Horsepower and torque are all about cylinder pressure. Compression ratio, cam timing, cylinder head flow, and all the rest of the goodies that go into an engine aren't worth much if what enters the ...

To celebrate HOT ROD's 75th anniversary, we teamed up with CASTROL GTX to bring you some of the stories that exemplify the core of what HOT ROD is and reflect the brand's influence on America's car ...

Compression: An automotive term used by everybody, forever. Let's get into some detail and maybe develop a better understanding. Pressure, and more pressure: It's a must-have to produce power within ...

Horsepower: 2,500. Cubic inches: 430. Boost pressure: 45 psi. Cylinder pressure: Absolutely ridiculous. Running 6.80s at nearly 210 mph, today’s 275 drag radial door-slammers incinerate the ...