F4i Flapper/PAIR/Klean Air mods?
Login  | |
|
|
|
|
|
RE: F4i Flapper/PAIR/Klean Air mods? - 4/3/2008 4:53:25 AM
|
|
|
wishin4600rr
Posts: 160
Joined: 5/10/2007
Status: offline
|
Well here's what each of them do and IMHO is it worth it? For the time, effort, and cost I don't think it would be worth it.
* the below information is someone else's explanation, I just copied and paste the info so people can know what it is.
Flapper Mod: http://www.919.org/flap.htm
Simply put, the Flapper Mod allows the flap on the R32's exhaust, which is always closed at lower revs (to let poor sleepy neighborhoods enjoy their peace and quiet), to open up while still running these lower rpms. The open exhaust flap now allows the engine to breath and roar like it does above 4,000 revs, and it also adds horsepower by reducing exhaust backpressure.
Pair Valve Mod: http://www.cbr929rr.com/pair.htm
Well, one reason is to stop backfiring on decel, another is if you plan on sealing your airbox and probably the best reason is to make it practical to correctly map your A/F ratio if you have any dyno tuning performed.
Oh, and you lose about 1.5 lbs of junk and make a very crowded area on the engine somewhat less cluttered . .
Klean Air Mod: it lets fresh air into the exhaust immediately after the exhaust valve. this helps burn unburned fuel before it goes to the cat or out the can.
_____________________________
Nitrous is like a super model with Aids....You really want to hit but you're scared. Living life to the fullest and living Foolishly are two different things.
|
|
|
|
|
RE: F4i Flapper/PAIR/Klean Air mods? - 4/3/2008 5:28:18 AM
|
|
|
PlayfulGod
Posts: 3739
Joined: 6/9/2007
From: Dalton, GA
Status: offline
|
does the F4i even have those? I know the F4 doesnt, and dont think the 01 - 03 F4i does, Cali model prolly does their EPA standards blows goats.
_____________________________
For All your Hosting Needs, TechyGeek.com
SBG
PC Gamer Tag: The_Plague
|
|
|
|
|
RE: F4i Flapper/PAIR/Klean Air mods? - 4/3/2008 5:50:40 AM
|
|
|
StreetPower
Posts: 362
Joined: 12/16/2007
From: Ukraine
Status: offline
|
considering i did pair valve mod on my f4i, it has the pair valve ;)
don't know about others. mine, especially is the cali model and had fuel evap too. i got rid of it(it was beaten up by previous owner pretty badly).
|
|
|
|
|
RE: F4i Flapper/PAIR/Klean Air mods? - 4/3/2008 6:58:20 PM
|
|
|
letsride
Posts: 390
Joined: 10/11/2007
From: Waterford,Ca.
Status: offline
|
The F4i doesn't have a flapper.
_____________________________
03 cbr 954 rr
Akrapovic bolt on
Bmc race air filter
Hass Eliminator
pcIIIr
pazzo levers
Life''''''''''''''''s a cycle ride it!
|
|
|
|
|
|
|
RE: F4i Flapper/PAIR/Klean Air mods? - 4/4/2008 9:12:47 AM
|
|
|
ssweetbro
Posts: 52
Joined: 3/17/2008
Status: offline
|
Hey guys,
Here is a thread that shows a pretty clean PAIR valve removal proccess. It is SUPER cheap also.
http://www.cbrforum.com/m_512968/tm.htm
Oh, as for removing the charcoal canister, do you just plug the vacuum lines that go up to this intake that came from the canister/sensor?
Thanks,
Josh
|
|
|
|
|
Printable Version
