Essex Rotary Quick Vid 49 - Upgrading Your RX7 FD Fuel Pump Wiring

WORKING WITH FUEL IS DANGEROUS, IF YOU ARE NOT CONFIDENT WITH DOING THIS THEN SEEK THE HELP OF A PROFESSIONAL. WE CANNOT BE HELP RESPONSIBLE FOR ANY DAMAGE CAUSED BY IMPROPER PROCEDURES.
In this episode we continue our RX-7 FD fuel pump upgrade from Episode 41 ( www.youtube.co... ) and Episode 47 ( • Essex Rotary Quick Vid... )
After upgrading the fuel pump in the tank, we tackle the wiring needed to provide reliable power to these fuel pumps. While your stock wiring may still work, with age things can degrade, so it a popular upgrade to add a dedicated power feed to the fuel pump to ensure you get good power to your system when needed.
This part of the upgrade/modification is not that dificult, however good quality wire and parts are a must here, using cheap cable and components will not serve the purpose intended properly, leading to potential fuel delivery issues. pump failure or even a vehicle electrical fire.
Please remember that your fuel pump is what delivers the required fuel up to your fuel rail and injectors, an improperly installed or set up pump can cause major engine damage. If you are not confident in undertaking this procedure then re would recommend you seem the help of an experienced and trusted rotary specialist in your area.
Essex Rotary take no responsibility to damage cause to your vehicle when undertaking this upgrade. This guide it meant to aid in your understanding of the procedure only.
We are going to show you the steps needed and some tips to help make doing it yourself less hassle.
Tools and Parts You Will Need;
High Quality Wire (preferably not PVC coated, We recommend TXL or Tefzel jacketed wire.
High Quality 4 Pin Automotive Relay and relay base/socket
Open Barrel Splice/Crimps
A Crimp Tool suitable for your choice of splice or crimp
Wire Strippers - We are using Stripmasters
something to cut open the stock harness.
Insulating tape (for the joints) re use and recommend Kapton tape
Cable Ties for securing the cables in place when reinstalling everything
10mm Socket and Ratchet
another 10mm socket as you will lose the first
1 third 10mm socket as you will no doubt miss-place the backup 10mm
ALWAYs DISCONNECT THE BATTERY WHEN WORKING ON VEHICLE ELECTRICAL SYSTEMS
WORKING WITH FUEL IS DANGEROUS, IF YOU ARE NOT CONFIDENT WITH DOING THIS THEN SEEK THE HELP OF A PROFESSIONAL. WE CANNOT BE HELP RESPONSIBLE FOR ANY DAMAGE CAUSED BY IMPROPER PROCEDURES, IT DOES WITHOUT SAYING BUT WE WILL SAY IT ANYWAY, DO NOT SMOKE WHILE WORKING ON YOUR VEHICLES FUEL SYSTEM. KEEP ALL NAKED FLAMES OR SOURCES OF IGNITION AWAY FROM THE AREA AND WORK IN A WELL VENTILATED AREA. ALWAYS KEEP A FIRE EXTINGUISHER CLOSE.
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[@tofuworx]

What sort of hp levels and injectors can the stock fuel lines accomodate with the upgraded fuel pump and wiring like what was done to this car?

[@GwopUpEnt]

Why don’t you make videos anymore ?

[@essexrotary1540]

Sorry we have been disapointing our followers, we have been extremly busy, and filming and editing our video's can be very time consuming, specially as we started to create longer video's than when we started the channel. We do have a large backlog of footage we are working through to bring some new content. We actually have our 50th Quickvid about to drop soon. so watch this space.

[@kfnmacheeder3204]

What is the point of this? Just cleaning up the old shabby wiring? I believe you don’t need a relay if you rewire it at the fuse box. A much cleaner alternative.

[@essexrotary1540]

This is usually the accepter method to providing your fuel pump system with reliable power using cable that is designed to carry higher currents. if your re-wiring your system from the fuse box then this would be the perfect opportunity to install new heavy gauge wires. but not all owners are comfortable with doing this or capable of doing it in a reliable manner. With the age of the cars old original wiring and terminals/connectors can become high resistance points. This method means your removing a lot of those potential issues.