Our team of development engineers at our specialist ‘High Performance Engine Development works have been working on a unique cylinder head design for the past 3 years. Marketed as PolyQuad ® it has now been granted World Patents.

4 valve per cylinder head design is now accepted as the norm and 16V, 24V or 32V adorns the bodywork of most original vehicle manufacturers cars. For the vast majority of all but very high performance sports cars, 4 valve per cylinder engines were originally designed for racing engines running at speeds well in excess of 10,000 rpm, but have become the norm for most family road going cars which generally red line at 6500 rpm. It is universally accepted by engine development engineers that a well developed 2 valve per cylinder engine will produce more HP and Torque at low to medium engine revs (1000-3500) than a 4 valve engine of the same capacity. 4 valve engines only start to become more efficient at high rpm (over 4000 rpm).

95% of drivers in normal road going cars drive their car engines between 1500 - 3500 90% of the time, and this is exactly where PolyQuad excels.

2 valve engines generally produce more power, have lower fuel burn and less emissions at low to medium rpm than a similar capacity 4 valve engine. The general public have been led to believe that 4 valves must be better than 2 valves and has been used as a marketing ploy. To overcome the poor performance of 4 valve engines VVT (variable valve timing) was developed, but is expensive and complicated to produce.

PolyQuad is now a proven 4 valve per cylinder alternative, designed specifically to overcome poor low rpm coupled with high emissions and high fuel burn associated with 4 valve per cylinder design without the need to resort to complicated and expensive VVT (‘variable valve timing’) which many manufacturers now use. It is a fact that PolyQuad uses no more components than a conventional 4 valve per cylinder layout without VVT and is far less expensive to manufacture. VVT was designed to overcome the low power potential found in all normal 4 valve layouts. VVT is complicated, expensive and has far more wear components which may be expensive to repair as the vehicle ages. . PolyQuad manufacturing costs would be identical to a conventional 4 valve per cylinder layout and produces similar power outputs to VVT throughout the entire rev range.

Under strictly controlled independent dynamometer trials, PolyQuad consistently produced in excess of 12% more power up to 3500 rpm and then similar power output over 3500 rpm when compared to the same standard engine fitted with the original 4 valve per cylinder head. All this whilst achieving considerably lower emissions (CO and NOX) and fuel burn. Further trials are continuing including PolyQuad with and without VVT and we confident to exceed 15% more power with promises of even lower fuel burn and emissions.

PolyQuad has been designed and targeted for use as original equipment by engine manufacturers and not as an aftermarket replacement.

 

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