
Tanks Inc. has been offering its PA Series EFI Gas Tank Conversion Module for over 20 years, allowing users to retrofit an internal fuel pump into their original gas tank. The kit includes everything needed to install an internal fuel pump into nearly any tank, including a reservoir tray that prevents fuel pump starvation. The pumps can run up to 100 PSI and deliver varying amounts of fuel depending on the pressure. Installation involves marking and drilling holes, cutting brackets, and test-fitting the pump assembly. Tanks Inc. provides detailed instructions, and users have reported that the installation process is straightforward and worth the cost.
| Characteristics | Values |
|---|---|
| Brand | Tanks Inc. |
| Product | PA Series In-Tank Fuel Pump Module |
| Use | Retrofit an internal fuel pump into your original gas tank |
| Compatibility | Nearly any tank |
| Features | Reservoir tray that eliminates fuel pump starvation |
| Benefits | Eliminates common issues with external fuel pumps such as vapor lock and cavitation |
| Performance | Capable of running up to 100 PSI with varying fuel delivery depending on pressure |
| Estimated Max HP Ratings | 60, 70, and 7 PSI |
| Pump Manufacturer | Walbro (TI Automotive) |
| Pump Quality | High-performance, OE-validated, and efficient |
| Assembly Requirements | Minimum tank depth of 6 inches, maximum of 11.5 inches without modification |
| Kit Inclusions | Everything needed for installation |
| Installation Steps | Drilling access hole, marking and drilling small holes, cleaning out filings, cutting bracket to fit tank slope, pump assembly, etc. |
| Customer Feedback | Detailed instructions, good fit, worth the cost |
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What You'll Learn

The PA Series EFI Gas Tank Conversion Module
Tanks Inc.'s PA Series EFI Gas Tank Conversion Module has been used for over 20 years to retrofit non-EFI gas tanks with internal fuel pumps. The module can be used to retrofit an internal fuel pump into your original gas tank. The kit provides everything you need to install an internal fuel pump into almost any tank.
The PA Series fuel pump kit features a reservoir tray that prevents fuel pump starvation, which is a common issue with non-baffled tanks. A properly installed internal fuel pump will eliminate problems associated with external fuel pumps, such as vapour lock and cavitation. The pumps can run up to 100 PSI and deliver varying amounts of fuel per hour depending on the pressure. Tanks Inc. provides estimated maximum HP ratings at 60, 70, and 7 PSI to help guide you in choosing the correct pump for your installation.
The PA series fuel pump assemblies feature a female 1/4" NPT fitting on the top plate. When converting your tank to fuel injection, ensure that your tank is properly vented. A rollover vent valve will need to be threaded into the PA pump assembly.
Tanks Inc. uses Walbro high-performance pumps in their fuel injection modules. Walbro is an OE-validated pump manufacturer that supplies products for two-thirds of the vehicles produced globally. Walbro's patented dual-channel deep pocket pumps offer high flow volumes with superior efficiency in handling hot fuel and recovering from aeration compared to competitors.
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The kit's components and their uses
The Tanks Inc. PA Series fuel pump kit is a comprehensive solution for retrofitting an internal fuel pump into your original gas tank. The kit includes everything needed to install an internal fuel pump into almost any tank, offering a range of benefits and improved performance over external fuel pumps.
One of the key components of the kit is the reservoir tray. This tray is designed to prevent fuel pump starvation, a common issue with non-baffled tanks. By ensuring a consistent fuel supply to the pump, the reservoir tray helps maintain optimal performance and eliminates the risk of fuel starvation during acceleration or cornering.
The kit also includes a high-quality fuel pump, capable of delivering fuel at pressures up to 100 PSI. The pump is designed to handle high flow volumes and efficiently manage hot fuel, thanks to its internal bypass channel. The pump's efficiency also extends to fuel recovery from aeration, further enhancing its performance.
Additionally, the PA Series fuel pump assemblies feature a female 1/4" NPT fitting on the top plate. This fitting is essential for proper venting when converting your tank to fuel injection. The kit also includes a rollover vent valve that threads directly into the PA pump assembly, ensuring proper ventilation during fuel injection.
The Tanks Inc. PA Series fuel pump kit is designed with flexibility in mind. It can be assembled to fit a wide range of tank depths, from a minimum of 6 inches to a maximum of 11.5 inches without modification. This adaptability makes it a versatile solution for a variety of vehicles and applications.
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Preparing the tank for installation
Firstly, it is important to clean the tank thoroughly. This step ensures that any debris, residue, or contaminants are removed before drilling or cutting any holes. A clean work area will help prevent issues during the installation and ensure the fuel pump functions optimally.
The next step is to mark the locations for drilling. Using a ruler or a measuring tape, carefully measure and mark the spots where you will be drilling or cutting holes. For the Tanks PA fuel pump, you will need to mark a 4.5-inch hole for the access hole. Additionally, mark 16 small holes for drilling, as these will be necessary for the fuel pump assembly. It is imperative to be precise during this step to avoid any misalignments later in the installation process.
Once the markings are complete, proceed with drilling or cutting the holes. Use the appropriate power tools for this step, ensuring that you are wearing the necessary safety gear, including eye protection and gloves. Drill or cut through the marked spots, creating holes that will accommodate the fuel pump assembly. Remove any filings or debris that result from the drilling or cutting process.
After creating the holes, the bracket-fitting process can begin. Measure and cut the bracket to fit the slope of your tank. This step ensures that the fuel pump assembly has a secure and snug fit within the tank. Test-fit the bracket to ensure it aligns correctly with the holes and makes any necessary adjustments.
Finally, with the tank cleaned, holes drilled, and bracket fitted, you are now ready to assemble the fuel pump. Refer to the Tanks PA fuel pump kit instructions for detailed guidance on assembling and installing the fuel pump into the prepared tank. Remember to follow all safety precautions and best practices during the assembly and installation process.
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Installation instructions
The PA Series fuel pump kit can be used to retrofit an internal fuel pump into your original gas tank. The kit contains everything you need to install an internal fuel pump into nearly any tank.
Before beginning the installation, ensure that your tank is properly vented. This is essential when converting your tank to fuel injection. The rollover vent valve will thread right into the PA pump assembly.
The assembly requires a minimum tank depth of 6 inches and a maximum tank depth of 11.5 inches with no modification. The pump should be placed at the back of the tank, as per the instructions, to ensure that it gets fuel under hard acceleration. The baffle should be placed lengthwise to prevent the pump from starving under cornering.
The PA Series fuel pump kit features a reservoir tray that eliminates fuel pump starvation, which is common in non-baffled tanks. A properly installed internal fuel pump will eliminate issues common in external fuel pumps, such as vapor lock and cavitation.
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The benefits of a properly installed internal fuel pump
A properly installed internal fuel pump can provide several benefits that improve a vehicle's performance and fuel efficiency.
Firstly, internal fuel pumps are more reliable than external ones. They are less likely to malfunction and cause issues such as struggling to maintain speed, engine sputtering, or the "check engine" light illuminating. A well-functioning internal fuel pump ensures consistent fuel delivery, preventing internal engine problems and hesitation during vehicle startup or acceleration.
Secondly, internal fuel pumps, particularly electric ones, offer increased fuel efficiency. They enable more precise fuel metering through the vehicle's electronic control unit (ECU), resulting in reduced fuel consumption. This saves money for the consumer by lowering the frequency of fill-ups.
Additionally, internal fuel pumps facilitate easier engine starting. Unlike carbureted vehicles that require pushing the gas pedal to start, fuel-injected vehicles with internal pumps do not need this extra step. This convenience also translates to improved engine power. By ensuring a sufficient fuel supply to all cylinders, internal fuel pumps enhance the engine's power output, allowing the cylinders to reach their maximum potential.
Furthermore, the placement of the internal fuel pump within the fuel tank acts as a safety measure. Submerging the pump in fuel or coolant liquid helps regulate its temperature, reducing the risk of overheating. Additionally, this setup minimizes the chance of fire or explosion. While electrical components can spark and ignite fuel vapors, liquid fuel is less susceptible to explosion, making the internal fuel pump's location a strategic safety choice.
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Frequently asked questions
The PA-Series fuel pump by Tanks Inc. is used to retrofit an internal fuel pump into your original gas tank.
The PA-Series fuel pump kit features a reservoir tray that eliminates fuel pump starvation. A properly installed internal fuel pump will also eliminate any issues that are common on external fuel pumps such as vapour lock and cavitation.
The kit includes everything needed to install an internal fuel pump into nearly any tank. It features a rollover vent valve that threads into the pump assembly, and a female 1/4" NPT fitting on the top plate.
The pumps are capable of running up to 100 PSI and deliver varying amounts of fuel per hour depending on the pressure. The flow rates are rated at 13.5 volts, and the pumps are designed to fit tanks with a minimum depth of 6 inches and a maximum depth of 11.5 inches without modification.











































