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See searches and references containing IGNITION TIMING!IGNITION TIMING
Timing of the release of a spark in a combustion engine
In a spark ignition internal combustion engine, ignition timing is the timing, relative to the current piston position and crankshaft angle, of the release
Ignition_timing
Device in the ignition system of an internal combustion engine
Hall-effect or optical) to control the timing of the ignition coil charging. In older distributors, adjusting the ignition timing is usually achieved through both
Distributor
Electric spark system to ignite a fuel-air mixture
Ignition systems are used by heat engines to initiate combustion by igniting the fuel-air mixture. In a spark ignition versions of the internal combustion
Ignition_system
compression ignition engines are diesels in which the fuel is mixed with the air after the air has reached ignition temperature. In this case, the timing comes
Component parts of internal combustion engines
Component_parts_of_internal_combustion_engines
Visual indicator of engine timing
A timing light is a stroboscope used to dynamically set the ignition timing of an Otto cycle or similar internal combustion engine equipped with a distributor
Timing_light
Timing of valve closing in engines
In a piston engine, the valve timing is the precise timing of the opening and closing of the valves. In an internal combustion engine those are usually
Valve_timing
Part of an internal combustion engine
Manufacturer-specification timing belts may stretch at high rpm,[citation needed] retarding the cam and therefore the ignition. Stronger aftermarket belts
Timing_belt_(camshaft)
Form of internal combustion
provides direct control. Engines must be designed so that ignition conditions occur at the desired timing. To achieve dynamic operation, the control system must
Homogeneous charge compression ignition
Homogeneous_charge_compression_ignition
Topics referred to by the same term
synchronise to an ensemble Color timing, photochemical process of altering and enhancing the color of an image Ignition timing, timing of piston and crankshaft
Timing
Type of internal combustion engine that uses compression to create combustion
A diesel engine is an internal combustion engine in which ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due
Diesel_engine
Part of an engine's ignition system
An ignition magneto (also called a high-tension magneto) is an older type of ignition system used in spark-ignition engines (such as petrol engines). It
Ignition_magneto
Devices that measure magnetic field strength using the Hall effect
used in distributors for ignition timing (and in some types of crank- and camshaft-position sensors for injection pulse timing, speed sensing, etc.) the
Hall-effect_sensor
Positions of an engine's piston at the top or bottom of its stroke
timing marks showing the recommended ignition timing settings as decided during engine development. The timing marks can be used to set the ignition timing
Dead_centre_(engineering)
Engine ignition system
Capacitor discharge ignition (CDI) or thyristor ignition is a type of automotive electronic ignition system which is widely used in outboard motors, motorcycles
Capacitor_discharge_ignition
System for spark-ignition engines
Dual Ignition is a system for spark-ignition engines, whereby critical ignition components, such as spark plugs and magnetos, are duplicated. Dual ignition
Dual_ignition
Problem in internal combustion engines
be prevented by any or all of the following techniques: retarding ignition timing the use of a fuel with high octane rating, which increases the combustion
Engine_knocking
Type of electrical switch
the ignition systems of spark-ignition internal combustion engines. The switch is automatically operated by a cam driven by the engine. The timing of operation
Contact_breaker
Combustion chamber capacity ratio
or damage the engine if knock sensors are not present to modify the ignition timing. Diesel engines use higher compression ratios than petrol engines,
Compression_ratio
Optimisation of engine performance
ratio, carburetor balance, spark plug and distributor point gaps, and ignition timing were regular maintenance tasks for older engines and are the final
Engine_tuning
Indicator within an internal-combustion engine
A timing mark is an indicator used for setting the timing of the ignition system of an engine, typically found on the crankshaft pulley (as pictured)
Timing_mark
Automobile fuel ignition system component
An ignition coil is used in the ignition system of a spark-ignition engine to transform the battery voltage to the much higher voltages required to operate
Ignition_coil
Valvetrain configuration
repaired, since the timings such as ignition and valve movement will usually be off. The first known automotive application of timing belts to drive overhead
Overhead_camshaft_engine
Car parts used to control the vehicle
which are automated in modern passenger cars, were the choke valve, ignition timing, and spark arrestor. In the past, all cars had manual controls for
Car_controls
Method of reducing turbo lag on performance cars
turbo lag in racing or performance applications. It works by retarding ignition timing and adding extra fuel (and sometimes air) to balance an inherent loss
Antilag_system
Mechanical component that converts rotational motion to reciprocal motion
engines (to operate the intake and exhaust valves), mechanically controlled ignition systems and early electric motor speed controllers. Camshafts in piston
Camshaft
Reciprocating internal combustion engine
distributorless ignition system with a coil for each spark plug. This system forgoes the use of a conventional distributor-based ignition timing system in favor
Honda_K_engine
Japanese motorcycle
versatility of Honda's intention for the bike. 1994: Updates to the ignition timing due to adoption of the pent-roof combustion chamber design, the internal
Honda_CB400_Super_Four
Devices in automobiles to charge the battery and power the electrical system
provided the high voltage needed to generate ignition sparks. (This was different from a true ignition magneto, which generates high voltage directly
Alternator_(automotive)
Reciprocating internal combustion engine
walls. This propagation takes time to fully occur however, so optimal ignition timing is dictated by the speed of this propagation so that the peak of the
Honda V6 hybrid Formula One power unit
Honda_V6_hybrid_Formula_One_power_unit
Event in a spark-ignition engine
Pre-ignition (or preignition) in a spark-ignition engine is premature ignition of the air/fuel mixture in the cylinder, before the spark plug fires. Pre-ignition
Pre-ignition
Petrol engine with an uneven firing order
or in close succession. This is achieved by changing the ignition timing, changing or re-timing the camshaft, and sometimes in combination with a change
Big-bang_firing_order
Exhaust-powered forced-induction device for engines
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Turbocharger
Engine management system
is an engine management system in the Saab Trionic range. It controls ignition, fuel injection and turbo boost pressure. The system was introduced in
Trionic_T5.5
Device that generates sparks in internal combustion engines
kernel will make the engine run as though the ignition timing was delayed, and a large one as though the timing was advanced.[citation needed] A spark plug
Spark_plug
Electronic throttle control system used in motorcycles and vehicles
control unit (ECU), which regulates fuel injection, air intake, and ignition timing to control engine power output. In a conventional motorcycle or car
Ride-by-wire
Instrument used to study object movement
common examples. A stroboscope used to set the ignition timing of internal combustion engines is called a timing light. In its simplest mechanical form, a
Stroboscope
Type of piston engine valvetrain design
emissions. In 2008, the first production pushrod engine to use variable valve timing was introduced in the Dodge Viper (fourth generation). OHV engines have
Overhead_valve_engine
Internal combustion engine type
needing to change the propeller. These motors are compression ignition, so no ignition timing issues and little difference between running forward and running
Two-stroke_engine
Reciprocating engine with a rotating crankcase
their upper rev limits, which meant more power. Improvements in valve timing, ignition systems, and lightweight materials made these higher revs possible
Rotary_engine
Component of an internal combustion engine
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Cylinder_head
Means of cooling parts of an engine to allow more power
a supercharger, turbocharger, or modifications such as aggressive ignition timing. Depending on the engine, improvements in power and fuel efficiency
Water_injection_(engine)
Ignition system used in some four-stroke cycle internal combustion engines
precision of this drive is now less critical (ignition timing is more critical for engine performance than valve timing): engines continue to run adequately even
Wasted_spark_system
System to limit ice on aircraft surfaces
resolved by speeding up the inflation/deflation cycle, and by alternating the timing of adjacent cells. Testing and case studies performed in the 1990s have
Ice_protection_system
Machine component used to compress or contain expanding fluids in a cylinder
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Piston
Reciprocating internal combustion engine
eliminating a distributor in favor of fully electronic ignition timing. Unlike the M50 engine, the M42 ignition system does not use a coil-on-plug system, relying
BMW_M42
Internal combustion engine designed to run on gasoline
use spark ignition. High voltage for the spark this may be provided by a magneto or an ignition coil. In modern car engines, the ignition timing is managed
Petrol_engine
Type of carbureted engine
A carbureted compression ignition model engine, popularly known as a model diesel engine, is a simple compression ignition engine made for model propulsion
Carbureted compression ignition model engine
Carbureted_compression_ignition_model_engine
Series of engine management system
Automobile. It consists of an engine control unit (ECU) that controls ignition timing, fuel injection, and acts as a boost controller.The name 'Trionic'
Trionic
Oscillating lever in engine
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Rocker_arm
Inductive discharge ignition system
The Delco ignition system, also known as the Kettering ignition system, points and condenser ignition or breaker point ignition, is a type of inductive
Delco_ignition_system
Pin that holds connecting rod to piston head
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Gudgeon_pin
External mixture preparation system for internal combustion engines
external mixture formation. It is commonly used in engines with spark ignition that use petrol as fuel, such as the Otto engine, and the Wankel engine
Manifold_injection
Robust aircraft electronic recording device
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Flight_recorder
Electronic ignition system
computer-controlled engines in conjunction with fixed-timing distributors, as the computer controls the ignition timing. The pick-up coil is not serviced separately
High_energy_ignition
Import
engine management systems to control the fuel injection or the ignition system timing and other engine parameters. Before electronic crank sensors were
Crankshaft_position_sensor
Automotive technology
the restriction caused by the throttle valve, in a reciprocating spark ignition piston engine, a partial vacuum (lower than atmospheric pressure) exists
Inlet_manifold
Italian motorcycle
180° crankpin phasing and ignition timing on the right hand side of the engine till 1980. Then in 1981 the ignition timing, which was by then electronic
Laverda_Jota
Pressure difference generated in petrol engines
other effects (such as valve float, turbulence in the cylinders, or ignition timing) limit engine speed so that the manifold pressure can increase—but
Manifold_vacuum
Standard measure of the performance of an engine or aviation fuel
by the fuel being used. In modern computer-controlled engines, the ignition timing will be automatically altered by the engine management system to reduce
Octane_rating
Reciprocating internal combustion engine
advancing or retarding the ignition timing. A certain amount of skill and experience was required to find the optimal spark timing for any speed and load
Ford_Model_T_engine
Internal combustion engine type
this stroke the piston compresses the air-fuel mixture in preparation for ignition during the power stroke (below). Both the intake and exhaust valves are
Four-stroke_engine
Reciprocating internal combustion engine
(1,295 cc) Compression ratio: 9.5:1 Ignition timing (with vacuum advancer off): 10 degrees BTDC Ignition timing (as per Haynes Databook): 5 degrees BTDC
Toyota_E_engine
Car engine
diaphragm to advance ignition timing at part-throttle for economy and emissions, and came in single-point in the Camaro, with an ignition point cam designed
Chevrolet small-block engine (1954–2003)
Chevrolet_small-block_engine_(1954–2003)
Family of four-cylinder, air-cooled, horizontally opposed, piston aircraft engine
at 2450 rpm, dry weight 236 lb (107 kg) Similar to O-235-C1 except ignition timing, lower rpm and power. Optional 2 position or automatic propeller governor
Lycoming_O-235
Reciprocating internal combustion engine
Compression Ratio: 9.85 Firing Order: 1-3-4-2 Idle RPM: 800 ± 100 Ignition Timing at idling speed: BTDC 7°± 5°/800 rpm(Limit: BTDC 10°± 5°/800 rpm) Cylinder
Hyundai_Beta_engine
Measure of an engine's capacity to do work
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Mean_effective_pressure
German general-purpose machine gun
problem in the roller/wedge system and make the MG 42 less ammunition ignition timing sensitive was needed. The roller-locking system inherent problem was
MG_42
Instruments used to control an aircraft engine
switches provide electrical power to all the systems in the aircraft. Ignition switch - Activates the magnetos by opening the grounding or 'p-lead' circuit;
Aircraft_engine_controls
Sensor in an internal combustion engine's electronic control system
combustion (see stoichiometry) and influence the advance or retard of ignition timing. A fuel-injected engine may alternatively use a mass airflow sensor
MAP_sensor
Type of drag racing motorsport
cylinder. These plugs are fired by two 44-ampere magnetos. Normal ignition timing is 58-65 degrees BTDC (This is dramatically greater spark advance than
Top_Fuel
Device that converts other energy to electrical energy
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Electric_generator
Mixture formation system
assist this process. Injection timing depends on piston speed; therefore, at higher piston speeds, injection and ignition timing must be advanced very precisely
Gasoline_direct_injection
Device used to start an internal combustion engine
to. Before Chrysler's 1949 innovation of the key-operated combination ignition-starter switch, the starter was often operated by the driver pressing a
Starter_(engine)
Volume swept by all of the pistons
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Engine_displacement
Formula One power unit manufacturer
by Honda. It was a derivative of the Honda RA621H, with different ignition timing, cylinder pressure, and MGU-H to account for the new E10 fuels. The
Red_Bull_Powertrains
Type of internal combustion engine
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Naturally_aspirated_engine
Part of early car ignition systems
coil, buzz coil or vibrator coil is a type of high-voltage ignition coil used in the ignition system of early automobiles, most notably the Benz Patent-Motorwagen
Trembler_coil
Medium to transfer power in hydraulic machinery
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Hydraulic_fluid
Device in internal combustion engines
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Hydraulic_tappet
Piston engine component which connects the piston to the crankshaft
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Connecting_rod
Type of aircraft rotary engine
distributor and high-voltage wiring found in conventional mechanically timed ignition systems. This ring gear also drove the oil pump, which supplied oil to
Gnome_Monosoupape
Air compressor for an internal combustion engine
temperatures can cause pre-ignition or knocking, which reduces performance and can cause engine damage. The risk of pre-ignition/knocking increases with
Supercharger
Event in gasoline vehicle engines
can overcome pre ignition by the means of a knock or detonation sensor. The sensor will detect pre ignition and retard the engines timing to protect the
Low-speed_pre-ignition
Combustion engine block tube in which a piston operates
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Cylinder_(engine)
Instrument measuring the rotation speed of a shaft or disk
(LT contact breaker) side of the ignition coil, while on others (and nearly all diesel engines, which have no ignition system) engine speed is determined
Tachometer
Device fitted in modern vehicles that have internal combustion engines
also shut off fuel or stop the spark ignition and some just reduce the engine's power by changing the spark timing. In the case of an automatic transmission
Rev_limiter
Series of engine control unit
calculate the overall air mass. Main system characteristics Fuel delivery, ignition timing, and dwell angle incorporated into the same control unit. Crank position
Motronic
Reprogramming a car to improve performance
by adjusting the ignition timing advance. Different timing may result in better performance. However, to cope with advanced timing, one must run high-octane
Chip_tuning
Mechanism for converting reciprocating motion to rotation
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Crankshaft
Piston engine starting system
is triggered either electrically or mechanically. When the aircraft's ignition is turned on and the cartridge is fired, high-velocity, high-pressure gas
Coffman_engine_starter
Angle of a blade in a fluid
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Blade_pitch
Aircraft cockpit with electronic displays
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Glass_cockpit
Control of engine power
requirement; in fact, the thrust of a solid-fuel rocket is not controllable after ignition, and is instead pre-planned by varying the shape of the void down the center
Throttle
Component of internal combustion engines which mixes air and fuel in a controlled ratio
a car powered by a petrol engine (which also debuted the first magneto ignition system). Karl Benz introduced his single-cylinder four-stroke powered Benz
Carburetor
Alternative vehicle power source
engine is primed by closing electric primer switch, then ignition of turbojet and ignition and electric starting motor of Riedel engine are turned on
Auxiliary_power_unit
Aspect of maintenance
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Time_between_overhauls
Diameter of a piston engine cylinder
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Bore_(engine)
Crankshaft section where connecting rods are attached
ratio Dead centre Engine displacement Four-stroke engine Horsepower Ignition timing Manifold pressure Mean effective pressure Naturally aspirated Monosoupape
Crankpin
Motorised passenger road vehicle
For example, all cars once had controls for the choke valve, clutch, ignition timing, and a crank instead of an electric starter. However, new controls
Car
Device on early internal-combustion engines
fresh fuel reaches the red-hot area of the tube, ignition occurs. On early designs, ignition timing was adjusted by adjusting the position of the red-hot
Hot-tube_ignitor
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