I have a Honda Civic 1.6 Petrol SE Executive VTEC, it's 2001. When does the VTEC kick in?

When does the VTEC kick in? I want to use it but I dont know when it engages, or can barely here it or:When does the VTEC kick in? I want to use it bu

When does the VTEC kick in? I want to use it but I don't know when it engages, or can barely here it

or:When does the VTEC kick in? I want to use it but I don't know when it engages, or can barely here it

Tags:2001,petrol,