Hi, my question is, how to calculate airbox air intake area?
This is my setup.
I`m running top perfomances due plus with 21mm dellorto carb, setup is as follows:
-82 main jet, W16 needle fully down, 50 slide, 45 pilot, air screw 3.5 turns unscrewed
I am using stock minarelli airbox (with malossi red sponge) and 2 holes on it , one is the stock intake hole (14mm wide) but I put out the tube and now is 23mm wide and second one 13mm wide. That`s equal to one hole of 26mm.
Carb is jetted very good and bike is running very good also, but i have consumption of 10-12 liter/100km, and i think it`s too much, what do you think? I have yellow top performaces cdi and giannelli shot.
I am using my bike every day on the public roads.
How can I be sure that carb is getting enough air?
Malossi says for their 21mm dellorto, that u have to bore another hole 13mm wide next to stock intake hole, but not to put the tube out, if I do so it is equal to one hole of 19 mm.
Here is the picture how it should look regarding to malossi.
I tried to jet that way but it was much easier when I put the tube out.
Now I am confused, 19mm it`s even less then carb venturi, is it possible to have enough air that way?
Thanks to all who had patience to read and understand this, I know there is many questions here, every answer is gratly appreciated.