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Racing Cylinder POLINI GS

130cc by Worb5 for Vespa 90
-125/PV/ET3/PK/S/XL/2,
Ø 57,0mm, cast iron, 7 ports,
stroke 51mm,
with cylinder head,
with GS piston, MALOSSI
cylinder head and SIP data
sheet

FOR RACE USE ONLY

And the Winner is - POLINI. Welcome to the smallframes premier league.

The POLINI 130cc is an all-rounder, suitable for all applications: from the relaxed plug-and-play city cruiser with 19/ 24mm carburettor on a disc valves, to the heavily modified cylinder, membrane inlet and 30mm carburettor.

The POLINI is THE entry cylinder into the famous ESC (Euro Scooter Challenge) racing series. Successful for years, with countless winners of tough duels and racing battles. This is simply the optimal basis for cylinder modifications or conversions. 7 transfer ports combined with a solid ASSO piston equipped with 1.5mm thick ductile cast iron rings make up to 12.2 PS possible without any extra modifications. To create a real high flyer the port timings can be adjusted throug milling the upper end, raising it´s height with a gasket spacher and enlarging the ports. At this stage the highend piston rings made by GRAND-SPORT should be considered or even a complete piston replacement.

In order to optimise the port timings, to raise the cylinders height or to comencate for changed compression heights we have gasket spacers available with various thicknesses. To be able to enlarge the transfers to the max in a symetric fashion the base of the cylinder should be removed and replaced with gaskets spacers of an appropriate thickness.

With the CNC-machined MMW cylinder heads you can get even more performance out of the POLINI.

With POLINI, the reed valve intake manifolds are unfortunately not available in sizes above 24/ 25mm. Anyone who wants something bigger will have to do some work themselves. For V50/PV/ET3 2-hole and from a carburettor size of 28mm, the once-again growing number of fans of disc valves can use the FALC or the PARMAKIT intake manifolds.

Tip: Anyone who wants to benefit from years of tuning experience and to save money is advised to go for the modified WORB5/POLINI Conversions.

Conclusion: A timeless cylinder that still has bite even now. Torque from below, ideal entry product for all of those for whom power and service life are important. Reliable tourer and an ideal candidate for two-person use. With the right equipment and suitable adaptation, engine performances above 20 PS are quite possible.

 

Cast iron/ 57mm bore/ 7 transfer ports/ 130.14cc

Cast iron cylinder, stroke 51mm, 7 transfer ports, pistons with 2x 1.5mm piston rings, 8mm exhaust studs, original POLINI cylinder head is also provided, compression 11.4:1, incl. gasket set. Jets should be adjusted. Fits all Vespa PV/ET3/PK/XL/XL2 models, except PK automatic. The crankcase should be matched to fit larger cylinder transfers.

 

SIP- TIP: Adjusting the main jet and installing a new spark plug is a must. Racing crankshaft with 20/20 or 24/25mm cone, racing exhaust like PM40, VSP Race, FRANZ, e-ignition like VESPATRONIC or PARMAKIT, 20/ 24mm carburettor. Primary 2.54, up to max. 2.34. GS piston/ piston rings recommended. CNC-machined MALOSSI cylinder heads have also proven their worth.

 

Stoffi, SIP-STOFFI Racing Team, Deutscher Meister ESC 2006/2007:

"In 2006 and 2007 we won the German championship title of the ESC with a modified, raised POLINI. We also won a 4-hr. race, which also says a lot about the stability and endurance of the engine. With VSP race exhaust, PARMAKIT ignition, etc. the engine had 18.5 PS and was very pleasant and smooth to ride."

 

Alex, SIP-Mann, Juli 2010:

 "Have fun with low budget tuning: POLINI 130mm set higher, POLINI reed valve, Mazzu crankshaft, POLINI racing exhaust --> 12.5 PS. A lot of oomph for less money, and absolutely reliable"

Race Cylinder POLINI GS 130 cc, modified, with GS piston and MALOSSI cylinder head - powerfully modified 130cc POLINI.

There's an enormous potential in the 130er that can be awakened with further modification. If you don't feel up to doing the job yourself, there's the modified Worb5 version available.

This cylinder is completely modified, sealed above and below and modified to fit a GRAND-SPORT Piston. Included in delivery is a MALOSSI Cylinder Head, which is also modified to fit the GS piston, and a 1.0 mm base gasket, so the enlarged/opened sealing surface can handle a boost channel. We recommend milling a port channel into the cankcase; laborious, but effective.

 

 


Customers also searched for this article with:  race cylinder, performance cylinder, race cilinder, tuning cylinder


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$374.20
Art.No.
140005GS
4,050g / piece
Stock on hand   Amount

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icon scootermodels This product fits the following models
  PIAGGIO
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
PIAGGIO APE 50 50 TL1-2T 2T AC `69-`80 crankshaft with 51mm stroke necessary
PIAGGIO APE 50 FL / FL2 50 TL6T 2T AC `89- crankshaft with 51mm stroke necessary
PIAGGIO APE 50 FL3 50 TL5T 2T AC `96- crankshaft with 51mm stroke necessary
PIAGGIO APE 50 Mix 50 2T AC `99- crankshaft with 51mm stroke necessary
PIAGGIO APE P 50 ( Vespa Car ) 50 TL3T 2T AC `80- crankshaft with 51mm stroke necessary
PIAGGIO APE TM P 50 / Elestart 50 TL4T 2T AC `85- crankshaft with 51mm stroke necessary
  VESPA
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA 50 / N 50 V5A1T 2T AC `63-`71 crankshaft with 51mm stroke necessary
VESPA 50 L 50 V5A1T 2T AC `66-70 crankshaft with 51mm stroke necessary
VESPA 50 R 50 V5A1T 2T AC `69-`83 crankshaft with 51mm stroke necessary
VESPA 50 Revival 50 V5R1T 2T AC `90- crankshaft with 51mm stroke necessary
VESPA 50 S 50 V5SA1T 2T AC `63-`84 crankshaft with 51mm stroke necessary
VESPA 50 Special 50 V5A2T 2T AC '69-'72 crankshaft with 51mm stroke necessary
VESPA 50 Special 50 V5B1T 2T AC '72-'75 crankshaft with 51mm stroke necessary
VESPA 50 Special 50 V5B3T 2T AC '75-'83 crankshaft with 51mm stroke necessary
VESPA 50 Special Elestart 50 V5B4T 2T AC '75-'76 crankshaft with 51mm stroke necessary
VESPA 50 Special Elestart 50 V5B2T 2T AC `72-`75 crankshaft with 51mm stroke necessary
VESPA 50 Special Elestart 50 V5A3T 2T AC '69-'72 crankshaft with 51mm stroke necessary
VESPA 50 SR / Sprinter 50 V5SS2T 2T AC `71-`79 crankshaft with 51mm stroke necessary
VESPA 50 SS / Super Sprint 50 V5SS1T 2T AC `65-`71 crankshaft with 51mm stroke necessary
VESPA 90 90 V9A1T 2T AC `63-`84
VESPA 90 Racer 90 V9SS2T 2T AC `71-`74
VESPA 90 SS Super Sprint 90 V9SS1T 2T AC `65-`71
VESPA 100 (UK) / 100 Sport (US) 100 V9B1T 2T AC `78-`90
VESPA 125 125 VMA1T 2T AC `65-`67
VESPA 125 Primavera 125 VMA2T 2T AC `67-`83
VESPA 125 Primavera ET3 125 VMB1T 2T AC `76-`90
VESPA PK 50 50 V5X1T 2T AC `82-`84 crankshaft with 51mm stroke necessary
VESPA PK 50 / S Automatica / Elestart 50 VA51T 2T AC `84-`86 crankshaft with 51mm stroke necessary
VESPA PK 50 S / Elestart 50 V5X2T 2T AC `82-`84 crankshaft with 51mm stroke necessary
VESPA PK 50 S Lusso / Elestart 50 V5X2T 2T AC `85-`88 crankshaft with 51mm stroke necessary
VESPA PK 50 SS / Elestart 50 V5S1T 2T AC `83-`86 crankshaft with 51mm stroke necessary
VESPA PK 50 XL / Elestart 50 V5X3T 2T AC `85-`90 crankshaft with 51mm stroke necessary
VESPA PK 50 XL FL 50 V5N1T 2T AC `90- crankshaft with 51mm stroke necessary
VESPA PK 50 XL HP 50 V5N2T 2T AC `91-`91 crankshaft with 51mm stroke necessary
VESPA PK 50 XL N NUOVA 50 V5X5T 2T AC `89-`90 crankshaft with 51mm stroke necessary
VESPA PK 50 XL Rush / Elestart 50 V5X4T 2T AC `88-`90 crankshaft with 51mm stroke necessary
VESPA PK 50 XL2 / Elestart 50 V5X3T 2T AC `90- crankshaft with 51mm stroke necessary
VESPA PK 50 XLS 50 V5S2 2T AC `86- crankshaft with 51mm stroke necessary
VESPA PK 80 S / Elestart 80 V8X5T 2T AC `82-`86
VESPA PK 80 S Lusso / Elestart 80 V8X5T 2T AC `85-`88
VESPA PK100 S / Elestart 100 V9X1T 2T AC `82-`84
VESPA PK100 XL 100 V9X2T 2T AC `86-`90
VESPA PK125 125 VMX1T 2T AC `82-`85
VESPA PK125 ETS / Elestart 125 VMS1T 2T AC `84-`85
VESPA PK125 N NUOVO (FL) 125 VMX7T 2T AC `90-`91
VESPA PK125 S / Elestart 125 VMX5T 2T AC `82-`84
VESPA PK125 XL / Elestart 125 VMX6T 2T AC `86-`90
VESPA PK125 XL2 125 VMX6T 2T AC `90-

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