Pit Bike Breathes Again!

Whilst experimenting on my pit bike I had and idea that could actually work and its is as follows:

With the carb on the pit bike currently facing forward acting as a ram air, a bell mouth would work perfectly and seriously increase the desired ram air effect.

There are no current bell mouths for pit bike carbs online, with some heat and the right size sockets I managed to chop up a funnel and melt it over a socket with the sam OD as the pit bike carb. It bolted straight on and with a gauze to keep small wildlife out of the intake the bike fire up and sounded rarther healthy.

This is still in the prototype stage and has a few niggles (hits the forks when I turn right) other than that the bike should work fine. I may adjust the throttle needle to richen the mixture as the air will be travelling through at a lower pressure and higher velocity.

My next alterations will be the grind down the inside of the carb to get rid of any unwanted outer lips and the file down the choke as much as possible so when the bike is running off of choke it has the smallest possible loss factor and therefore indiuces the least amough of pumping loss or pressure difference. Any way fluid dymnamics aside I think this looks cool as it resembles something from a cartoon.

My next post will let you know how it performs.