Hi, I just joined this site and was wondering what is a flapper mod? Also how do you folks modify the air box and is there any documentation of improvements? Thanks for your help!

 

Here is a description and how-to for the flapper valve:

http://www.rogueracing.org

 

Thanks for the link!

 

You will want to do the exhaust flapper as well or I don't see the point. You gain mid range HP but not overall HP. I think the screw thing is stupid as it does not take much more effort to remove the pastic and simply unplug the solenoid and zip tie that. I removed everything and caped off the nipple on the engine block.

Enlarging is removing the deviders and fiberglassing the holes from the small flappers you see on the sides. I supoose you could try speed tape isntead of fiberglass. I opted to keep the deviders for the side chambers with the small flappers and I glued the small flapper doors to cover the holes and opened the front. Don't worry about this untill you have upgraded the filters, exhaust and have a PCIII to tune.

 

I have not yet seen a dyno where ONLY the flapper mod was done and there was a HP gain.

Because it doesn't exist.

 

http://www.speedzilla.com/forums/rc5...tml#post442314

Read the bottom of the post.

 

it does exist -member spreedy from 1000rr.net dynoed it

 

Link?

I showed you mine.

 

is there a flapper on the 06 600rr?

 

Idiot.

http://www.hooliganbiketech.net/hond...flappermod.htm