I did use a ram air set-up on my YSR 50.
I tested it @ 50-55 MPH I did get positive boost pressure of 1/10th of one psi!!!
People asked me if it helped, I'd reply it can't hurt & BTW I did win the championship in that class.
All the little things help, & adding all the little things up equaled a definate power gain over others.
Superbikes use have been using ram air/pressurized air box for quite some time now.
Testing bikes like a ZX-12 against a Hyabusa (sp)
Static the ZX-12 was way down on power.
Then they pressureized the air box as if the bike was going 150-170 MPH & bamm 10-15 more HP IIRC?
I think it got a positive boost pressure of .4-.6 PSI IIRC?
MBHD
