Air Filter

After I finish designing the intake and injector manifolds, I am going to need to figure out the air routing and filter setup.  The current filter on a PC800 is equivalent to an HA-8089 from K&N.  It has a filter are of roughly 10×6 inches.  Arguably, the air intake on the PC800 is a bit restricted so it could be bumped up larger on my FI conversion project.  A replacement that I have seen on other makes of bikes is to drop in a K&N cone-style filter.  One particularly attractive one that would fit on the end of the throttle body is an R-1260.  It’s inexpensive (about $30 online) and easy to get.  It has a conveniently larger filter area.  However, space constraints will dictate what I can put in.  I will also want to be pulling air from as far forward as possible on the bike.  Otherwise, I’ll be sucking in hot engine air which won’t help power any.  When I am making up the air filter/intake manifold, I will also need to remember to put a couple of bungs on it for my MAP sensor and other such measurements and references.