In depth: Acura's 2.3L turbocharged I-4 engine
by Merritt Johnson (RSS feed) on Nov 22nd, 2007 at 5:03PM
When Acura designed the RDX, they wanted to give it a lightweight mill that was powerful enough to compete in a class rife with six-cylinder power. A V6 would provide the desired output, but it would add too much mass over the front axle, so instead, Acura decided to slap a turbo onto a four-cylinder and boost output accordingly. Honda, Acura's parent company, has developed some of the best performing four bangers in terms of horsepower-per-liter, so the engineers had a lot of innovation at their fingertips. The package put together for the RDX is a 2.3-liter inline-four, complete with... Read More
