I was at my local dealer today and I was told that the air flap gives you your low end torque and he seemed to believe that I would be losing power by making this modification? Anybody have any input or proof to this before I do the mod?

 

Your local dealer is a retard , you can tell him I said that.

 

yep
too many dyno sheets posted across the web showing nothing but gains

heres a link because i am feeling generous

http://hooliganbiketech.dynup.net/ho...frameindex.htm
then click on easy flapper mod

back to back dyno runs with the only difference being the flapper is on and off

with the flapper off he picked up 3 hp and 3 ft/lbs

 

+1

 

In this case why don't you be the judge !! reach in your fairing pull the vacuum line and stick a bolt in it!! Take her out and give er a rip down the street if you don't like it plug the line back in !! easiest mod ever and adds a nice tone

 

I've seen this before and it could be true if the intire air box and intake track changed with the flapper. You can't close off one end and increase velosity as they say in the advertisement.

 

+1 I did the flapper mod about 2 weeks ago. Can't say that I feel an increase in HP (my butt dyno is not that sensitive), but def can't feel a decrease either. Plus, as stated, it does add a nice tone.

 

I had my bike for like 6,000 miles before I found out about this mod and Wow was I stoked after it was done !! Really seems like the mod is most noticable during throttle rolls in the lower rpm range say 4th gear @ 2500 rpm open her up and "GROWL" OH YEAH !!!!! Wished I would have heard about this one sooner!! Dude you can't go wrong best 5 minutes you've ever spent!!

 

the snorkle does change
at low rpms
very small doors are open allowing air in
at high rpms
flap opens and the entire snorkle is free
when you unhook the disable the flapper the snorkle is always open

www.rogueracing.org has some detailed pics of the intake track with the flap open and closed

 

I had this exact issue upon implementing nthe flapper mod. Lost low end torque. Put it back, and the front wheel is light.
Sure , it may get more power at a higher rpm, loss of torque for me.