A break. Think about what you’ve forgotten. There is rust in the wheel well. Bald marks on the tires. Mechanical water pump. This is the invisible part. Basic. Underrated. Without this, the engine will overheat. It grinds to a halt. All you’ll be left with is expensive towing costs and a broken dream.
Of course, mechanical pumps are smart. However, they come with a tax.
Enter the electric water pump. It runs on electricity. These benefits may shock you.
How does a mechanical water pump pump water out of the engine?
To understand why someone would change a working system, you need to know what’s wrong with the default system. Automotive engineers call this the “water pump”. Technically, this is a circulation pump for coolant and antifreeze. It’s the same thing.
It is belt driven. Or it can be cam operated. Take the mechanical rotational energy from the engine. A rotating rubber belt provides power. The pump uses this energy to drive its internal mechanisms. The impeller transports coolant during the winding journey. Passes through the engine block. absorbs heat. Next, move on to the radiator. Dissipates heat. Go back through the pump.
This keeps a typical engine at a comfortable 200 degrees Fahrenheit (93.3 degrees Celsius). everyone is happy. So why mess with perfection?
This is due to parasitic loss.
Belt accessories consume horsepower. Fuel efficiency may decrease. Or both. You can feel it when you turn on the air conditioner. The engine works harder. Belt-driven AC compressors are constantly consuming power. The same energy consumption occurs with water pumps. All the time.
Do you think you can save fuel by turning off the air conditioner? The water pump is still stealing power.
Thermodynamics of an electric water pump
Here’s the question. If you switch to an electric water pump, won’t the alternator charge the battery more? The laws of thermodynamics say that energy can neither be created nor destroyed. Where did this loss go?
In a few words? You probably won’t notice.
This law is still in force. But things have changed.
Mechanical pumps rotate at engine speed. Always. Even when the engine is cold. Even at idle. Coolant is pumped when the engine does not require it. It’s a waste of energy.
In some cases, additional cooling may be required. Hard driving. A hot day. You turned off the car. The mechanical pump stops. However, the engine components is still hot. Stress. Wear. It deteriorates faster.
Electric water pumps are a game changer. Manufacturers can set exact coolant flow rates. Depending on the temperature. It is not due to engine speed.
It’s more efficient. Better suited to engine-specific needs.
Is an electric water pump right for you?
There is one downside. they are not that strong. The flow rate is lower. They cannot move coolant as quickly as mechanical devices.
That is why it is marketed to racers. On legal tracks. road course.
Some people are concerned about durability. The conditions are tough. daily driving. Sports car forums tell a different story. Reliable performance over the long term.
The gains? 3-10 horsepower. The number is small. But they add up.
If you are considering this, please contact a mechanic. Check the warranty. Please note that installing an electric water pump may void your vehicle’s warranty.
You can get more ponies depending on your how you drive. Better MPG. It can extend the life of the engine. Less stress.
Frequently asked questions about Electric Water Pump
Can I drive my car without a water pump?
No. Without a water pump, your engine will overheat quickly. They slowly stopped. It’s ugly. It’s expensive.
Does an electric water pump increase horsepower?
Not in a way that you immediately notice. Eliminates parasitic loads on the belt. It doesn’t need belt power. Works on battery power. The result is a slight gain. 3-10 horsepower.
How does an electric water pump work?
It’s the same principle. The impeller transfers coolant to the engine block. absorbs heat. Transfer it to the radiator. Dissipates heat. Back to the pump. However, the driving source is electricity. It is not mechanical.
What are the advantages of electric water pumps?
Precision. Manufacturers regulate coolant flow based on temperature range. It is not due to engine speed. It’s efficient. Perfectly meets your cooling needs.
What is the difference between an electric water pump and a mechanical water pump?
power source. Belts are used in mechanical pumps. They draw engine power. Electric pumps use batteries. Eliminate parasitic loss.
