Engine, Vortex VTS, OK

"Among the various innovations introduced by Vortex with the VST model, an unprecedented manufacturing process stands out: the paired crankcase boring. This further processing phase of the engine crankcase plastically represents the continuous effort, in terms of research and development, that the Engine Division of OTK Kart Group constantly makes to refine and improve its engines.. 


You can find the Homologation here
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On the occasion of the CIK-FIA homologation session, the Vortex engine range is completely renewed. 
For the OK and OKJ categories respectively, the VTS and VTJ models make their debut, as the direct successors of the Vortex DTS and DTJ, able of winning no less than five world titles - three in Junior, two in Senior - in the last four years.
Among the various innovations introduced, an unprecedented production process stands out: the paired crankcase boring. This further processing stage of the engine crankcase makes it possible to achieve a higher final quality level of the product, with positive effects both in terms of quality and repeatability of the various models produced as well as in terms of performance. The VTS also sees the introduction of a new exhaust valve design, a solution that ensures greater efficiency at low revs and improved engine performance.
The main featured inherited from the previous versions of both engines remain unchanged: lightness, assembly and use easiness, effective arrangement of mass and centre of gravity, compact dimensions and reliability.

Among the various innovations introduced by Vortex with the VST model, an unprecedented manufacturing process stands out: the paired crankcase boring. This further processing phase of the engine crankcase plastically represents the continuous effort, in terms of research and development, that the Engine Division of OTK Kart Group constantly makes to refine and improve its engines.
In fact, this production process makes it possible to achieve a higher final quality level of the product with positive effects both in terms of quality and repeatability of the various models manufactured and in terms of performance and reliability.

• Water cooled with external pump
• Roller Bearing
• Bore and stoke : 54 x 54 mm (square) 
• Maximum engine speed : 16.000 Rpm
• Ignition system : Selettra
• Cylinder with fully machined cast iron liner
• Number of cylinder / crankcase transfer : 5 / 3 
• Crankase reed valve intake 
• Fully machined intake section and transfers 
• Conrod length : 102 mm (Center to center)