135cc. There is no xxx/xx with stock injectors. That starts after you upgrade....ie 155/30, which is 155cc with 30% over nozzle.
Full Answer
What kind of fuel injectors do I need for a Chevy Silverado?
Swapping out the stock fuel injectors for a set of aftermarket ones will make the biggest difference in the performance and power of your Silverado. Bigger fuel injectors that can supply a larger volume of fuel to your engine will help your Silverado to produce more power easier.
How much fuel does it take to fill a fuel injector?
An injector this size can also provide an accurate amount of fuel at low rpm. To calculate your required flow rate, use this formula: For example, a naturally aspirated, 300 hp engine (BSFC 0.5), with 8 injectors will need 23.4 lbs./hr. of fuel per injector at an 80% (0.8) duty cycle.
Will upgrading fuel injectors make a difference?
However, upgrading your injectors will make the biggest difference and provide the largest increase in power. Below is a chart for all of the different flow rates of the stock Silverado engine fuel injectors.
What does flow rate mean on fuel injectors?
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.
How much power will stock 5.3 injectors handle?
At the low end of the 5.3 spectrum, the LM7's 25 lb fuel injectors are going to max out before they reach the 400 horsepower stage, typically around the 380 horse mark. Gen IV injectors, particularly those on flex fuel models, are at or just above the 30 lb mark, which will bring you closer to 400 horses.
What size are stock LS injectors?
LS Injector Identification GuideENGINEINJECTORSINJECTOR SIZELS2EV6 / USCAR34 lb/hr @ 58 psiL76EV6 / USCAR42 lb/hr @ 58 psiL77EV6 / USCAR42 lb/hr @ 58 psiLS3EV6 / USCAR42 lb/hr @ 58 psi32 more rows
What is my injector size?
Fuel Injectors are sized by their flow rate....Flow Rate Definition, Calculating Horsepower Range.Injector Flow RateNaturally Aspirated EngineEngine w/ Power Adder19 lbs./hr.225-290 hp185-240 hp24 lbs./hr.280-360 hp240-300 hp30 lbs./hr.350-450 hp300-375 hp36 lbs./hr.425-540 hp350-450 hp4 more rows•May 27, 2017
What size are stock ls1 fuel injectors?
They are rated about 28#.
How many pounds are stock LS3 injectors?
63 lb. LS3/LS7 Fuel Injectors, Set of 8.
What will bigger fuel injectors do?
The larger the diameter, the more fuel an injector can deliver. As fuel injector size increases, there are some unwanted side effects. As an injector's hole gets bigger, the minimum amount of fuel it can flow also gets larger.
What pound injectors do I need?
1:441:24:38INJECTOR MATH-HOW TO CHOOSE THE RIGHT SIZE - YouTubeYouTubeStart of suggested clipEnd of suggested clipBut basically a good idea a good estimation is that you need a half a pound of fuel per hour to makeMoreBut basically a good idea a good estimation is that you need a half a pound of fuel per hour to make one horsepower as we all know. And if you don't know you should that injectors are rated their flow
How much HP will 36 lb injectors support?
575 horsepowerRated injector flow: 36 lb/hr @ 43 PSI. Supports up to 575 horsepower.
How much HP will 120lb injectors support?
1900 horsepowerRated injector flow: 120 lb/hr @ 43 PSI. Supports up to 1900 horsepower.
How much HP can a stock LS1 fuel pump handle?
450 hpFuel System and Tuning Upgrading to larger injectors is needed for more. Fuel pumps: The factory pump becomes a limitation at 450 hp.
Who makes GM injectors?
ACDelcoFrom the manufacturer ACDelco is the true General Motors Original Equipment parts brand, infusing a century of experience, innovation and quality into more than 90,000 GM OE and other parts.
Are LS1 and LS6 injectors the same?
They are the same overall length as the stock LS1/LS6 injectors, and the injector connector is an LS2-style. However, all of the injectors do include a plug-and-play harness to adapt the fuel injectors to the factory LS1/6 (EV1) connector.
What injectors are used in 2005 LS3?
Perhaps a bit earlier, around 2005, GM switched the passenger car injector style to the Gen IV, short LS3 style that uses the EV6 or USCAR connector. This is the shortest injector of all the factory squirters, but its size should not be confused with a lack of flow potential as these injectors can crank out the fuel.
Why are Bosch injectors less popular?
These units are becoming less popular now mainly because they don’t deliver the high flow rates now demanded by today’s more powerful engines. These Bosch injectors used a connector that is referred to by no less than three different aliases.
What is the name of the Bosch fuel injection system?
The earliest reference is the Jetronic –the Bosch name for its early fuel injection system. This connector evolved into the Minitimer that now morphed to EV1. Right away, this becomes mystifying with three different ways to describe this electrical connector.
Does GM carry injectors on trucks?
Unfortunately, GM didn’t carry this injector over to the trucks, choosing instead to go with an entirely different injector.
Do truck injectors need an adapter?
Since most aftermarket EFI systems target the more modern EV6 injectors, using the early truck injectors will often require an electrical adapter. (Left) This is the original Bosch Jetronic injector with its EV1 connector that is also called the Minitimer.
Accel 150830 - ACCEL Fuel Injectors
Fuel Injectors, 30 lbs./hr., 14.4 Ohms Impedance, 12 V, Chevy, Ford, Lincoln, Mercury, Pontiac Set of 8
Accel 150821 - ACCEL Fuel Injectors
Fuel Injectors, 21 lbs./hr., 14.4 Ohms Impedance, 12 V, Chevy, Ford, Lincoln, Mercury, Oldsmobile, Set of 8
Uremco 6016 - UREMCO Remanufactured Fuel Injectors
Fuel Injector, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Daewoo, Each
ACDelco 19110538 - ACDelco Replacement Fuel Injectors
Fuel Injector, Replacement, Buick, Cadillac, Chevy, GMC, Isuzu, Oldsmobile, Each
Standard Motor Products FJ164 - Standard Motor Fuel Injectors
Fuel Injector, Replacement, O-Rings Included, Buick, Cadillac, Chevy, Pontiac, Passenger Car, 5.7L, Each
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SS Crew
Will bigger fuel injectors do anything on a realively stock 6.0 engine with only a tune and exhaust mods?
What are the parts of a stock Silverado?
What Are The Stock Silverado Fuel Delivery Parts? The Silverado is supplied fuel by the following parts: The fuel pump pushes the gas from the fuel tank through the lines. That gas that gets fed into the fuel rails and then dispersed into the injectors.
How does a Silverado engine work?
If you strip everything away and look at your Silverado’s engine in the most simple of terms, it is powered by mixing fuel and air. While parts like cold air intakes and exhaust systems help your engine breathe easier, without adding more fuel to the equation you will be limited on increasing the power and torque.
What is fuel line on Silverado?
The fuel lines on your Silverado are the carrier for the fuel as they transport it from the tank to the rails and injectors. The fuel lines are a part that is not typically modified or upgraded. They are viewed as more of a maintenance item and are replaced when there is an issue with the stock ones.
How many miles does a Silverado have?
However, if your Silverado has high mileage on it (over 150,000 miles) then you may need to replace it. Should that be the case, then going with one that is capable of pumping more fuel is never a bad option.
What happens when you increase the amount of fuel in your engine?
When you increase the amount of fuel and air in your engine, you are increasing the tiny explosions in the cylinders. These tiny explosions, in turn, generate heat, which increases the engine bay temperature and can lead to higher cylinder head temperatures.
Is the fuel pump on a Silverado reliable?
The fuel pump is like the heart of the fuel system as it pumps the fuel to where it needs to go. You would want to upgrade the fuel pump either when the stock one breaks or if your Silverado is modified to have a large amount of horsepower (talking when you hit 600 HP). The stock fuel pump on Silverados is fairly reliable ...
Does a bigger fuel injector help a Silverado?
Bigger fuel injectors that can supply a larger volume of fuel to your engine will help your Silverado to produce more power easier. You will need some aftermarket tuning to help things run smoothly, however, it will be a noticeable upgrade that will throw you back in your seat.
