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. A cam grind that is designed to improve performance at high rpm will generally sacrifice low-end torque and performance. This is because the cam profile is optimized for the higher RPM range and cannot provide the necessary valve lift and duration at lower RPMs. Conversely, a cam grind optimized for low-end power will typically sacrifice top-end performance.

While Having a Discussion About Value Overlap, Technician a Says