An important point is the knock resistance , which is higher in ethanol compared to ordinary gasoline,
This knock resistance is due to the higher octane of the fuel and not the burning speed.
Ethanol burns faster, however it should have more mass and take more time
For a stoichiometric mixture, the E-100 has 59.56% more mass for the same amount of air mass as the E-25 used in Brazil.
In comparison to the E-0 it will be over 70%, we can also add that normally the maximum MTB brake torque is reached with lambda 0.85 in the E-25 and 0.90 in the E-100, with that the difference is usually in around 56% between E-25 and E-100 and 66% between E-0 and
the E-100
These numbers are the result of tests on 2-stroke engines and the results are close to 4-stroke engines.
Aujourd'hui à 12:20 par EDOUARD Jean
