what rigged dyno run are you talking about. run 1 with flapper plugged in. run 2 with flapper disabled.
run 2 had a hp increase. whats rigged about it.

go to this site
http://hooliganbiketech.net/hondacbr...frameindex.htm
click on the easy flapper mod link. he has a dyno chart posted of before after flapper mod from the same bike on the same dyno on the same day. a 3hp increase between 4400 and 7200 rpms right where the flapper is closed to open

 

I'm not talking about the hooliganbiketech site. I'm talking about Ty's theory that the flapper will open to some degree (depending on throttle) at engine speeds under 5500, the so-called "variable function". He also spoke of a rigged dyno run. Read the fifth post here https://cbrforum.com/m_198202/mpage_4/tm.htmif you want to know what I'm referring to.

A few posts ago you said. "yeah but we are not talking about WOT (in which case the flapper would be open anyway)"
I wasn't sure exactly what you meant, but it sounded similar to Ty's idea that the flapper can open at low RPM.In reality the flapper isalways fully closed below 5500 RPM.

 

someone mentioned about WOT and the impacts to the MAP. i fully admit the entire electronic system in its entirety is a subject i dont know a lot about. i know what each independent part does but not sure how they work together. but like i said before, a MAP only reads pressure inside the manifold not the airbox. the MAP could care less how much air is coming into the airbox. it reads the vacuum inside the engine to add fuel. low vacuum means more fuel. (according to the guys at 1000rr.net anyway) a MAF on the otherhand reads the air actually going into an airbox or engine and then yes a change like the flapper mod would make more drastic changes

 

I know exactly what MAP and MAF sensors are, what they do, and generally where they are located. An EFI system can't accuratelymaintainthe desired AFRunlessthe mass of the air going into the engine is known. Generally there are two ways to do this:A MAF sensor or a calculated mass flow based on MAP, IAT, RPM, and formula or table based on flow tests forthe manifold.