This reminds me how formula 1 cars are starting to use pre chambers in their engines in order to run an air fuel mixture that is as lean as possible.

As the price for fuel goes up, lean air fuel mixes for gasoline cars will soon be king of the road, since they are very efficient. Then again, I'd imagine the cost of producing such engines to be more expensive than the regular gasser...

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1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.