Flex Fuel and How It Works

What is Flex Fuel?

A Flex Fuel Kit is an automotive system setup that allows vehicles to operate on more than one type of fuel, usually a mix of gasoline and ethanol-based fuels like E85. This kit updates the engine's fuel system, enabling it to adapt automatically to the fuel being used. At the heart of a Flex Fuel Kit is a sensor that measures the ethanol content in the fuel, allowing the engine control unit (ECU) to adjust the air-fuel mixture and ignition timing as needed. This flexibility ensures that the engine runs efficiently on any fuel blend, giving drivers more fuel options.

There are several benefits to installing a Flex Fuel Kit. First, it can enhance engine performance since ethanol has a higher octane rating than gasoline, which supports higher compression ratios and more power. Additionally, ethanol-based fuels can be more cost-effective, as ethanol is often less expensive than gasoline. Using ethanol also has environmental benefits, as it is a renewable resource and can help reduce greenhouse gas emissions. Furthermore, the ability to use different fuels provides a safeguard during fuel shortages or price increases, ensuring that the vehicle can continue to operate efficiently in various conditions.

COBB's History with Flex Fuel Tuning

At COBB Tuning, we have proudly led the way in flex-fuel innovation, offering advanced Flex Fuel Kits to meet the evolving needs of performance enthusiasts. Our journey began with the development of Flex Fuel Kits for popular models like the Subaru WRX and STI. These initial offerings were crafted to seamlessly integrate with our renowned Accessport tuning platform, allowing drivers to effortlessly switch between gasoline and ethanol blends while maximizing their vehicle’s performance. To ensure optimal performance, it is crucial to maintain the fuel pump and monitor fuel pressure, as they play vital roles in delivering the right amount of fuel and maintaining consistency across different fuel types.

Building on the success of our early kits, we expanded our Flex Fuel Kit lineup to include a wider range of vehicles including Nissan and Volkswagen. Each kit was designed with precision to ensure compatibility with the unique engine management systems of these vehicles. The integration with our Accessport system remained a hallmark feature, providing users with real-time ethanol content monitoring and the ability to make instant adjustments to fuel and ignition settings. This comprehensive control has cemented our reputation for delivering top-tier, performance-focused solutions.

To further enhance vehicle performance, our Flex Fuel Kits optimize fuel flow, ensuring that engines receive the precise amount of fuel needed for maximum efficiency. Whether you pump gas or use ethanol blends, our kits adapt seamlessly to maintain consistent power and reliability.

In recent years, we have further refined our Flex Fuel Kits to enhance their reliability and ease of installation. Our latest generation kits feature advanced ethanol sensors, durable wiring harness, and detailed installation guides, making them accessible even for DIY enthusiasts. Additionally, we have strengthened our support network, offering detailed tuning maps and exceptional customer service to ensure optimal performance and satisfaction. Today, our Flex Fuel Kits are industry benchmarks, exemplifying our commitment to performance, flexibility, and innovation for modern automotive enthusiasts.