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Fuel Injection for the FCR carb?
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[QUOTE="Rich Rohrich, post: 1209599, member: 16241"] Doug - Assuming it's engineered correctly I don't see why it wouldn't accomplish the task. The bigger question for me would be is it really useful? What I'm getting at is the differences between tuning for the atmospheric conditions, the evaporization characteristics of the fuel, the track conditions, and the riders "style". I have to go do some stuff but I'll be back later tonight. In the mean time think about what influences the "tuning" of that accelerator pump shot. Here's a few thoughts to ponder on fuel requirements in a four-stroke. Regardless of engine speed, the airflow and fuel delivery demands of the engine depend on the load being placed upon it. That load and the resulting throttle opening directly effect manifold pressure (MAP), which in turn affects the fuel requirements. MAP increases as load and power increase Fuel requirements depend more than anything else on how much work you are asking the engine to do, basically how much of a load you are placing on it. As the throttle opens to atmospheric pressure manifold pressure (MAP) increases. Pressure in the intake depends on throttle opening, and cylinder filling (VE) is directly tied to throttle opening. The pressure differential in the fuel metering system of a carburetor is usually pretty small, only a few pounds per square inch (PSI), but it's that differential pressure that forces fuel through the jets in the carb. As the pressure differential changes so does the amount of fuel passing through the jets into the engine. The only circuit that ignores the pressure differentials and relies solely on fixed mechanical methods to introduce fuel is the AP circuit. I'll be back later and we can chat about why this matters. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Fuel Injection for the FCR carb?
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