Guran wrote:Cool facts for the 86? Bore = 86mm, Stroke = 86mm, Exhaust diameter =86mm (or 50mm for the BRZ).
When it became apparent that the engine in the 86/BRZ was a 2.0L flat four from Subaru, I had assumed it would be a revised version of the FB20 used in the Impreza, Forester, etc (84mm bore x 90mm stroke), but slightly bored and shortened to get the 86mm/86mm dimensions. But if
this information is to be believed, the 86/BRZ actually uses an FA20 engine that shares little in common with the FB20 engine, with a different block, head, connecting rods, and pistons. Of course, the FA also features direct injection (from Toyota) and variable valve timing. Interesting.