the rsv is supposed to have one of the better ram air systems, (although not hi pressure like a turbo) but the air box does get pressurised by ram air, many mods actually do increase static power at the expense of hi speed power, its one of the problems with dyno's because they can't replicate moving through the air at 70mph (not with fans anyway)
I have stayed out of this so far as i feel it is up to an individual to make their own choices which route to take for modding their airbox, i am of the same opinion as majorjam, my reasons being
1 If you take away the airbox you have lost the ram air effect as it is lost due to having no actual airbox to give you pressure, the pressure in the airbox means the air can be drawn quicker into the motor as it is pressurised.
2 If you have cooler denser air this will also give better performance, the enclosed airbox mod means you are not allowing the motor to draw hot air from around the motor, this warm air will not be as dense as it has dried out due to heat, hot dry air is power sapping, go out on your bike on a chilly day and you will notice it runs crisper and picks up quicker, this is the cool air with moisture content.
3 The faster your speed the more air you are forcing into the sealed airbox which in turn is giving you forced induction, meaning more air and more fuel going into the motor quicker, thus giving more power.
4 This one is my own preference, the sealed mod is not as noisy, i prefer to hear the note of the exhaust than have it drowned out by the airbox.
Personally i do not see any cons with the Rene type method at all apart from the noise of the induction roar if that is what the rider wants, the first three are the reasons i believe make the sealed unit a better prospect.
This is not a post to upset any of you guys that have made an airbox mod recently, but i thought it was better to point out some valid reasons for going the sealed route.
Now, i just hope that Sabre's face has not turned the colour of his bike:nana:thumbup
Open for discussion now:devious