Understanding hydraulic valve lifters

Understanding hydraulic valve lifters

By: Ray T. Bohacz: The most irritating aspect of valve-lash adjustment is its awkwardness; too many components require removal to perform a ten-minute task. Hydraulic valve lifters, on the other hand, require no adjustment for the most part. When adjustment is...
Carbureted Superchargers and Intercoolers

Carbureted Superchargers and Intercoolers

By Chris Beardsley:   Unlike port fuel injection systems, carburetors have a unique advantage while operating on boosted engines without an intercooler. In carbureted applications, the air charge from the supercharger is significantly warmer than ambient air....
Goodwood victory: exploiting the potential of a V-12

Goodwood victory: exploiting the potential of a V-12

By Freddie Heaney:   On September 12, on his 67th birthday, race engine builder Bob Bartlett of V&B Engines of Chatham, Virginia, provided sufficient motive power for Joe Colasacco to win the Glover Trophy at the 2018 Goodwood Revival. Driving John Surtees’...