Finally someone with some damn brains. That's exactly what I was saying in the last thread. You can run higher compression on 93, but you're not going to be running as much boost as a low comp motor. Again, a 10.3cr SR20 would rock on 93oct and 13-15psi. Yes, that is a valid setup. It's not for everyone, but it does work, and well.


I completely forgot that you're effectively reducing the displacement of the engine with the Miller cycle. Bah! You do get a full expansion, though. With this VCR system you get full(er) displacement. Can anyone find a better drawing of what's going on? It's really hard to see exactly how things are articulating during rotation at the limits of both modes.

That VCR main rod member doesn't look like the most robust piece I've ever seen. I'm willing to bet that this will be directed towards small displacement (in the 1.5L range) engines that will need the turbo to make enough power to propel a larger, Sentra/Altima sized car. That would keep the max torque figures manageable for the new rod arrangement. With high CR's off boost, something like that would make killer mpg's, too. They do this (small boosted engine in big car) in Europe with a 1.8L supercharged E-class, which does not make good mpgs.