All late model original equipment engines with computerized engine controls have a KNOCK SENSOR to protect the engine against detonation. If the knock sensor detects vibrations that feel like detonation, it signals the engine control computer to momentarily retard spark timing which lessens the risk of detonation.
Dear Colleagues, The Guest Editor is inviting submissions to a Special Issue of Energies on the subject area of “Rotating Detonation Engines”.Recent years have witnessed a notable increase in endeavors to investigate unsteady combustion processes that offer a prospective increase in stagnation pressure—and therefore fuel efficiency—due to constrained heat release.
Homogeneous-dilution model of partially-fueled pulse detonation engines. 9772-9783. Paper presented at 42nd AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, United States. Paper presented at 42nd AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, United States.
Detonation is a great thing if you're taking in a fireworks show or maybe watching MacGyver. Inside your engine? Most engines are just fine on standard 87 octane; however, engines with high compression (9.0:1 and over) or forced induction (blowers or turbos) may require 89 or higher octane.