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Cylinder Head MMW PX200 for

PINASCO 215cc, art. no.
81110000 for Vespa 200 Rally
/P200E/PX200 E/Lusso/`98/MY
/Cosa 200
Ø 69,5 mm, stroke 57mm, long
thread, squish band 0,0 mm,
10,5:1,
`07 version, with "POLINI"
piston

FOR RACE USE ONLY

Harald Grillhiesl is the boss of the small tuning shop, MMW. He has made a name for himself producing tuning cylinder heads on the mainland European scene. Hardly anyone knows their way around squish bands, compression ratios and combustion chambers like he does. The MMW cylinder heads are produced precisely engineered, with exact angles and a very clean gasket surface area. Years of experience, modifying hundreds -if not thousands- of cylinder heads, is shown in the obvious high quality of these items.

The basis for the PX200 MMW cylinder head is the standard original PIAGGIO part. The combustion chamber is re-milled with a CNC process and so receives a new profile layout. This is designed for an improved relation to the shape of the piston crown, as well as a better fit to the following cylinders bore diameters: MALOSSI Road and Race, POLINI, PINASCO, POLOSSI, and the original PIAGGIO cylinder. We also have long stroke crankshaft cylinder heads available for most cylinder kits so eliminating the need for time consuming experimentation with varying gasket thickness's. Consequently an ideal cylinder head is available for virtually all motor setups. Some come supplied with an O-ring gasket as necessary. Knocking and pinking, those dreaded sounds announcing an imminent heat seizure or worse, is eliminated with the use of this cylinder head model. That is, if the reason for your seizure was an incorrect compression ratio...

Conclusion: Higher performance, knocking and pinking eliminated and a more enduring motor, what more could you wish for?

 

Aluminium construction/ diameter 68.5-69.5mm/ 57-60mm stroke compatible/ long spark plug thread/ O-ring gasket as per kit

Aluminium, CNC milled combustion chamber, long spark plug thread, squish band 0.0-1.3mm, compression ratios between 1:10.5 – 1:12, O-ring as necessary

 

SIP-TIP: Do not forget to order new spark plugs, base and head gaskets as well as pack-up plates to fit this cylinder head kit.

 

The PINASCO setup is similar to the standard OE PIAGGIO 200cc cylinder. The gap between the top of the piston and the end of the bore of the cylinder is even larger with the use of a 57mm stroke crankshaft at 2.1mm. Add that to the clearance in the squish band recess of the PINASCO cylinder head and you are left with an effective squish band clearance of over 3mm. This leads to inefficient combustion and a lost power potential.

MMW have taken on this problem and started production of a cylinder head for the current PINASCO performance cylinder kit assembly that has a piston similar to the POLINI version. The MMW cylinder head for the PINASCO cylinder kit has no recess in the squish band area which, with the use of a 57mm stroke crankshaft, gives an acceptable squish band clearance of about 2.1mm. The use of a longer 60mm stroke crankshaft requires the inclusion of the MMW PINASO cylinder head with a 0.6mm recess in the squish band area. This then gives an effective squish band clearance of 1.2mm.

57mm stroke: without extra gaskets or spacers has an effective squish band clearance of 2.1mm

60mm stroke: without extra gaskets or spacers has an effective squish band clearance of 1.2mm


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icon scootermodels This product fits the following models
  VESPA
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA 200 Rally 200 VSE1T 2T AC `72-`79
VESPA COSA 1 200 VSR1T 2T AC `88-`91
VESPA COSA 2 200 VSR1T 2T AC `90-`96
VESPA P200E / PX200 E 200 VSX1T 2T AC `77-`86
VESPA PX200 E `98 / Millenium 200 VSX1T 2T AC `98-
VESPA PX200 E Lusso/ EFL/ Arcobaleno / Elestart 200 VSX1T 2T AC `83-`97

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