intercooler?
A: The process of pressurizing the intake air with a supercharger or a turbocharger increases horsepower and torque. This process also increases the charge air temperature. High temperatures inside the combusition chamber can lead to detonation, an uncontrolled explosion whose shock waves can break piston rings and pistons. An intercooler helps reduce the temperature of the compressed air/fuel mixture which reduces the tendency to detonate. With a reduced tendency toward detonation, engine life increases. In addition, with this added safety margin, an engine tuner can increase the boost pressure for additional power.

Intercooling, or spraying a water mist directly inside the engine, is one method of reducing detonation. Using MPC to spray a fine mist on the exterior of an intercooler can also increase its heat reduction efficiency. During regular engine operation, the intercooler acts as a large heat sink, absorbing heat from surrounding engine components. The MPC mist reduces the heat in the intercooler which reduces heat transfer to the intake air.

Q: Is there a device that recognizes engine boost to automatically spray my turbocharger intercooler?
A: An optional, adjustable pressure sensor automatically energizes the system whenever the engine develops boost pressure. We recommend remotely mounting the pressure sensor for easier access and a cooler operating environment.

Q: Can I automatically energize the system according to temperature?
A: Yes. Another switching option is an adjustable thermostatic switch that can energize the nozzle circuit depending on the desired temperature turn-on setting. Thus, if the oil temperature becomes marginal, the MPC system can begin spraying an oil cooler or coolant radiator at the desired switch-on temperature setting. MPC can also increase the efficiency of an air conditioning condenser.

Q: Can I have branch circuits cooling different parts in my vehicle?
A: Yes. Order the solenoid valve kit to independently control a branch circuit from the pump. For example: Use the pump switch to mist the radiator and an independent branch circuit to cool the intercooler.

Q: What's the purpose of the quick-disconnect fluid hose assembly?
A: The MPC quick-disconnect hose assembly allows quick and convenient water reservoir/filter removal for easy filling and service and with no-drip water loss.

Q: Why use a collapsible fluid reservoir?
A: Although any type of fluid storage container can be used, the collapsible bag is rugged, lightweight and can fit in odd shaped spaces in a vehicle.

Q: How do I use MPC to cool my brakes?
A: To reduce brake system temperatures, direct a misting nozzle into each brake cooling duct. Do not spray the brake components directly as this will create steam rather than reduce air temperature. The nozzle circuit is energized by using the existing brake pedal brake/master cylinder switch. This results in a water mist only when the brake pedal is depressed. Brake cooling application

Q: Can I use MPC for personal cooling?
A: Since the water mist lowers air temperature approximately 15-20 degrees, the MPC system can be used to create a more comfortable personal environment, ideal for open air vehicles where air conditioning or 110VAC is not available. This includes fork lifts and other warehouse vehicles, tractors, golf carts, off-road vehicles, wheelchairs or any other mobile vehicle.

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