:ponder VVT has nothing to do with interference. if you float a valve by over revving it( which will cause the valve spring to collapse) the valve is “floating” for a period of time and can make contact with the piston.
:ponder VVT has nothing to do with interference. if you float a valve by over revving it( which will cause the valve spring to collapse) the valve is “floating” for a period of time and can make contact with the piston.