At Circle Track, we're all about helping you do more for yourself. But sometimes that's just not realistic. That's not casting doubts on the intelligence of our readership. Just like your mom, we ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

Does your engine need a valve adjustment? It depends on the age, condition and brand of vehicle you’re driving. Due to the popularization of roller-follower valve train designs that reduce friction ...

Camshafts are simple devices, but important ones. Modern engines can have one or more intake and exhaust valves, and it's the camshaft's job to open valves precisely as the engine runs, supplying the ...

The choke valve in an engine's carburetor, whether it's a Holley carburetor or another brand, helps a cold engine start by restricting some of the airflow into it. When the engine is cold, the choke ...

If you've been following along with us, Glenn Sands, and Valley Head Service during the last few months, you can probably appreciate just how many hours it really takes to carefully blueprint ...

EL SEGUNDO, Calif. -- In a playful moment, Ron Goldstein, elegant in his pinstriped suit, is using electronically-controlled engine valves to tap out the familiar beat of "Shave and a Haircut." The ...

As a vehicle's engine operates, the intake and exhaust valves open and close rapidly while the pistons move up and down in the cylinder. These mechanical actions require a constant supply of hot oil ...

The theory behind one man (or woman) being the caretaker of a single engine as it rolls down the assembly line is not new. Other performance-machine makers, such as Ducati, have experimented with it ...

Taking care of your vehicle is vital to ensure it stays in great condition. Your brakes could give you trouble someday, or your suspension could require tinkering, inevitably leading you to an auto ...