While having a discussion about value overlap, Technician A says that a cam grind that will benefit performance at high rpm will hurt performance at low rpm. Technician B says if it benefits performance at high rpm, it will aid performance at low rpm. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because a cam grind designed to improve high rpm performance typically does so by allowing the engine to breathe better at higher speeds, which can compromise low rpm torque and drivability due to a reduction in cylinder pressure at lower speeds.

While Having a Discussion About Value Overlap, Technician a Says