Sylvie Willis
The 5th Gen Camaro fuel module can be converted to a mechanical 60psi constant pressure output when a VaporWorx fuel pressure regulator adapter is used with a 4th-gen pressure regulator. It is not recommended to use the 5th Gen Camaro fuel module in a traditional return-type system. If a traditional return type system is used, the return must go back into the module reservoir. If you are looking to install a return fuel line in your 5th Gen Camaro, it is important to understand the potential complexities and modifications required.
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What You'll Learn
- The 5th-gen LS3 fuel module can be converted to a mechanical 60psi constant pressure output
- The 5th-gen fuel module is not recommended for traditional return-type systems
- The 5th-gen Camaro fuel pump can be installed in a 68 Camaro Tank
- The 5th-gen Camaro replacement fuel line involves 8 steps
- The Q-Jet-equipped first-gen Camaro had a return line
The 5th-gen LS3 fuel module can be converted to a mechanical 60psi constant pressure output
The 5th Gen Camaro's fuel system requires a constant 60psi of fuel pressure. The VaporWorx mechanical fuel pressure regulator will provide 60psi for Gen5 Camaro fuel modules. This regulator can be used to convert the 5th-gen LS3 fuel module to a mechanical 60psi constant pressure output.
To relieve residual pressure in the 5th Gen Camaro fuel system, one must remove the gas cap and release the line pressure at the Schrader valve. The factory line can then be removed from the fuel rail and the hard line coming from the fuel tank on the passenger side of the engine bay using a 3/8 fuel line disconnect tool.
The LS3/L99 fuel module with the adapted mechanical system will work fine if the car is a weekend cruiser, the engine is under 525 horsepower, and it is naturally aspirated. If long pump life, long road trips, minimal pump noise, and higher horsepower are desired, then the PWM system is the better choice.
The PWM system simplifies and reduces the cost of the plumbing since no external filters, pressure regulators, or return lines are needed. The PWM system also reduces power at idle and cruise by 50% compared to a traditional return type system.
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The 5th-gen fuel module is not recommended for traditional return-type systems
The 5th-gen LS3 fuel module can be converted to a mechanical 60psi constant pressure output when a VaporWorx fuel pressure regulator adapter is used with a 4th-gen pressure regulator. These components replace the OEM safety valve found in the 5th-gen module. The VaporWorx adapter setup is not truly returnless, but it is the closest you can get using a traditional style setup.
Due to the high power requirements of the ZL1 and CTS-V fuel modules, pulse width modulation control systems are highly recommended. VaporWorks offers stand-alone pulse width modulation controllers that can work in either constant or manifold-referenced pressure modes.
Some people prefer to use the 5th-gen module because they are known to fit certain applications, and they offer the reliability of a stock GM module.
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The 5th-gen Camaro fuel pump can be installed in a 68 Camaro Tank
The 5th Gen Camaro fuel pump can be installed in a 68 Camaro Tank, but it requires some modifications. The 5th Gen Camaro fuel pump assembly can be modified to run at a constant 58 psi, which is what a stock fuel pump assembly is designed for. This can be achieved by using a VaporWorx fuel pressure regulator adapter with a 4th-gen pressure regulator. The VaporWorx adapter converts the 5th Gen fuel pump to run constantly rather than using PWM (Pulse Width Modulation) control.
The cost of the parts required for this modification can vary, but one person reported spending a total of $206.95 on the following: LS3 Camaro fuel pump, Colorado Mount w/ Ring, Recessed Tank Panel Metal, Parts from VaporWorx, 0-90 OHM Sending Unit, and a Viton Gasket.
It is important to note that the 5th Gen Camaro fuel pump assembly does not have a return line. This means that the returned fuel will always keep the bucket full, so no baffling is required. Additionally, the fuel filter is only filtering the rubber hose and external fittings, as the fuel module already has an OE-quality filter element.
Some people have reported success with this modification, stating that it provides OEM reliability and ease of service and function. However, others have questioned whether the PWM unit is necessary and have suggested that the 5th Gen pump can be controlled with PWM instead of modifying the OEM part.
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The 5th-gen Camaro replacement fuel line involves 8 steps
The 5th-gen Camaro replacement fuel line is a straightforward process that can be completed in eight simple steps. Here is a detailed guide to help you through the process:
Step 1: Relieve Residual Pressure
Start by relieving any residual pressure in the fuel system. This can be done by removing the gas cap and releasing the line pressure at the Schrader valve.
Step 2: Remove Factory Line
Using a 3/8 fuel line disconnect tool, carefully remove the factory line from the fuel rail. Also, remove the hard line coming from the fuel tank, which is located on the passenger side of the engine bay.
Step 3: Remove Center Support Nut
With a 10mm socket, remove the nut that holds the center support in place on the intake manifold. This will allow you to access the fuel lines more easily.
Step 4: Attach Adaptors
Attach the two supplied adaptors to the fuel rail and hard lines. These adaptors will ensure a proper connection between the fuel lines and the fuel system.
Step 5: Cut and Connect Hose
Cut the 6AN hose to the appropriate length and attach the two supplied 6AN 90-degree fittings to the hose. This hose will connect the fuel lines and allow fuel to flow through.
Step 6: Install Convoluted Tubing
To protect the braided hose from abrasion, install the supplied convoluted tubing around it. This will add an extra layer of protection and ensure the hose's longevity.
Step 7: Route the Hose
Carefully route the hose behind the engine and attach it securely at both ends. Ensure that the hose is not rubbing against any moving parts or sharp edges that could cause damage.
Step 8: Prime the Fuel Rails
Turn the key to the "on" position and wait for 10 seconds before turning it off. Repeat this process twice to ensure that the fuel rails are primed and at operating pressure. This will help prevent any issues when starting the engine.
By following these eight steps, you can successfully replace the fuel line in your 5th-gen Camaro, ensuring that your vehicle's fuel system is functioning optimally.
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The Q-Jet-equipped first-gen Camaro had a return line
The Q-Jet carburettor in the 1st-gen Camaro was paired with a specific fuel system that included a return line. This return line was part of the evaporative emissions control system, designed to reduce the amount of fuel vapour released into the atmosphere. The return line allowed excess fuel to flow back to the fuel tank, preventing it from being released through the carburettor.
Not all Q-Jet-equipped vehicles had a return line; it was more common on cars with emission control equipment, such as air pumps. However, some Camaro owners and enthusiasts have discussed the possibility of running the Q-Jet with a single fuel line, without the return line. They suggest that it is not necessary for the engine to function, but it is important to note that modifying the fuel system can impact performance and emissions.
The Camaro's fuel system is quite complex, with multiple lines running from the fuel tank. Some of these lines are fuel lines, while others have different functions, such as ventilation or brake fluid lines. The return line is typically smaller in diameter than the supply line, and it connects to a special fuel filter with a return line fitting.
In later generations of the Camaro, such as the 3rd and 5th generations, the fuel system and carburettor setups may differ significantly from the 1st-gen Camaro. When discussing fuel lines and carburettors, it is important to specify the generation and specific model of the Camaro, as the fuel system design can vary across different years and models.
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Frequently asked questions
It is not recommended to use a 5th Gen Camaro fuel module in a traditional return-type system. If you do use a traditional return-type system, the return must go back into the module reservoir.
You can use a 5th Gen Camaro fuel module with a VaporWorx fuel pressure regulator adapter and a 4th-gen pressure regulator. This replaces the OEM safety valve in the 5th Gen module.
Using a return fuel line can help maintain pressure by sending excess fuel back to the tank.
The fuel line size you should use depends on the engine size. For a 540 engine, a 1/2" fuel line is recommended. For a 305 engine, the supply line is 3/8" and the return line is 5/16".
