OEM Injectors Sizes 1994-97 7.3L use 98cc AA code single shots 1997 California and early 1999 models use 120cc AB code split shots Late 1999-2003 use 140cc AD code injectors
Full Answer
How many CC's in a stock stock injector?
The 7.3 Powerstroke stock injector is just that, for stock truck performance. They are limited by the total fuel output. OBS injectors are rated at approximately 90cc of flow and they are single shot by design.
What do the numbers on the injectors mean?
Most times, injectors are referred to in "160/30" or "250/100" format. First Number = "160" or "250" is stating the injectors CC size. aka. 160cc of fuel is available as a maximum quantity over 1,000 injection events. Second Number = "30" or "100" refers to the injectors in Percentage (%) OVER the stock size.
What is the difference between stock injectors and supderduty injectors?
The 7.3 Powerstroke stock injector is just that, for stock truck performance. They are limited by the total fuel output. OBS injectors are rated at approximately 90cc of flow and they are single shot by design. The supderduty injectors are limited to a effective flow rate of approximately 120cc of flow in a split shot design.
What size injectors do I need for Stage 1?
Stage 1 & Stage 1.5 Injectors (160/0 - 180/30) will be fine to drop in on any year 7.3 Powerstroke but in a race tune with high pulse width, will likely not sustain ICP. 200-205cc Hybrid injectors generally do not require an HPOP upgrade.
What size is a stock 7.3 injector?
Let's start with the stock injectors. The 7.3 Powerstroke stock injector is just that, for stock truck performance. They are limited by the total fuel output. OBS injectors are rated at approximately 90cc of flow and they are single shot by design.
How do I know what size injector to get?
So to figure out what size fuel injector will result in an 85% duty cycle, divide the original result by 0.85: 18.75 lb/hr/0.85 = 22 . 1 lb/hr requirement. Since the next popular injector size available is 24 lb/hr, this is the correct size injector that you should choose for this particular application.
Is the number 8 injector different on a 7.3 Powerstroke?
The injectors in the 7.3L diesel run off of the high-pressure engine oil pump. The number 8 injector is the farthest away from the oil pump, causing a filling problem, which may result in a misfire. Ford replaced the number 8 injector in some vehicles as needed with a different injector to solve the problem.
Are 7.3 and 6.0 injectors the same?
The primary difference between 7.3L and 6.0L injectors is the valve that allows high-pressure oil to enter them. On a 7.3L, it's a poppet valve (as shown in the diagram above). On a 6.0L, it's called a spool valve.
How much HP will 30 lb injectors support?
350-450 hpFlow Rate Definition, Calculating Horsepower RangeInjector Flow RateNaturally Aspirated EngineEngine w/ Power Adder30 lbs./hr.350-450 hp300-375 hp36 lbs./hr.425-540 hp350-450 hp42 lbs./hr.500-625 hp410-525 hp46 lbs./hr.540-690 hp450-575 hp4 more rows•May 27, 2017
Can you run too big injectors?
It's easy to fall into the trap of thinking that bigger fuel injectors equal more power, but unless your engine is set up to deal with the extra fuel, you'll be on a fast track to trouble. The excess fuel will flood the engine and it either won't run at all, or will be running too rich.
How do you check injectors on a 7.3 Powerstroke?
0:092:34How to check your 7.3 powerstroke injectors - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou'll notice a big difference in idle on it then all you do is just replug it back in right here.MoreYou'll notice a big difference in idle on it then all you do is just replug it back in right here. And then you just go to the next one and then you just go down right here.
How does a 7.3 L injector work?
0:5215:367.3 Powerstroke Injectors Explained - YouTubeYouTubeStart of suggested clipEnd of suggested clipIn your high pressure oil rails will range from about 500 to 3,000 psi well a seven to one ratioMoreIn your high pressure oil rails will range from about 500 to 3,000 psi well a seven to one ratio increase in pressure means that that fuel is also injected. At a range between 3500. And 21,000 psi.
What is a 7.3 Powerstroke?
The 7.3L Powerstroke is one of the most reliable Diesel engines ever produced. It's so reliable even die-hard Cummins and Duramax enthusiasts acknowledge it's widespread success. This makes them one of the most sought after diesels today.
What does heui stand for?
Hydraulic Electronic Unit InjectorsHydraulic Electronic Unit Injectors (HEUI): This computer-controlled system consists of a combined pump and injector for each engine cylinder. It uses high amounts of pressure to fire precise strokes of fuel to the engine. You'll mostly find HEUI systems in older Ford Powerstroke injectors.
How many cc is a stock 6.0 injector?
They flow 40cc's of fuel over stock. These injectors are a great all around set. They are capable of 500 RWHP. With these injectors you will have to run custom tuning to get them to idle properly and to maximize the potential of the injectors.
How does heui injection work?
0:341:41Hydraulic Electronic Unit Injection (HEUI) - YouTubeYouTubeStart of suggested clipEnd of suggested clipIt uses high-pressure engine oil and an engine management system in order to do this. The engineMoreIt uses high-pressure engine oil and an engine management system in order to do this. The engine lubrication oil is pressurized from six mega Pascal's to around thirty mega Pascal's.
What is 160/30 in injector?
So, the example of "160/30" = 160cc Injector with a 30% over the stock nozzle.
What does 160/30 mean?
What Do the Numbers Mean? Most times, injectors are referred to in "160/30" or "250/100" format. First Number = "160" or "250" is stating the injectors CC size. aka. 160cc of fuel is available as a maximum quantity over 1,000 injection events.
What is the formula for fuel?
The Formula: Fuel = Power. Turbo = Drivability. Tuning = The bond that ties it all together. What I mean by that, Fuel: You can not make power without fuel. No matter the goal, choosing the injectors/Injection Pump that gets you to the power level you want is the first step before anything else. Turbo: Fuel without air is not power.
Do 238 cc injectors need HPOP?
238-250cc Hybrid injectors do generally require an upgraded HPOP for max potential. However, this not needed in most tow tunes daily tunes and street tunes. My recommendation is to click on the links below and read the descriptions of the injectors you are interested in.
How does a 7.3L power stroke injector work?
The 7.3L Power Stroke uses a HEUI-style injector, which stands for Hydraulically Actuated Electronic Controlled Unit Injection. Diesel fuel is supplied to the injectors through fuel rails inside the cylinder heads. A high-pressure oil pump, which is gear driven by the engine, is also used to supply high pressure oil through the heads to the injectors. When the computer sees that a cylinder needs to fire, a signal is sent to the Injector Driver Module (IDM). The IDM will send a pulse-width signal to the solenoid on the injector. When the solenoid is actuated, a poppet valve inside the injector opens, allowing the high pressure oil to flow inside the injector where it presses against an intensifier piston. This forces the intensifier piston down, which pressurizes the diesel fuel found inside the injector. When the fuel pressure inside the injector reaches a certain pressure the injector pintle will lift off its seat and allow fuel to be injected into the cylinder through the injector nozzle.
What happens when fuel pressure inside injector reaches certain pressure?
When the fuel pressure inside the injector reaches a certain pressure the injector pintle will lift off its seat and allow fuel to be injected into the cylinder through the injector nozzle.
