* Fuel lines: You'll need to run new fuel lines from the tank to the external pump and then from the pump to the engine. This involves routing the lines carefully to avoid heat sources and potential damage. You'll also need to use fuel-rated lines and proper fittings to prevent leaks.
* Pump selection: The external pump needs to be sized appropriately for your engine and driving style. Choosing a pump that's too small can lead to poor performance, while one that's too large might be unnecessary and potentially damaging.
* Pressure regulator: An external pump may require a pressure regulator to maintain the correct fuel pressure for your engine's fuel injectors. This is crucial to prevent engine damage.
* Wiring: You'll need to run new wiring from the pump to the vehicle's electrical system. This will involve splicing into existing wiring or installing a new circuit, ensuring proper fusing and grounding.
* Mounting: You'll need a secure and accessible location on the frame to mount the pump. Consider vibration and protection from the elements.
* Safety: Fuel is flammable, so meticulous attention to detail is essential to prevent leaks and fire hazards. Properly clamping and securing all fuel lines and connections is paramount.
* Legal Compliance: Modifications to the fuel system might not be compliant with local regulations. Check your local laws and regulations before proceeding.
In short: While technically feasible, it's a complex undertaking best left to experienced mechanics or DIY enthusiasts with substantial mechanical aptitude and experience working with fuel systems. It's significantly more involved than simply replacing the in-tank pump. The increased complexity and potential safety hazards make this modification not recommended unless you have specific performance or reliability needs that cannot be met by other means.
