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The Toyota Supra is a beloved sports car known for its performance and tuning potential. One of the upgrades that enthusiasts often consider is replacing the fuel pump to support increased horsepower and efficiency. The DeatschWerks DW300 is a popular choice among Supra owners looking to enhance their vehicle’s performance. In this article, we will provide a step-by-step guide on how to install the DeatschWerks DW300 fuel pump in a Toyota Supra, along with the performance benefits of this upgrade.
Tools and Materials Needed
- DeatschWerks DW300 fuel pump
- Fuel pump installation kit
- Socket set
- Wrenches
- Wire cutters/strippers
- Electrical tape
- Safety glasses
- Gloves
- Shop towels
Step 1: Safety First
Before starting the installation, ensure that you are wearing safety glasses and gloves to protect yourself from fuel and debris. Work in a well-ventilated area and have shop towels handy to clean up any spills.
Step 2: Relieve Fuel Pressure
To prevent fuel from spraying during the installation, you need to relieve the fuel pressure. Start by locating the fuel pump fuse in the fuse box and remove it. Then, start the engine and let it run until it stalls. This will relieve the pressure in the fuel lines.
Step 3: Access the Fuel Pump
Next, you will need to access the fuel pump, which is located in the fuel tank. To do this, remove the rear seats to expose the access panel. Unscrew the panel and carefully lift it to reveal the fuel pump assembly.
Step 4: Disconnect the Fuel Lines
Once the fuel pump assembly is exposed, carefully disconnect the fuel lines. Use a fuel line disconnect tool if necessary. Be prepared for some residual fuel to spill, so have your shop towels ready.
Step 5: Remove the Fuel Pump Assembly
With the fuel lines disconnected, you can now remove the fuel pump assembly from the tank. Unscrew any retaining screws and carefully lift the assembly out of the tank. Take care not to damage the O-ring or any seals during this process.
Step 6: Replace the Fuel Pump
Now it’s time to replace the old fuel pump with the DeatschWerks DW300. Remove the old pump from the assembly and install the new pump according to the instructions provided in the installation kit. Make sure to secure it properly and replace any seals or O-rings as needed.
Step 7: Reassemble the Fuel Pump Assembly
Once the new pump is installed, reassemble the fuel pump assembly. Make sure all components are secure and correctly positioned. Carefully place the assembly back into the fuel tank, ensuring that the O-ring is seated properly to avoid leaks.
Step 8: Reconnect Fuel Lines and Electrical Connections
Reconnect the fuel lines to the fuel pump assembly. Ensure that they are securely attached to prevent any leaks. Next, reconnect the electrical connections to the fuel pump, making sure they are properly seated and secure.
Step 9: Test for Leaks
Before reassembling everything completely, it’s important to test for leaks. Turn the ignition to the “on” position without starting the engine to prime the fuel system. Check for any signs of fuel leaking from the connections. If there are no leaks, proceed to the next step.
Step 10: Reinstall Access Panel and Seats
With everything securely connected and leak-free, reinstall the access panel and secure it with screws. Then, replace the rear seats to complete the installation process.
Performance Benefits of the DeatschWerks DW300
Upgrading to the DeatschWerks DW300 fuel pump offers several performance benefits for your Toyota Supra:
- Increased Fuel Flow: The DW300 provides a higher flow rate compared to the stock pump, allowing for improved fuel delivery to the engine.
- Support for Higher Horsepower: If you’re planning on tuning your Supra for more power, the DW300 can support higher horsepower levels without sacrificing performance.
- Reliability: DeatschWerks pumps are known for their durability and reliability, ensuring consistent performance over time.
- Easy Installation: Designed for direct fitment, the DW300 can be installed with minimal modifications, making it accessible for DIY enthusiasts.
Conclusion
Installing the DeatschWerks DW300 fuel pump in your Toyota Supra is a straightforward process that can yield significant performance benefits. By following the step-by-step guide outlined above, you can enhance your vehicle’s fuel system and support your tuning goals. With increased fuel flow and reliability, the DW300 is a worthy investment for any Supra enthusiast looking to maximize their car’s performance.