Question

The average inches of vacuum at idle for a performance camshaft with a high lift and large overlap duration are around 15" of vacuum.

Select one:
O True
O False
e

Answer 1

The average inches of vacuum at idle for a performance camshaft with high lift and large overlap duration is lower than the average vacuum in stock engines.

Step-by-step explanation:

The statement is False.

Vacuum at idle for a performance camshaft with a high lift and large overlap duration is typically lower than the average vacuum in stock engines.

A high-lift camshaft with large overlap duration reduces the pressure differential in the intake manifold, resulting in lower inches of vacuum. Typically, it falls within the range of 5-10 inches of vacuum.

Learn more about performance camshaft