cylinder for Vespa PX/T5/Cosa & LML 125-200 at SIP Scootershop
Even the big Vespas really take wing with the insert of the right cylinder kit. Although the increase in displacement is not as great as with the small frames, the channel design and the timing of the tuning kits really come into their own. This is mainly due to the fact that the larger channels and their sharper timing allow the cylinder to breathe freely. The cross-section and shape of the channels ensure that the necessary amount of mixture is available even at high engine speeds.
Different engine classes
80 cc: 135-177 cc:a few models are original with 80-100 cc and 48 mm stroke: Vespa P80X / PX80E / Lusso / PX100E. Originally they are very weak-blooded. Remedy comes from MALOSSI and DR. For those who are hungry for power, we also offer 166-177cc cylinders specially machined for the 80cc crankcase.
125-150cc: 125-187ccin this cubic class we distinguish between different engines in terms of cylinders:
3 ÜS (overflowers) : Almost all 125/150cc Vespas since the mid-60s are equipped with 3 overflowers. These are the models Vespa 125 GTR VNL2T 138957 -> /TS/150 Sprint VLB1T 105200 -> /Veloce/Super VBC1T 328129 -> /Cosa 125-150/P125-150X/PX125-150E/Lusso/MY/P150S and LML 125-150 Star/Deluxe/DLX/Stella/Belladonna. Here is the largest selection of largeframe cylinders.
T5 (5-overflow): Italian "Traversi 5" or shorter T5. The most powerful of the 125s. Unfortunately, these cylinders only fit the Vespa T5 models.
LML 4T (stroke): In order to comply with the strict exhaust emission values, LML goes the way of the 4-stroke engine. POLINI gives it the spurs.
200 cc: 200-244 cc: The royal class and dream of every Vespisti. Long-distance capability and performance. All Vespa 200 Rally/P200E/PX200 E/Lusso/MY/Cosa 200 riders will find what they are looking for here. Since the PX200 engine can also be installed in any large frame, the 200 tuning is extremely popular with all Vespa fans.
The choice of cylinder plays a major role in largeframes: a cafe racer needs a different basis than an all-rounder with which two people can comfortably go on an Alpine tour. Besides the basic rule "more cubic capacity = more power", the cylinders are divided into three classes:
TUNING ROAD
This class is intended for the normal everyday rider who does not demand top performance, but wants to achieve more power on a durable basis with relatively little effort. Faster acceleration, more powerful on hills, higher top speed. The tuning is inconspicuous in the first stages and in some cases even permissible in road traffic in the exhaust area. The noise level is kept within limits. In other words: increased performance with high suitability for everyday use. The right thing for a tour of Italy or for a ride with the Holden.
TUNING SPORT
The next category builds on ROAD tuning. Much of it is compatible. The target group is the performance-hungry everyday rider as well as those who don't want to breathe in two-stroke smoke from the rider in front of them, even during spontaneous acceleration races. Strong acceleration, top speeds beyond 120 km/h and yet high durability are the hallmarks of this class.
TUNING RACE
The top class in the scooter sector. All performance fetishists get their money's worth here. For everyone for whom the normal is not enough and who is looking for the performance limit. Tuning experience and the necessary small change are required here. The parts can be found in most racing engines, whether quartermile, lap race or dyno battle.
The material
Cast iron cylinders: have high mileages at extremely attractive prices. In the event of piston seizure, they can be honed and fitted with oversize pistons.
Aluminium cylinders: Impress with perfect durability due to better heat dissipation and the extremely hard coating of the Nicasil-coated track. Ideal for motorway or racetrack use.
Hall of Fame - the manufacturers
D.R.: The 177 is one of the most wanted in the 125/150 class, good-natured and durable.
MALOSSI: All MALOSSI cylinders are characterised by the best workmanship and high material quality. The 210 is a must for every 200cc.
POLINI: Plenty of steam at all speeds and, in combination with GS pistons, also durable.
PINASCO: Besides grey cast iron, also very nice aluminium cylinders with a reasonable price/performance ratio.
PARMAKIT: Beautiful aluminium cylinders for the big ones: air- as well as water-cooled, different spark plug positions and outlets.
QUATTRINI: The aluminium cylinders from Max Quattrini are a feast for the eyes and can be used in sport and race tuning. The 177 in the SIP Custom Basterd has a brute performance.
The variety of cylinders on offer leaves nothing to be desired, so that everyone can find the ideal cylinder for their purposes. The following applies to most racing cylinders: For racing/exhibition purposes only. Not approved for use under the German Road Traffic Licensing Regulations (StVZO), i.e. consultation with the local TÜV office is necessary.
We have provided you with more information on the cylinders: Here you will also find data sheets, performance diagrams and installation guides for most cylinders.