kit high Ø47mm 75cc DR Racing cast 10 transfers Vespa scooter 50cc 2T PK, HP, XL, SPECIAL, Piaggio APE ...

Attention high engine exceeding the regulatory capacity of 50cc, for competition on the track, run ...

Here are the top engine iron minacrom (high quality materials) with high compression cylinder at DR Racing. A complete kit for engine performance and exceptional reliability standards. Its displacement reached 74,60cc specifically for 47mm diameter bore with a cylinder with no less than 8 admission and transfer of exhaust booster revised upwards compared to the model with 3 or 6 transfers, engine performance significantly improved.



His stroke is 43mm with a compression ratio of 1: 10.7. Clearly, a high motor ideal for refurbishment and additional quality performance. The cylinder head is a model all-aluminum, lightweight and designed in materials such as cooling will be improved. Hemispherical chamber with a smooth and rough finish.



The piston chooses to accompany this high engine is a bi ASSO segments with specific treatment ensures better heat exchange and performance to boot. The latter has a high domed cap increasing the compression ratio considerably, a preparation on the transom via two openings to improve the filling of the intake and rear grease to the cylinder.



Two treated steel segments, chrome specific shape at the piston pins. Through the thickness of 1.5 mm of the latter, the torque will be greatly improved with the increased friction at the expense of high modes. Of course, supplied with its axis Ø12 X 40 mm length and 2 clips G.



Delivered complete as presented. As you can see, this little monster performance combines strength, price, reliability, durability ....



We recommend to accompany this high engine with at least: a carburetor 19 or 21 mm for the better, a setting you change with increase or decrease in weight of your wheels, a spark unbridled racing, cold candle racing, oil 100% synthetic engine, racing exhaust relaxing ...

contains:
-cylinder Cast minacrom 8 transfers and exhaust to boost
-Culasse High compression aluminum
-piston Bi segment
-Segments Chromium steels
Axis-piston Ø12 X 40 mm
-Clips G
-pack seal
-Stud Exhaust with screws

Installs on:

- Piaggio Vespa 50 2T 67-82, Vespa FL 50 2T 90-90, Vespa FL2 AUTOMATICA 50 2T 90-91, FL2 Vespa HP 50 2T 91-97, Vespa 50 N 2T 89-90, Vespa PK 50 2T 82-84 Vespa PK AUTOMATICA 50 2T 84-89, Vespa PK XL 50 2T 85-88, Vespa PK XL PLURIMATIC 50 2T 85-90, VespaPK XL RUSH 50 2T 88-89



Optional we offer a preparation course 1, this preparation is a modification of the channels and the exhaust port by increasing the charts and improvement of the duct, it increases the cylinder performance. Improved piston and bottom skirt is also included in the amendment. Allow a little extra time for this preparation!