19-10-2005, 04:11am
Some really great info there, I appreciate you taking the time. Fuel injectors are not something I know a great deal about.
Seems like a "law of diminishing returns". I guess this is why, with a bike fuelled as mine is by a boost-referenced FMU, and the A/F set correct for max RPM they tend to go rich in the mid-range unless a powercommander is used to map it out. I guess if the mid-range were to be set correct then the top-end would go lean because of the way the increase in flow drops off faster as pressure increases. The rising-rate FMU really is the poor relation of turbo fuelling systems, and pretty much the crudest I would say. <i></i>
Seems like a "law of diminishing returns". I guess this is why, with a bike fuelled as mine is by a boost-referenced FMU, and the A/F set correct for max RPM they tend to go rich in the mid-range unless a powercommander is used to map it out. I guess if the mid-range were to be set correct then the top-end would go lean because of the way the increase in flow drops off faster as pressure increases. The rising-rate FMU really is the poor relation of turbo fuelling systems, and pretty much the crudest I would say. <i></i>