Mercedes Mullins
C85 is a type of fuel used for racing that is based on pure ethanol with chemicals for vaporization and atomization blended in. It is the highest octane, non-oxygenated unleaded racing fuel in the world. C85 fuel can make up to 4% more power and torque than conventional E85 fuel. However, C85 fuel cannot be used with fuel injectors that are not compatible with MTBE. In terms of compression, one source mentions that an engine with more than 11:1 compression cannot safely run on C85 fuel. However, another source mentions that their engine has a compression of 14.1:1 and they plan to use C85 fuel.
| Characteristics | Values |
|---|---|
| Power | C85 fuel can make up to 4% more power and torque than conventional E85. |
| Compatibility | C85 fuel works well in drag racing, circle track, off-road, and virtually any other automotive application. |
| Cost | C85 fuel is cheaper than race fuel. |
| Engine compatibility | C85 fuel is suitable for engines with a compression ratio between 11.5 and 13:1. |
| Fuel efficiency | C85 fuel has been reported to have better fuel efficiency than race gas in engines with a compression ratio of 13.5 to 14.7. |
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What You'll Learn
- C85 fuel is based on pure ethanol with added chemicals for vaporization and atomization
- C85 fuel produces up to 4% more power and torque than conventional E85
- C85 fuel is blended with a consistent proportion of ethanol and other components
- C85 fuel is more expensive than E85 fuel
- C85 fuel is not widely available
C85 fuel is based on pure ethanol with added chemicals for vaporization and atomization
C85 fuel is a blend of pure ethanol and added chemicals for vaporization and atomization. It is produced by VP Racing Fuels and is an upgraded version of E85 fuel. While E85 fuel is a blend of ethanol and unleaded gasoline, C85 fuel is based on pure ethanol with added chemicals to enhance its performance.
Ethanol has a higher octane rating than gasoline, with ethanol having an octane rating of 115 and E85 having a rating of 105. This higher octane rating allows C85 fuel to be used in high-compression engines, as it can take advantage of the higher compression ratio to produce more power. The added chemicals in C85 fuel also help with the vaporization of the ethanol, as ethanol and methanol do not vaporize easily. This results in a more powerful and efficient fuel.
C85 fuel has been shown to produce more power and torque than conventional E85 fuel. Testing has demonstrated that C85 fuel can increase power and torque by up to 4% compared to E85. This makes it a popular choice for racing and other high-performance applications. The higher octane rating of ethanol also helps to extend engine life by preventing the burning of engine valves and reducing the build-up of olefins in fuel injectors.
However, there are some considerations when using C85 fuel. The higher ethanol content can lead to fuel lean conditions, which can damage the engine. Additionally, the cost of C85 fuel is higher than gasoline or E85 fuel, and it may not be readily available in all locations. Despite these drawbacks, C85 fuel offers increased performance and efficiency for high-compression engines, making it a popular choice for racing and other applications where maximum power is desired.
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C85 fuel produces up to 4% more power and torque than conventional E85
C85 fuel is a blend of ethanol and other components, designed specifically for racing. It offers superior performance to E85 fuel, with up to 4% more power and torque. This makes it ideal for drag racing, circle track, and off-road use, as well as other automotive applications.
The benefits of C85 fuel are evident when compared to E85. In a 2013 ZL1 test, the car produced 600 horsepower and 625 lb-ft of torque with E85 fuel. However, with C85, the same car achieved 644 horsepower and 668 lb-ft of torque, showcasing the enhanced performance of C85.
The higher performance of C85 fuel is attributed to its ability to handle increased timing. While the E85 tune had specific timing constraints, C85 fuel allowed the engine to handle two to three additional degrees of timing, resulting in increased power and torque.
It is important to note that C85 fuel requires compatibility with MTBE fuel injectors. Using C85 with incompatible fuel injectors can lead to issues. Additionally, the use of C85 fuel may result in a decreased vehicle range, a trade-off often considered worthwhile for the significant performance gains.
C85 fuel provides a notable improvement in power and torque over conventional E85, making it a preferred choice for racing enthusiasts seeking maximum performance from their vehicles.
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C85 fuel is blended with a consistent proportion of ethanol and other components
C85 is a type of fuel that is blended with a consistent proportion of ethanol and other components. It is produced by VP Racing Fuels and is said to make up to 4% more power and torque than conventional E85 fuel. While the exact chemical composition of C85 is not publicly known, it is believed to be based on pure ethanol with added chemicals to aid vaporization and atomization. This blend is designed to improve the performance of forced induction engines.
When considering the compression ratio of an engine, it is important to choose the right type of fuel to maximize performance. For example, when using E85 fuel, it is recommended to increase the compression ratio to fully utilize the fuel's high octane rating. A higher compression ratio can lead to increased power output. However, it is important to note that different engines have specific compression ratio requirements, and adjustments should be made carefully to avoid any potential engine damage.
In the case of C85 fuel, there is limited information available regarding the optimal compression ratio. Some sources suggest that C85 fuel is most effective in engines with higher compression ratios, similar to those used for methanol or high octane race fuels. This indicates that C85 fuel may perform better in engines designed for higher compression ratios, but further testing and engine-specific data are needed to confirm this.
It is worth noting that VP Racing Fuels, the manufacturer of C85, provides specific warnings and instructions for using their fuel products. They emphasize the importance of ensuring compatibility with fuel injectors and engines. VP Racing Fuels also offers a range of specialized racing motor oils and engine lubricants to complement their fuel products and maximize performance. Therefore, when considering the use of C85 fuel, it is advisable to consult with VP Racing Fuels and follow their recommendations for optimal results.
While the exact compression ratio requirements for C85 fuel may not be publicly available, the available information suggests that C85 fuel is designed for engines capable of handling higher compression ratios. The performance gains associated with C85 fuel indicate its potential for use in racing and automotive applications where power and torque are prioritized. However, as with any fuel modification, it is crucial to conduct thorough research and follow manufacturer guidelines to ensure the safety and longevity of the engine.
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C85 fuel is more expensive than E85 fuel
C85 fuel is a blend of 85% ethanol and other components, such as MTBE, nitromethane, or nitro propane. It offers superior performance in terms of power and torque compared to conventional E85 fuel, which is a blend of 85% ethanol and cheaper, lower-grade gasoline. C85 fuel is specifically designed for racing applications and is suitable for drag racing, circle track, and off-road use.
While C85 fuel offers enhanced performance, it is more expensive than E85 fuel. E85 fuel is known for providing excellent value for money, often costing less than pump gas while delivering race gas levels of boost and improved turbo response and midrange torque. The affordability of E85 fuel makes it a popular choice for car enthusiasts seeking high performance without breaking the bank.
The price difference between C85 and E85 fuels can be attributed to several factors. Firstly, C85 fuel contains higher-quality pure components, which contribute to its superior performance but also increase its cost. Secondly, C85 fuel is a specialised racing fuel, and the demand for it may be lower than that of E85, which can be used in a wider range of vehicles. This lower demand can result in higher prices for C85 fuel.
Additionally, the shipping and distribution of C85 fuel may incur additional charges due to regulations from the federal government's Environmental Protection Agency (EPA). These surcharges further contribute to the overall higher cost of C85 fuel compared to E85.
It's worth noting that the choice between C85 and E85 fuel depends on specific requirements and budget constraints. While C85 fuel offers superior performance, E85 provides a more cost-effective option for those seeking high performance on a budget. Ultimately, the decision between the two fuels depends on the user's priorities and intended application.
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C85 fuel is not widely available
C85 is a type of racing fuel that is not widely available. It is a high-octane, non-oxygenated unleaded fuel that has been used in a wide array of engines, including nitrous, turbocharged, and naturally aspirated. VP Racing Fuels, the manufacturer of C85, claims that it offers up to 4% more power and torque compared to conventional E85 fuel. The fuel is blended with a consistent proportion of ethanol and other high-quality components, making it superior to E85 products.
One of the reasons C85 fuel is not widely available is due to regulations from the federal government's Environmental Protection Agency (EPA). The sale and use of C85 fuel are subject to additional surcharges and restrictions. For example, VP Racing Fuels assesses a surcharge for each 6-gallon case of fuel ordered, which is included in the shipping charges. Additionally, C85 fuel does not comply with Australian E85 standards and requires a racing license for purchase in Australia.
Another reason for its limited availability is that C85 fuel is specifically designed for racing applications and may not be suitable for everyday use in standard vehicles. It requires retuning and is not a direct replacement for E85 fuel, which can be used without modifications. C85 fuel also has specific compatibility requirements, such as the need for fuel injectors that are compatible with MTBE, further limiting its use in vehicles that do not meet these specifications.
Furthermore, C85 fuel is typically only available for in-store pickup due to the volatile nature of shipping large cans of fuel. This distribution model may contribute to its limited availability, as it is not as easily accessible as fuels that can be purchased and shipped online. Overall, these factors contribute to the limited availability of C85 fuel, making it a specialized product for racing enthusiasts and those with specific automotive applications.
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Frequently asked questions
C85 is a type of racing fuel that is a blend of ethanol and other chemicals. It is the highest octane, non-oxygenated unleaded racing fuel in the world.
It is recommended that engines with more than 11:1 compression should not use C85 fuel. However, some users have reported using C85 fuel with engines that have a higher compression ratio, such as 14:1.
C85 fuel can provide more power and torque compared to conventional E85 fuel. It can also improve fuel efficiency in engines with higher compression ratios.
C85 fuel may not be widely available and may require re-tuning. Additionally, it may not be compatible with all types of fuel injectors.
