Thinking Inside the Box: Repositioned turbocharger, dual VVT improve Subaru's 2.5L H-4 engine

摘要

PAST U.S. NAVY AND AIR FORCE FLIGHT STUDENTS WILL WARMLY recall their first trainer, the T-34 Mentor. Most of these two-place, bubble-canopied, prop-driven Beechcrafts were powered by a 225-hp Continental flat-six engine. Smooth, sonorous and (thankfully) reliable, this compact opposed-piston beauty struck some as a little like an airborn Porsche "boxer" mill.