Comment by cromulent

It's good work, but I suspect Mahle's TJI (as used in current F1 cars) is a better bet.

  - Fuel efficiency gains over 17%
  - over 40% thermal efficiency
  - over 99% reduction in NOx
  - significant reduction in CO2

http://www.f1technical.net/news/20316

http://www.mahle-powertrain.com/en/experience/mahle-jet-igni...