Fuel pumps

In Tuning a car a very important element is the fuel system, it is thanks to it that we are able to ensure the correct composition of the fuel-air mixture, burning more of the mixture will generate more energy, thus increasing the power and torque of the drive unit.

Efficient pumps are the heart of the fuel system - we have fuel pumps from FMIC, Bosch, Walbro, Deatsch Werks, Aeromotive, all of which are available at great prices.

With a wide range of top-quality products FMIC.PL you will build a fuel system that meets your requirements.In our store you will find sporty, efficient pumps for internal and external installation applications. We encourage you to familiarize yourself with our products and choose the best pump model for your car

Tuning of the engine makes the demand for the amount of fuel increase, hence the originally installed pump becomes limiting and it is necessary to install a more efficient - tuning pump.

Pumps used in the most extreme designs are characterized by resistance to E85 type fuels, specially made seals make that even long-term operation on this fuel does not lead to loss of efficiency. An additional advantage of our offer is the availability of many innovative products in the form of dedicated Swirl Pot tanks, mounts or manifolds connecting a given pump model.

Our range of fuel system additives is rich in FMIC, Nuke Performance, Radium engineering products. You will find all categories of products with us, so as to build a professional system from amateur tuning products, to professional homologated motosport applications.

The large stock of goods means that we can deliver to you almost instantly. We invite you to familiarize yourself with our offer and purchase, if in doubt, our customer service offers advice and assistance in tailoring a customized system.

Electric fuel pumps

The task of electric fuel pumps is to deliver fuel from the tank to the fuel rail. The key aspect is to ensure adequate fuel pressure and flow, these are tasks that every pump must fulfill. There are two types of electric pumps an in-line so-called external pump and an internal pump, which is located inside the fuel tank. Both solutions carry a number of features, the consideration of which is a very important element at the stage of planning the fuel system. In our store we have a large selection of tuning products including pumps and accessories, which allow you to increase the performance of serially installed fuel supply systems or build them from scratch.

Internal pumps

The most common type are in-tank fuel pumps, Thanks to this solution, we are able to cancel out the noise that is generated by a high-performance pump. It is very important to ensure a high level of fuel in the tank so that the pump is constantly supplied with it, since the pump is not only lubricated with gasoline, but also cooled. Lack of adequate fuel can lead to fuel pump seizure. The basic condition for operation is its immersion in fuel. The pump being immersed in the fuel after starting starts pumping the fuel into the fuel line through the movement of the blades around the rotor, thus creating a swirling motion inside the pump.

External pumps

The use of an external pump is a very simple solution to increase the efficiency of the system, a big plus of this is that there is no need to interfere with the fuel tank and make modifications to the pump basket. External pumps are also the primary choice when building systems that include swirlpot tanks. Disadvantages of external fuel pumps include the need to find a place to mount them, while the installation of an external fuel pump is bornig when it becomes damaged, as access to it is very easy and service operations do not involve the need to remove other components.

Construction of Fuel Pumps

From the outside, the pump looks like a very simple device, but it is a complex and very precisely made component , so as to ensure maximum efficiency with relatively small dimensions. The basic element in the construction of any pump is its impeller.It is thanks to its movement that the pump is able to transfer fuel, which flows around it, thanks to its specially developed design provides minimal pulsation, and quiet operation. A key aspect of trouble-free operation is the impeller, it is its quality and balance that directly determines the culture and quality of operation, even minimal imbalance can cause vibration. which will be audible in the cabin.

In order for the pump to be characterized by long, reliable operation, it is necessary to use long-life brushes and choke coils that take care of nullifying electro-magnetic interference. The flow of fuel from inside the pump to the fuel lines is directed through a check valve, whose task is to maintain pressure in the system and block the return of fuel.

The most common fuel pump failures

A pump malfunction can lead to very serious consequences, so it is very important to react to even the smallest symptoms signaling a malfunction, and even to systematically check the fuel pressure produced by the pump.

The most common reasons for short pump life are contamination of the fuel tank with dirt and lack of fuel lubrication due to driving with too little fuel in the tank, or lack of adequate protection against fuel overflow under heavy loads. When installing a new fuel pump, the priority is to make sure the tank as well as the entire fuel system is clean, as fuel returning to the tank can also transport dirt. The tank can contain contaminants and even rust, so it is important to check its cleanliness and clean it periodically. Always make sure to use fuel filters of reputable brands, and remember to replace them according to the manufacturer's recommendations, only then can you be sure that your pump will provide long trouble-free operation and avoid problems. It is also very important to take care of the electrics around the pump. Overheating contacts, faulty electrical connections, lack of grounding or too low a voltage applied to the pump can lead to loss of efficiency and even damage to the pump.

Symptoms of pump damage are :

Problems with starting the engine

Engine stalling after starting

Jerking during acceleration

Reluctant revving, or limited engine power

Problems with the pressure on the injection rail

Uneven engine operation affecting poor driving comfort

Abnormal sounds from around the pump

These symptoms occur when there is a decrease or complete lack of pressure generation by the pump. They can lead to very serious failures, hence a quick reaction in case of any symptoms of abnormal operation and stopping driving is very important. In extreme cases, the piston bottom can even burn out, caused by too poor a mixture delivered to the combustion chamber and an increase in EGT.