There is a lot of information floating around about the Mazda 929 2.3-liter Miller Cycle V6. You should look it up.
Heres some sites:
http://www.autozine.org/technical_school/engine/petrol2.htm
http://www.mazda.com.au/articleZone.asp?articleZoneID=92
http://millercycle.quickseek.com/...