As boost pressure rises and combustion increases, crank journals and main journal clearances tend to move and decrease. Also when used in motorsport applications such as drag racing, where the maximum engine speed (rpm) is raised over standard, oil starvation can occur in various parts of the engine causing damage or failure. HKS Oil Pumps have reviewed the design with particular attention to the rotor to increase oil flow to ensure correct oil flow throughout the engine. New improved design now includes adjustable oil relief pressure. |
 |