CYLINDERS

Elite uses forged cylinders for its high end engine systems. In forced induction engines, the Elite cylinders are mechanically and thermally interlocked with the cylinder heads using specially designed sealing rings made from a Beryllium alloy which is significantly stronger than aluminum but has a heat transfer coefficient that is actually higher than the one of the aluminum alloy of the cylinders and cylinder heads. This small but important detail allows the cylinders and cylinder heads to (a.) form a much stronger structure by being locked together through the sealing ring, (b.) support the heat transfer at the interface point without impediment (traditional stainless steel sealing systems impede heat transfer due to the much lower heat transfer coefficients of that steel), (c.) maintain the top bore much closer to the perfect round geometry for best ring sealing at the (hottest and) highest stressed part of the cylinder (top), and (d.) provide a platform that has a much more uniform structural coefficient of expansion which can be managed by using special head studs developed by Elite (so that the engine experiences more uniform mechanical stresses from the thermal deformation associated with operating temperatures). These details result in an engine system that has lower frictional losses and maintains its (higher) output throughout a much wider operating envelope than would otherwise be the case.

Elite cylinders are superior largely due to the actual sequence of manufacturing required to produce the final parts, which is just as important as the geometric dimensions required for the actual engine internals (length, sealing arrangements, cooling fin details, bores, etc.). The sequential forging steps include stress relieving the blanks in between and after the forging process in addition to using heat treating to achieve the required material properties. The resulting cylinders have (a.) a higher and very uniform heat rejection capacity, (b.) are stronger than comparable parts from other suppliers and suitable for the highest stressed forced induction engines capable of producing up to 900HP, (c.) have extremely tight tolerances and (d.) provide the best platform for piston ring sealing under normal operating temperatures and pressures.