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VESPTEC Item number: VT1128V28
VESPTEC

Carburetor sump cover -VESPTEC- Qicklock airbox with Venturi lower part for SI28 carburetor-. Vespa Largeframe 1957-2016 - PX, Rally, Sprint, Super, TS, GT, GTR, VBA, VBB, VNB - plastic (ASA, black)

VESPTEC Qicklock airbox for Vespa Largeframe - Quicklock system without screws
Designed for SI 28 mm carburetor - idle speed regulation from the outside in the right position
More air, more volume: flow-optimized geometry and very large intake volume
Venturi lower section integrated (screwless), elliptical optimized geometry - delivery 23.5 mm for adjustment
Ram-Air option: connection option for 28 mm Ram-Air air filter (air filter not included)
99,90 €*
available immediately
Shipping weight 0,17 kg
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Carburetor sump cover VESPTEC Qicklock Airbox - SI 28 - Quicklock, Venturi and Ram-Air option - Vespa Largeframe

The VESPTEC Qicklock air box is a modern air filter housing for large-frame setups if you want a clear direction: more intake air, more volume and an assembly where nothing can come loose. Instead of screws, VESPTEC relies on a Quicklock system: put on the cover, snap it in, done. In addition, there is the integrated Venturi lower section with optimized geometry and the option to connect an additional 28 mm Ram-Air air filterif you are looking for that extra intake air.

Quicklock without screws More volume Venturi lower section Ram-Air option 28 mm SI 28

Why the Qicklock airbox is so powerful

More air, more volume: flow-optimized internal geometry and significantly more intake volume than many standard solutions.
Quicklock without screws: minimizes the risk of fasteners coming loose and parts getting into the engine.
Venturi integrated: two-part system with screwless venturi unit in elliptical, optimized geometry.
Ram-Air option: additional connection for 28 mm Ram-Air air filter possible if you want to supply even more intake air.
Quieter in operation: greater material thickness and density noticeably reduce intake noise.

Technology, material and details

Material: ASA plastic, black - higher resistance to gasoline and oils.
Venturi: maximum surface area, supplied with 23.5 mm as a base for individual adjustment.
Accuracy of fit: installation without rubber seal provided, very consistent contact surfaces.
Stance throttle regulation from the outside: Position for SI 28 mm carburetor (stance throttle screw sits differently than on SI24-26).
Quicklock fastening: Mounted to the carburetor sump using the bolts supplied.

Important notes on installation

Carburetor sump: fits PX-alt and PX Lusso carburetor sumps, with and without oil pump.
Cable box: a cable box with offset outlet is required.
Sliding surfaces: use Teflon lubricant for clean sliding on the bolts.
Ram-Air connection: Insertion sleeve for attaching the air filter (inside) and TPU sealing cap for the connection hole are included.
Scope of delivery: Air filter is not included.
SIP carburetor sump: does not fit on SIP carburetor sumps without reworking, as the front thread is offset approx. 3 mm higher.
Product VESPTEC Qicklock airbox with Venturi lower part
Carburetor SI 28 mm
Venturi base 23.5 mm (for adjustment)
material ASA plastic, black
Mounting Quicklock, screwless (bolt to carburetor sump)
Ram-Air option Connection for 28 mm Ram-Air air filter possible (air filter not included)

Suitable for

Vespa Largeframe (classic)

Vespa 125 VNA and VNB
Vespa 150 VBA, VBB, Super
Vespa 125 GT, GTR, TS
Vespa 150 Sprint and Sprint Veloce
Vespa 180 Rally
Vespa 200 Rally

Vespa P and PX

Vespa P and PX series (PX up to and including 2016 model years depending on the market)
Vespa PX 80, PX 125, PX 150, PX 200
Vespa T5 125
Vespa Cosa 125, 150 and 200

Motovespa (ES)

Motovespa 125, 150 and 200 large-frame models based on PX and Sprint (depending on version)
Motovespa Iris series (PX Iris 125, 150 and 200)

Note: The model list covers the largeframe series with SI carburetor sumps. For conversions and mixed configurations, please always check the space on the frame, cable box design and carburetor sump (PX-alt, Lusso, SIP) on the vehicle.

FAQ

You fit bolts to the carburetor tray and the cover snaps into place without screws. This minimizes the risk of fasteners coming loose.
Yes, it is designed for PX-alt and Lusso sumps. Variants with and without oil pump are also covered.
The SI 28 has a different position for the idle throttle screw than the SI24 to SI26. This version is designed to ensure that the idle throttle regulation works properly from the outside.
No. You can either run the airbox closed or connect a 28 mm Ram-Air air filter. The air filter is not included.
Not without reworking, as the front thread on SIP tubs is offset approx. 3 mm higher in comparison.

Conclusion

The VESPTEC Qicklock airbox for SI 28 is the consistent airbox solution for large frames: Quicklock without screws, lots of volume, integrated venturi and the option of adding even more intake air with a 28 mm Ram-Air air filter. In addition, the version is designed in such a way that the idle speed regulation from the outsidefits cleanly on the SI 28.

Note on property rights

ATTENTION: This product is protected by EU patent. Any imitation, reverse engineering or commercial use without a license is punishable by law and will be prosecuted under civil and criminal law (§ 25 GeschGefG, UrhG). Please contact us in case of suspicion.

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