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Op dinsdag 13 mei 2003 08:17 schreef ZX6R/SP1 het volgende:
Is dat niet het slangetje wat naar de claxon loopt?
(serieuze vraag, heb echt 2 linker handen....) |
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 moet er anders wel om lachen.
Nee serieus da's het vacüumpotje, dat slangetje loopt naar een klep die voor je inlaat zit
ff wat uitleg
Many
of you have complained about the dip in power between 5000 & 7000
rpm & others like myself have had an annoying fueling glitch
(hiccup) at 6800 rpms especially with the Moriwaki's & a good map
installed, although all the bikes are affected by the flapper valve,
certain exhaust & map combos highlight this problem. Bill Staab has
found a solution! (and wrote most of what you are about to read...)
By
disconnecting the vacuum line to the flapper valve in the air intake
duct you can completely eliminate the hiccup at 6800 rpm & reduce
the power dip we have all seen on the dyno runs between 5000 & 7000
rpm.
As the flapper valve is an air intake noise control device
which is not used on the basic racer, but rather only on the street
legal bikes where noise levels are monitored by the EPA. It is advised
that you only do this mod to "race only" bikes.
Having gotten
the legal disclaimer out of the way let's get back to the flapper
valves function. The valve is partially responsible for the power dip
between 5000/7000 RPM. The flap is normally open. If you disconnect the
vacuum line it will always stay open. You can remove the flap if you
like. although it shouldn't make much difference with the stock air
box. The HRC and Moriwaki air boxes have a larger duct with no flap for
the race motors. The flap closes at about 5500 rpm which reduces the
intake duct about 65%. It opens back up about 6700 rpm. This is done to
reduce intake noise on the road bikes. The mod is done by simply
disconnecting the hose at the diaphragm switch & plugging the hose
with a screw,bolt or whatever you find handy or aesthetically pleasing.
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