The maxi racing SIMONINI 78,29cc kit is a real bomb of power but is for affirmed preparers and mechanics. Its cylinder is aluminum of course, and is treated with a chrome / nykasil quite fragile admittedly. With 6 transfers and its exhaust has booster is a real monster, though the charts are slightly goodbye to the increase because they are too small can a couple and not based diets high! His diagrams to our tastes was back to 190 ° view 192 ° for exhaust and 130 ° view 133 ° has the admission to get an excellent diet high in preserving a very good torque and low speeds. Its piston is obviously in mono bulging hard chrome segment and manufactured at the famous and renowned VERTEX, again, it is prepared to roll. His head is polished hemispherical combustion chamber, however, and we regret it is not bi party (block) which does not prevent it from being a very good alloy, it is very solid and it correctly removes heat. You will think that this kit is intended for candles has short base! His well reinforced crankshaft recess is truly exceptional because it is in race 44mm and is designed for 12mm piston pin in masses studied in horizontal MINARELLI motors and simonini d.47,6 kit, you will however machining a part of housing left to spend. In no case touch the rod, it pressed against the rules of mechanics and will weaken the resistance of the latter.
The connecting rod of the crankshaft has a length of 85mm which permetteras less force on piston / segment, very wide and really well greased in head working as well as to the cage that is also included in the kit and very resistant . The crankshaft itself is normal. We have also enjoyed that book SIMONINI larger studs with the kit. There is no wedge was put to the kit because it is pre-rigged, the wedge is molded in the cylinder. The finish is very good. You have to make your squish and get several advance socket joints because you do no other than that shipped in the pack! In short, there is very big torquey kit , strong, powerful real 78,29cc reserved for mechanics and affirmed preparers. the pre-keying is shifted on the kit but we recommend e anyway with a racing ignition internal rotor.
We recommend at least: cold competition Candle base short, several joints of base plate to make the squish, racing exhaust diagrams has to define as your preparation, racing carburetor (24mm minimum), reinforced bearings Type C4 / C3 cage Celeron or riveted steel or polyamide in normal tissue, preparation (machining) to pass the crankshaft ....
This pack contains:
-piston Ø47,6mm single segment manufactured at VERTEX
-X4 Studs elongated Ø7mm X 128mm
-Vilebrequin Racing reinforced race 44mm / natural silk / pre keyed ignition / rod 85mm
-pack Reinforced gasket
-Segment End chrome domed hard D.47,6mm X 1mm
X2 crab piston clips (axis rushes)
Master cylinder 6 transfers and exhaust boosters aluminum
-Culasse Ø47,6mm high compression truncated polished aluminum
Axis-piston Ø12 X 38mm reinforced
-Cage Reinforced needle
X2 SIMONINI stickers
-Notice SIMONINI
Optional we offer a preparation course 1, this preparation is a modification of the exhaust port by increasing the charts and improvement of the duct, it increases the cylinder performance. Improved bottom skirt is also included in the amendment. Allow a little extra time for this preparation!
