Mercedes Mullins
The Chevrolet Corvette C6 has two fuel tanks, each with a capacity of around 9 gallons. The dual-tank system is designed to balance the car's weight distribution and improve handling. Each tank is connected to the other, with the driver's side filling first when fuelling up. The C6 has been known to have fuel line cracking issues, potentially caused by heat or vapour leaks. Aftermarket dual pump fuel systems are available for the C6, designed to be easy to install and provide sufficient fuel for high-performance applications. These systems aim to address the issues of noisy and constantly running pumps, which can cause fuel heating problems.
| Characteristics | Values |
|---|---|
| Number of fuel tanks | 2 |
| Location of fuel tanks | One on each side of the car |
| Capacity of each tank | 9 gallons |
| Filling order | Driver's side first, then passenger side |
| Draining order | Passenger side first, then driver's side |
| Purpose of dual fuel tanks | Balance the car for better handling; weight distribution |
| Fuel system type | Dual pump fuel system |
| Fuel system features | Single housing for both pumps, single line in and out, preassembled stainless PTFE lines, high-capacity dual pumps, custom pump mounting brackets |
| Fuel system compatibility | Late 2003 C5 (VIN # 114931 and later) and all C6 models (excluding ZR1) |
| Fuel system flow rate | 530 LPH or 140 GPH at 60 PSI fuel pressure |
| Fuel system rating | 1200 HP at 60 PSI |
| Common issues | Fuel line cracking, electrical issues, heat-related issues |
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What You'll Learn
- The C6 Corvette has two fuel tanks, each holding 9 gallons
- The tanks are connected, with the passenger side draining first
- The dual-tank system balances the car for better handling
- The A&A C6 Dual Pump Fuel System is compatible with late 2003 C5 and all C6 models
- The C6 Corvette has experienced fuel line cracking issues
The C6 Corvette has two fuel tanks, each holding 9 gallons
When filling up the C6 Corvette, the driver's side tank fills first, followed by the passenger side tank. This sequential filling process is managed by two "sending units" that monitor the fuel level in each tank. The tanks work in conjunction to provide a seamless and efficient fuel delivery system.
The C6 Corvette's dual-tank system has been designed with ease of installation and maintenance in mind. The tanks are equipped with electric pumps that operate quietly and efficiently. This design consideration ensures that the driver only hears the pump when it is necessary, such as under boost conditions. Additionally, the dual-pump system allows for different boost levels and can supply enough fuel for projects requiring 600 to over 1000 RWHP.
While the dual-tank system offers several advantages, it is important to note that some C6 Corvette owners have reported fuel line cracking issues. These cracks can cause vapour leaks, leading to an unpleasant smell. In some cases, temporary fixes such as epoxy or silicone RTV patches have been used, but a more permanent solution may require dropping the transmission, rear end, and the tanks for a proper repair. Overall, the dual-tank system in the C6 Corvette contributes to the car's performance, handling, and efficiency, making it a well-engineered feature of this iconic sports car.
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The tanks are connected, with the passenger side draining first
The C6 Corvette has two fuel tanks, with each tank connected to one another and located on each side of the car. Each tank can hold around 9 gallons of gas. The tanks are connected, with the passenger side draining first, and then the driver's side. This is due to the jet pump on the passenger side, which is driven by fuel pressure and transfers fuel over to the driver's side. The two tanks are used to balance the car for better handling.
When fuelling up, the driver's side fills first, and then the other tank. There are two 'sending units' for the fuel level. The dual-tank system is designed to improve the weight distribution of the car, ensuring a more even balance and improving overall handling. This is particularly beneficial for high-performance vehicles like the C6 Corvette, where weight distribution can significantly impact the driving experience and performance.
The dual-tank setup also helps to optimise fuel usage and range. By having two smaller tanks connected, the fuel can be more efficiently utilised, and the car's range can be extended compared to a single larger tank. This design consideration is especially important for sports cars, where maximising performance and efficiency is crucial.
The C6 Corvette's dual fuel tank system is an example of how automotive engineers have innovated to enhance both performance and efficiency. By utilising a dual-tank setup, the car's handling and weight distribution are improved, while also extending the vehicle's range. This showcases the attention to detail and the engineering expertise that goes into designing high-performance sports cars like the C6 Corvette.
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The dual-tank system balances the car for better handling
The C6 Corvette features a dual-tank fuel system, with two fuel tanks connected to one another, one on each side of the car. Each tank holds about 9 gallons of gas. The dual-tank system balances the car for better handling. This is achieved through a weight distribution that enhances overall handling. The two tanks are used for balance, much like a Huey fuel cell.
The dual-tank system operates with two pumps, one electric pump on the driver's side and one jet pump on the passenger side, driven by fuel pressure. During fuelling, the driver's side tank fills first, and then the jet pump transfers the fuel to the passenger side. When driving, the factory pump typically runs under most driving conditions, and the secondary pump only comes on under boost when it is needed. This system is designed to be seamless and quiet, avoiding the annoyance of a constantly running noisy fuel pump.
The dual-pump system has both pumps built into a single housing, making a single line in and out possible. The pumps can be staged to actuate at different boost levels. This design allows for ease of installation and can save on labour costs. The system is compatible with early and late C6 models and can supply enough fuel for 600 to over 1000 RWHP.
The dual-tank system balances the weight distribution in the C6 Corvette, improving handling and overall performance. The dual pumps work in tandem to ensure a seamless and efficient fuel supply, enhancing the driving experience.
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The A&A C6 Dual Pump Fuel System is compatible with late 2003 C5 and all C6 models
The C6 Corvette features two fuel tanks, with each tank connected to one another, and each holding about 9 gallons of gas. The tanks are used to balance the car for better handling overall. The driver's side fills first, followed by the passenger side.
The A&A C6 Dual Pump Fuel System is a secondary fuel system that is compatible with late 2003 C5 (VIN # 114931 and later) and all C6 models, excluding the ZR1. The system is designed for ease of installation, and does not require dropping the tanks and the complete drivetrain. It can supply enough fuel for your 600 to over 1000 RWHP project, saving 10 hours or more in labour costs.
The A&A system features two pumps built into a single housing, making a single line in and out possible. The pumps can be staged to actuate at different boost levels, and the fuel pressure and boost level at which the pumps turn on are fully adjustable. The pump flows 530 LPH or 140 GPH at 60 PSI fuel pressure, and the system is rated at 1200 HP at 60 PSI. For horsepower levels above 1200 HP, a Boost A Pump can be added, or even two Boost A Pumps for extremely high horsepower applications.
The A&A system uses heat-shrunk connections, Weather Pack style connectors, and high-quality pressure switches for reliability. It comes with preassembled stainless PTFE lines, two preassembled wire harnesses, two adjustable Hobbs switches, a return regulator with a polished mounting bracket, high-capacity dual pumps, custom-made pump mounting brackets, a fuel line disconnect tool, a drain hose to pump fuel from the tank, a filter, and all necessary fittings. The system is also E85 compatible.
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The C6 Corvette has experienced fuel line cracking issues
Some owners have reported seeing small cracks around the vapour canister vent solenoid and fuel sending module, which are thought to be the cause of the leaks. These cracks can be hard to spot with the naked eye, and some owners have resorted to using epoxy or silicone RTV to patch the cracks temporarily. However, this is not a permanent solution, and the only way to properly fix the issue is to drop the transmission, rear end, and the tanks to replace the affected parts. This is a time-consuming and costly job, with some owners reporting that it took them two days to figure out how to do it and six hours to actually replace the tank and fuel pump.
It is worth noting that not all C6 Corvettes experience these issues, and some owners have reported no problems even at 100,000+ miles. However, for those who do experience fuel line cracking, the consequences can be severe, with repair bills costing upwards of $15,000.
To prevent these issues, it is recommended to regularly inspect the fuel lines for any signs of cracking or deterioration and replace them if necessary. It is also important to note that the C6 Corvette has two fuel tanks, located on either side of the car, which are connected to each other. Each tank holds about nine gallons of gas, and the driver's side tank fills first when fuelling up. The two tanks are used for balance and better handling overall.
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Frequently asked questions
The C6 Corvette has two fuel tanks, with each tank holding about 9 gallons of gas.
The two tanks are connected to one another, with each tank having its own pump. The driver's side tank fills first, followed by the passenger side tank. The dual pump system is designed to supply enough fuel for your 600 to over 1000 RWHP project.
The dual fuel tank system provides better balance and handling for the car due to improved weight distribution. Additionally, the system is designed for easy installation and can save on labor costs.
Some C6 Corvette owners have reported fuel line cracking issues, which may be related to heat or vapor leaks from the tank. These cracks can cause vapor leaks and, in some cases, physical fuel leaks.
Yes, companies like A&A Corvette Performance offer a dual pump fuel system compatible with late 2003 C5 and all C6 models (excluding ZR1). Their system is designed for easy installation and provides seamless and quiet operation.
