retiredpop
Active VIP Member
This is an interesting design. It's actually a 2 stroke even though the title of article says one stroke.
www.thedrive.com
Company Builds Powerful 500cc 'One-Stroke' Engine, Immediately Installs It in a Miata
INNengine's half-liter opposed-piston engine makes 120 horsepower in an ultra-compact, super-efficient package.
www.thedrive.com
