only manifold without reed valve and rubbers.
Reed valve manifold kit.
Use: original cylinder, Rapido, Mugello, SR, MB
Power: Reed valves increas power at low revs. Without
changing inlet a small loss of max power can occurr. With holes in the piston
and/or a boost port the power will increase because of the 360° open inlet.
Carb size: The reed valve is made for a maximum of 28mm
carbs. That is a good size for up to 22hp. Bigger carbs in this power area will
bring only little more power, increase fuel consumption and
worsen throttle response. Our demonstration engine achieved 28.5hp with a
Keihin PWK28! The used Stage6 R/T reed valve may look small but has for example
20% more area than a standard Malossi PX reed valve.
Blow back: Because the reed valve closes the inlet when
there is pressure in the system the blow back is reduced massively.
Carb adjustment: Because of less blow back it is easier
to set up the carb as the again sucked in blowback doesn't enrich
the air ratio anymore when opening throttle again. The jetting needs to
changed but you can't say beforehand which way.
Fuel consumption: The additional power at low revs and the
less blow back reduces fuel consuption. Depending on the cylinder this can be up
Throttle response: Because the cylinder has not to cope with
the additional blow back gas it responds much better to throttle changes.
Starting: The better low down power lets the engine start
Durability: The reed block is Viton rubber covered so the
plates are dampened which increases durability.
Spacer: Will be delivered but is not needed.
Rev plates: Will also be delivered and are
better at high rpms (>12000) but decrease durability, so not
Gaskets: Can be used but we recommend using fluids like
Spares: There is a second plate set made of glass fibre
which we recommend to use as they increase power at low revs. Spare plates are
very cheap and also any Minarelli reed avlve can be used. The rubbers are
available at any Mikuni dealer.
Space: All carbs up to 35mm will fit under the panel! On
most Lambretta and carb models a rubber bellow with a filter on can be
fitted. The following carbs fit with rubber bellow on a Li3 for example:
Dell'orto PHB/VHSB bis 30mm, Mikuni TMX bis 30mm, Mikuni TM bis 35mm, Keihin PWK
bis 28mm, Koso PWK bis 34mm.
Rips: Depending on the cylinder one or two cooling fins have
to be cutted. The work is very little, on some cylinder types nothing has to be
cutted. The cylinder cowl has to be cutted.
Inlet hole: The manifold is developed to also be of use on
small cylinders. On bigger holes the manifold hole should be adapted. It has
enogh meat to do this.
Flow: Version V3 has been tested on a computer system
to improve flow.
Available rubbers: 102266, 101707, 100771 (letzterer
passt nur mit extra Dichtung oder viel Dirko)
Quality: The manifold is casted in Germany by a reknown
automotive company with a high dense alloy.
V2: New reed valve that produces 1-2hp more than the V-Force.
V3: Complete new construction as a high dense cast.
Manufactured in Germany by a professional automotive supplier. Improved
adaption possibilty to different cylinders. Improved frame clearance.
Smaller base hole and more meat to adopt to different inlet hole
types. Computer calculated imrpoved air flow