How do you calculate injector flow rate?

How do you calculate injector flow rate?

New Flow Rate:

1. The formula to find the new FUEL FLOW rate after a fuel pressure change:
2. Example 1: A 240 CC injector tested at 43.5 PSI is run at 50 PSI.
3. So, the resultant change in pressure would yield the following: 240 cc/Min X 1.0721 = 257 cc/Min. 22.86 Lb/Hr X 1.0721 = 24.51 Lb/Hr. 36.58 Hp X 1.0721 = 39.22 Hp.

What determines how much fuel passes through the injector into the engine?

The amount of fuel supplied to the engine is determined by the amount of time the fuel injector stays open. This is called the pulse width, and it is controlled by the ECU. The injectors are mounted in the intake manifold so that they spray fuel directly at the intake valves.

What does flow matched injectors mean?

Flow matched means each one flows nearly the same amount, so you dont have one injector that flows 10% less when it is open for 2 milliseconds than the others flow when theyre open for 2 milliseconds. The cylinder with that injector would be running leaner than the others.

How do you adjust the flow rate of a fuel injector?

Hold the throttle steady at 3,000 rpm and adjust the “injector size” setting higher or lower until you reach the same air/fuel ratio that you wrote down in step 3 above. Adjust the injector size lower to richen/increase fuel. Adjust the injector size higher to lean/decrease fuel.

Can you adjust a fuel injector?

NEVER adjust fuel pressure higher than the limit of any part in your fuel system. Adjusting fuel system pressure is only intended to make small changes to the injector flow rate. If you’ve made significant upgrades, you probably need bigger injectors.

What is fuel injector off time?

The offtime (aka dead time) values are used in calulating net fuel flow. If you command 1.5ms of fuel and it takes 1ms for the injector to respond before actual fuel is flowing then the net fuel flow is .

What is minimum injector opening time?

Minimum Injector Opening Time has nothing to do with getting the engine to start…it’s a value that describes the smallest pulse width that an injector can use.

What is injector latency?

Basically dead times (or latency) is the amount of time it takes the injectors to fully open after they get the signal from the ecu.

What is injector open time?

Ms2 manual stated, “Injector Opening Time (ms) (InjOpen) is the amount of time required for the injector to go from a fully closed state to a fully opened state when a 13.2 volt signal is applied.

Are fuel injectors timed?

It is important to understand that a fuel injector have a lag time, a dead time before it opens. The blue injector has a dead time of 0.8 mS but once it opens it acts linear almost immediately. The nonlinear part is usually attended behind the opening time the engine has at idle and can therefore be ignored.

What is the fuel injector?

The fuel injector injects/sprays fuel into the intake manifold at a very precise angle. Within the intake manifold, air and fuel mix. The air-fuel mixture is compressed in the combustion chamber, igniting the chemical reaction required to power your engine.

What code will a bad fuel injector give?

The most common fault codes associated with a clogged fuel injector are P0171 and P0174, which indicates the engine controller is seeing a lean condition. It is also possible to see fault codes for a rich condition if the injector is leaking or not atomizing correctly.

Is it OK to drive a misfiring car?

An engine misfire can be caused by bad spark plugs or imbalanced air/fuel mixture. Driving with a misfire isn’t safe and can damage your engine.