21. In order to check the amount of the air / fuel mixture, air fuel ratio meters are often used. 22. In a typical chemical reaction, the air-fuel ratio must be a minimum of 14 : 1 ( see Stoichiometry ). 23. The newer Honda stratified charge ( lean-burn engines ) operate on air fuel ratios as high as 22 : 1. 24. At a stoichiometric air-fuel ratio, the exhaust gas temperature is different from that in a lean or rich air-fuel ratio . 25. At a stoichiometric air-fuel ratio , the exhaust gas temperature is different from that in a lean or rich air-fuel ratio. 26. These " bolt-on " modifications alter the way that the engine flows, often causing the air to fuel ratio to change. 27. :: This link says lambda is the symbol for air / fuel ratio ( in automotive or mechanical engineering, presumably ). 28. The speed with which the mixture burns depends also on the octane rating of the fuel and on the air-fuel ratio . 29. The lean burn mode gets the Air to Fuel ratio above the 12.4 Stichiometric ratio and thus enables extra fuel saving. 30. Stable combustion is achieved by using less fuel than conventional direct injection engines which have an air-fuel ratio of 40 : 1.
