Originally Posted by bboy
I've never seen a FI car with a 12:1 CR. Saab had that variable compression engine that might have gotten close.
The Saab variable compression engine went as high as 14:1 and as low as 8:1. Pretty freaking sick, but the complexity is what held it back. Who wants to drive a car with an experimental and unproven engine? Probably less than 1% of Saab's market base.
It appears that they are talking about the N/A engine, though, after reading that article.
A 12:1 FI engine is possible with vtec, but under boost it would be extremely inefficient. It's probably for the best that they not do it. That said, it would still be pretty freaking sick if they did.