The additives act as binders, improve ignition, promote steady burning, and make manufacturing more efficient.
At the same time, the ignition timing was tweaked to improve throttle response and the camshafts revised for better high-r.p.m. performance.
In addition to eliminating the high-voltage spark plug wires, electronics allow for more precise control of ignition timing, which improves fuel efficiency, reduces emissions, and increases power.
Also, results show that maximum BMEP is between −21° to 41° and the date has a maximum BMEP at ignition timing at 31°BTDC. Figure 5 Shows that Brake Specific Fuel Consumption (BSFC) tend to improve with increase of ignition timing before top dead centre.
Ignition timing, in a spark ignition engine, is the process of setting the time that an ignition will occur in the combustion chamber (during the compression stroke) relative to piston position and crankshaft angular velocity.
Advanced ignition timing and the stoichiometric air/fuel ratio lead to thermal efficiency improvement of about 10 27% as compared to the gasoline mode.
Precise ignition timing is realized.
Homogeneous Charge Compression Ignition (HCCI) combustion lacks direct ignition timing control, instead the auto ignition depends on the operating condition.
(Her specialties were calibration, "positraction" and the ignition timing of 1955 Chevrolets).
The magnetic sensor provides position information to the electronic control module, which governs ignition timing.
The compression ignition engine tests were carried out at constant injection timing and constant ignition timing, and the spark ignition engine tests were conducted at a constant spark timing and a constant lambda value of 1.
