Aeromotive 18309 Fuel Pump System, Dual Phantom 340 Universal In-Tank User Manual

Product Overview

The Aeromotive 18309 Dual Phantom 340 Universal In-Tank Fuel Pump System is a high-performance aftermarket component designed for fuel delivery. It features two 340 LPH (liters per hour) Stealth Fuel Pumps, an additional set of electrical bulkheads, and a larger capacity foam and bladder. This system is engineered to support significant horsepower while maintaining quiet operation. Its design allows for installation within a stock fuel tank without requiring welding or extensive fabrication.

The dual pump setup enables an on-demand fuel system, which helps reduce returned fuel volume and tank temperature, mitigating issues like vapor lock and cavitation. This redundancy also makes it suitable for extreme conditions such as off-road, desert, and endurance racing.

Figure 1: Components of the Aeromotive 18309 Dual Phantom 340 Universal In-Tank Fuel Pump System. This image displays the main assembly, two fuel pumps, various clamps, bolts, nuts, electrical connectors, and foam baffling.

Setup and Installation

Installation of the Aeromotive 18309 system requires careful attention to detail and adherence to proper automotive practices. It is recommended that installation be performed by a qualified professional.

Key Installation Considerations:

• Tank Compatibility: The modular design allows the unit to be cut to height, enabling fitment into a wide range of fuel tanks. Ensure precise measurements are taken before any modifications.
• In-Tank Use Only: This system is designed exclusively for in-tank applications. Do not attempt to use it as an external or inline pump.
• Electrical Connections: The system includes separate electrical bulkheads for each pump. Proper wiring is crucial for optimal performance and safety. Consult a wiring diagram if unsure.
• Fuel Line Connections: The top hat features four ORB-06 ports: two for supply, one for return, and one for vent. Ensure all fuel lines are securely connected and free of leaks.
• Baffling and Foam: The larger capacity foam and bladder are designed to combat fuel slosh and ensure consistent fuel supply to the pumps, especially during dynamic driving conditions. Ensure these components are correctly installed within the tank.

For detailed, step-by-step installation instructions, please refer to the official Installation Manual (PDF) provided by Aeromotive. A link to this document may be found on the product's official support page or included with the product packaging.

Note: Always disconnect the vehicle's battery before beginning any electrical work. Ensure the fuel tank is drained and properly ventilated to prevent fire hazards.

Operating Principles

The Dual Phantom 340 system operates by utilizing two high-performance 340 LPH Stealth Fuel Pumps. This dual-pump configuration offers several operational advantages:

• High Horsepower Support: The combined flow rate of the two pumps is capable of supporting high horsepower applications, whether EFI (Electronic Fuel Injection) or carbureted, and with or without forced induction.
• On-Demand Fuel Delivery: Separate electrical bulkheads allow for independent control of each pump. This enables an "on-demand" fuel system, where one pump can operate during normal conditions and the second pump can be activated when higher fuel flow is required (e.g., under boost or high RPM).
• Reduced Fuel Return and Tank Temperature: By operating pumps on demand, the amount of fuel continuously circulated and returned to the tank is reduced. This helps to maintain lower fuel temperatures within the tank, which is critical for preventing vapor lock and cavitation, especially in high-performance scenarios.
• Redundancy: In extreme conditions, such as off-road or endurance racing, the dual pump setup provides a crucial layer of redundancy. If one pump experiences an issue, the second pump can potentially maintain fuel delivery, preventing complete system failure.
• Quiet Operation: Despite its high performance, the turbine pump mechanisms are designed to operate quietly, similar to original equipment (OE) pumps.

Maintenance

Proper maintenance ensures the longevity and optimal performance of your Aeromotive fuel pump system. While the system is designed for durability, regular checks are recommended.

• Fuel Quality: Always use high-quality, clean fuel. Contaminants in fuel can significantly reduce the lifespan of fuel pumps and clog filters.
• Fuel Filter Replacement: Regularly inspect and replace your fuel filter(s) as per your vehicle's or system's recommended intervals. A clogged fuel filter can strain the fuel pumps and lead to reduced performance.
• System Inspection: Periodically inspect all fuel lines, connections, and electrical wiring for signs of wear, leaks, or corrosion. Address any issues promptly.
• Tank Cleanliness: If the fuel tank is ever opened, ensure it is clean and free of debris before reassembly.
• Professional Check-ups: Consider professional inspection of your fuel system during routine vehicle maintenance, especially if you notice any changes in performance or fuel delivery.

Troubleshooting

If you experience issues with your Aeromotive fuel pump system, consider the following common troubleshooting steps. Always prioritize safety and consult a professional if you are unsure.

If these steps do not resolve the issue, it is recommended to contact Aeromotive customer support or a certified automotive technician.

Specifications

Warranty and Support

Aeromotive products are manufactured to high standards. For specific warranty information regarding the Aeromotive 18309 Fuel Pump System, please refer to the warranty documentation included with your product or visit the official Aeromotive website.

For technical support, product inquiries, or assistance with troubleshooting beyond the scope of this manual, please contact Aeromotive customer service directly. You can often find contact information and additional resources on the official Aeromotive Brand Store or their corporate website.