How do you size a fuel injector?
Fuel Injectors are sized by their flow rate. Flow rate is a measurement of how much fuel can be delivered over time. It is listed in pounds per hour (lbs./hr.) or cubic centimeters per minute (cc/min.). The right size injector can supply enough fuel under full load conditions at an 80% duty cycle.
What is the flow rate on my fuel injectors?
Most injectors are flow rated at 43.5 psi. (Motorcraft rates their injectors at 39.15 psi.) If you are running a different pressure, your actual flow rate will be different than the advertised rate. For example, what happens to the output of a 24 lbs./hr.
How do you calculate fuel flow in an engine?
Expressed as a formula it looks like this:
- Given Horsepower x .50 lb fuel/hp = lbs of fuel for given horsepower.
- 200 lbs/hr / 6.25 lbs/gal = 32 gph.
- BSFC . 50 / 6.25 = . 0800 gallons / horsepower / hour.
- OR.
- BSFC .70 / 6.59 = .106 gallons / horsepower / hour.
- 800 * .106 = 84.80 gph.
How do you check Denso fuel injectors?
Identification of Denso Fuel Injectors Casting Numbers are always located on the sides of the fuel injector body. Depending upon the years manufactured Denso fuel injectors will have a configuration of numbers like this.
What is fuel injector calculator?
FuelTech makes the selection easier for all enthusiasts with its Fuel Injector Calculator. It is capable of recommending fuel injector sizing for naturally aspirated and turbo combinations that are run on gasoline, alcohol, or ethanol.
How does the fuel injector size selector work?
It is capable of recommending fuel injector sizing for naturally aspirated and turbo combinations that are run on gasoline, alcohol, or ethanol. The selector allows the user to pick the number of fuel injectors, input estimated horsepower, and the type of induction.
What is the maximum injector duty cycle recommended?
Maximum injector duty cycle (IDC) (In order to be conservative, Fuel Injector Clinic recommends a maximum duty cycle of 90%.) Have you tried out our new Injector Calculator? Click here or the image below and check out FIC’s new Injector Calculator.