Cylinder heads can pretty dirty over time. They get filled with carbon and other deposits that can eventually rob your engine of airflow, fuel and power. For that reason, cleaning cylinder heads is an important thing to do on a performance engine, especially if you have a direct injection head. Danny talks about techniques for
In 2009, a 3.5 liter twin turbocharged V6 engine was offered as an option in the Ford F-150. It was badged with the name EcoBoost and has since been a strong competitor in terms of torque and horsepower for a full sized truck.
Direct injection is becoming standard on more and more late-model vehicles in both gasoline and diesel versions. These systems can be a diagnostic challenge, but with the right foundation, problems can be solved profitably. A better understanding of how they work can help you help your installer customers do a better job.
The 1.4-liter gasoline engine is one of Volkswagen’s latest EA211 series of small engines. This features lightweight aluminum construction, an integrated (into the head) exhaust manifold, and a toothed-belt drive for its double overhead camshaft valvetrain that incorporates variable intake and exhaust timing.
The LT1 now features direct injection, AFM (Active Fuel Management), continuous variable valve timing, and a new combustion system that incorporates 11.5:1 compression ratio. The LT1 combustion system is the most intensely analyzed, developed and optimized system in GM history.