The signal from the actuator is shown and can be downloaded. These parameters should be in somewhat a balance.
Yamaha Mt 07 2016 2017 Mt07 Mt 07 Fz 07 Throttle Body Assy
Throttle body measurement. An engines power can be increased or decreased by the restriction of inlet gases by the use of a throttle but usually decreased. D throttle bore diameter mm. A throttle is the mechanism by which fluid flow is managed by constriction or obstruction. To help determining whether the throttle valve control motor is functioning correctly different deviations from the example signal are mentioned along with possible causes. Specifically its designed to measure the temperature of the airfuel mixture that flows through the throttle body into the intake manifold and eventually to the combustion chamber. Since the introduction of the ls engine in 1997 there have been several variations of throttle bodies.
V cylinder displacement liters. D 8 to 9 x v x n5. N engine speed rpm. If the air flow is being measured by an air meter then the tb area vs throttle angle will set the airflow volume and speed thru the air meter. They have ranged from the original cable driven three bolt 78mm all the way up the 90mm electronically controlled four bolt found on the ls3. Another way to look at this is the throttle body is sized for max airflow and rpm of the engine displacement with some tolerence.
Place a measuring tape against the inlet hole in the throttle body and take a measurement of the inside of the throttle body inlet. The primary regulator for throttle pressure comes in the form of the throttle body temperature sensor which measures the temperature of the air fuel mixture entering the fuel injection system of your car. The throttle body is designed to control the fresh air of spark ignition engines in combination with an electronic throttle control system. D 7 to 9 x d. This results in a more gradual response that drivers who are not interested in performance would value because they equate it with smooth drivability. Most auto manufacturers measure airflow at peak rpms then choose a throttle body diameter to ensure that 50 throttle will produce exactly 50 airflow.
With a lab scope a throttle valve control motor signal voltage is measured with the key on and engine off. These formulas are based upon one throttle bore per cylinder. Etb applications with flex fuel cng and lpg are permissible if injec ted in the air flow after the throttle body. The throttle body temperature sensor sorry it doesnt have a cool acronym like the tps is also attached to the throttle body and collects data to permit an efficient burning of fuel. D main venturi diameter mm. Depending on your application a larger throttle body can provide some additional power.
This measurement is known as the inlet diameter and is a good measurement to have if you are fitting a cold air intake or supercharger to your current engine. This necessary regulation helps spark ignitions generate the most fuel efficiency. The term throttle has come to refer informally to any mechanism by which the power or speed of an engine is regulated such as a cars accelerator pedal. Weight kg 095 095 095 11 11. Write the measurement down on a piece of paper.
Gallery of Throttle Body Measurement
