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Pressure in cylinder pattern in dependence on ignition timing: (a) - misfire, (b) too soon, (c) optimal, (d) too late. In a spark ignition internal combustion engine, ignition timing is the timing, relative to the current piston position and crankshaft angle, of the release of a spark in the combustion chamber near the end of the compression stroke.
The Chevrolet Spark (Korean: 쉐보레 스파크) is a city car manufactured by General Motors's subsidiary GM Korea from 1998 to 2022. The vehicle was developed by Daewoo and introduced in 1998 as the Daewoo Matiz (Korean: 대우 마티즈).
Honda J35A 3.5L V6 SOHC i-VTEC Variable Cylinder Management(VCM) Engine on 2008 Honda Inspire. Variable Cylinder Management (VCM) is Honda's term for its variable displacement technology, which saves fuel by using the i-VTEC system to disable one bank of cylinders during specific driving conditions—for example, highway driving.
Another month, another dismal sales performance for the 2014 Chevy Silverado. This highly acclaimed truck was supposed to put General Motors on an even footing with top rival Ford Motor in the ...
Low-speed pre-ignition (LSPI), also known as stochastic pre-ignition (SPI), [1] is a pre-ignition event that occurs in gasoline vehicle engines when there is a premature ignition of the main fuel charge. [2]
In spark-ignition internal combustion engines, knocking (also knock, detonation, spark knock, pinging or pinking) occurs when combustion of some of the air/fuel mixture in the cylinder does not result from propagation of the flame front ignited by the spark plug, but when one or more pockets of air/fuel mixture explode outside the envelope of the normal combustion front.
A longer hysteresis period will facilitate a more significant drop in RPMs before fuel/spark is re-engaged, and a shorter hysteresis period can help decrease that drop in RPMs. In racing applications, extremely short hysteresis is desired so you won't lose all engine power suddenly if/when you hit the rev limiter.
The double exhaust pulse would cause part of the next exhaust pulse in that bank to not exit that cylinder completely and cause either a detonation (because of a lean air-fuel ratio (AFR)), or a misfire due to a rich AFR, depending on how much of the double pulse was left and what the mixture of that pulse was. [5]