Motion raceworks flex fuel12/29/2023 This means that you can place a flex fuel sensor on the pressure / feed side of your fuel system without losing flow or having to create a bunch of leak points by plumbing Y and adapter fittings. We noticed this issue some time ago and developed a DUAL CHANNEL billet Flex Fuel sensor mount that creates two passages that are greater than the internal ID of a 10AN fuel hose or fitting. The Flex Fuel sensor internal orifice is too small will not flow what my fuel system demands, what can I do? The ECU is calibrated to understand what voltage represents what Ethanol content by means of standard calibration data. The sensor has a pre calibrated signal that is sent from the sensor in a 0-5v voltage indicating which amount of alcohol is present. Flex fuel sensors measure the amount of alcohol (ethanol is a form of alcohol) in the fuel passing through it. Some tuners will also place the flex fuel sensor in the return line although it is debated that this can cause read errors with less fuel returning than feeding and the possibility of sensor bypass depending on plumbing and mounting. This allows consistent sampling of real fuel to pass through the sensor for accurate reading of the fuel. So how does a flex fuel sensor work and what are some common questions?įlex fuel sensors are traditionally placed on the feed line of a fuel system (line going into the engine or the pressure side). If an engine depends on that octane, the tuneup can become unsafe in a hurry. This means that you effectively may have 10 different octane levels. If you stop at 10 different gas stations to get E85, you may get 10 different ethanol contents. With the help of Flex Fuel sensors, the fuel variations (actual ethanol content) have made it so that tuners can create a seamless variable tuneup to keep engines safe and maximize power. The automotive industry like any new concept has consistently advanced the technology and it is now used reliably in high horsepower N/A, Turbocharged, and Supercharged combinations. In recent years E85 and Ethanol containing fuel has become a popular and viable alternative to high octane race fuels.
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