
The stock fuel injectors for the 1990s-era Chevy LT1 engine were 24 pounds per hour (lbs/hr). However, there is some discrepancy in the sources, with some stating that the stock injectors were 22 lbs/hr. To increase the performance of your LT1-equipped Chevy Camaro, you can upgrade to high-performance fuel injectors with an output of 42 pounds per 440cc. It is important to note that simply installing larger injectors may not increase power.
| Characteristics | Values |
|---|---|
| Stock Injector Weight | 22lbs, 24lbs |
| Fuel Injector Options | 28lb, 30lb, 36lb, 42lb |
| Camaro LT1 Fuel Injector Output | 42 pounds per 440cc |
| Camaro LT1 Fuel Injector Model | 1998-2002 5.7L Camaro; 16-24 Camaro LT1, SS |
| Fuel Injector Height | 1.480 inch, 2.550 inch |
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What You'll Learn
- Stock 1990s Chevy LT1 engine fuel injectors were 24 lbs/hr
- LT1 fuel injectors for 1998-2002 5.7L Camaro are 42 lbs/440cc
- LT1 injectors are 22 lbs, but some sources state 24 lbs
- A Ford 24 lb injector will flow 26.4 lbs at higher fuel pressure
- LT1 fuel injectors are compatible with some Ford motorsport injectors

Stock 1990s Chevy LT1 engine fuel injectors were 24 lbs/hr
The stock fuel injectors for the 1990s Chevy LT1 engine were 24 pounds per hour (lbs/hr). This number can be used to estimate the power of the engine. To do this, we can multiply the 24 lbs/hr injectors by 8 injectors, giving us a total fuel delivery of 192 lbs/hr. We can then divide the 192 lbs/hr by a brake-specific fuel consumption number (BSFC) of 0.45 to determine the horsepower potential. This calculation shows that there is plenty of fuel delivery potential with the current stock injectors.
It is important to note that simply installing larger injectors on an EFI engine will not necessarily increase power. The manufacturer likely equipped the engine with appropriately sized injectors, so adding larger injectors may not improve performance. To increase power, other modifications such as a higher airflow intake system or a cat-back exhaust system can be considered. These modifications can help increase airflow and reduce exhaust backpressure, respectively.
For the 1992-1993 Chevy LT1 engine, smaller 22 lbs injectors were used. However, with the change to sequential injection in 1994 and later models, the injectors were upgraded to 24 lbs. This information can be useful when considering upgrades or replacements for the fuel injectors in the 1990s Chevy LT1 engine.
There are various aftermarket fuel injectors available for the LT1 engine, such as the Camaro High Impedance Fuel Injectors. These injectors have an output of 42 pounds per 440cc and are designed to fit 1998-2002 5.7L Camaro and 16-24 Camaro LT1 models. When considering upgrades or replacements, it is important to consult with experts or reliable sources to ensure compatibility and optimal performance.
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LT1 fuel injectors for 1998-2002 5.7L Camaro are 42 lbs/440cc
If you own a 5.7L Camaro dating from 1998-2002, then you'll need 42 lbs/440cc fuel injectors for your LT1 engine. These fuel injectors are high-performance, high-impedance injectors, which will ensure your Corvette runs smoothly and efficiently. They are designed from Bosch Gen 3 core blueprints and feature a custom HPI tip. This means they are E85 compatible, which ensures versatile use, making them a reliable choice for ethanol and methanol fuels.
These injectors come in a set of eight pieces and are a direct replacement for your Camaro LT1. They are made in Germany, showcasing high-quality craftsmanship. It's important to note that mechanical expertise or professional installation is required for these injectors.
It's worth noting that there are other options available for your Camaro, depending on the year of manufacture. For example, there are 42 lbs/hr fuel injectors available for 1994-1997 5.7L Camaro models. There are also fuel injectors available for 2010-2015 Camaro models, although the specific lbs/hr or lbs/cc is not listed.
It's always important to consult a professional or a mechanic when dealing with fuel injectors and engine components to ensure the correct parts are installed and that they are installed correctly.
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LT1 injectors are 22 lbs, but some sources state 24 lbs
There is some discrepancy regarding the weight of LT1 injectors, with some sources stating they are 22 lbs, and others claiming they are 24 lbs. It seems that the variation may be due to the manufacturing year of the car, as one source mentions that the 92-93 LT1 used 22 lb injectors, while the 94-up LT1 used 24 lb injectors.
The confusion could also be due to the way injector weight is measured and calculated. Some sources refer to the programmed value in the ECM (Electronic Control Module), which is stated as 24.87, while others refer to the injector weight at a specific fuel pressure. For example, a Ford 24 lb injector will flow 26.4 lbs at a higher fuel pressure.
Additionally, it's important to note that the weight of the injectors alone does not determine their suitability for a particular engine. Other factors, such as the engine's horsepower, fuel flow, and air-fuel ratio, also come into play when determining the appropriate injector size.
Some sources recommend consulting a dealer or a specialist to get accurate information about injector weight and compatibility. It is always advisable to seek expert advice before making any modifications to your vehicle's fuel injection system.
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A Ford 24 lb injector will flow 26.4 lbs at higher fuel pressure
Fuel injectors are an essential component of an internal combustion engine. The stock fuel injectors for the 1990s-era Chevy LT1 engine were 24 pounds per hour (lbs./hr.). This number can be used to estimate the power of the engine.
Upgrading to larger fuel injectors on an EFI engine does not always result in more power. If the manufacturer has equipped the engine with sufficient-size injectors, adding larger injectors may not improve performance. However, for a Chevy LT1 engine, there are a variety of options to increase performance, including upgrading to Ford 24-pound fuel injectors.
A Ford 24-pound injector will flow 26.4 pounds at higher fuel pressure. This is because the flow rate increases with the square root of the pressure increase. For example, the fuel system of a '99 Camaro SS is set at 62 psi, which is higher than the standard 36-38 psi of most Ford applications.
It is important to note that increasing the pressure of the rails can negatively affect the injectors. As the pressure increases, the electronic injectors will need more force to lift their internal plunger to spray the fuel mist, which can lead to premature failures. Therefore, it is recommended to consult with experts or professionals before making any modifications to your fuel injectors or engine.
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LT1 fuel injectors are compatible with some Ford motorsport injectors
The LT1 engine has been used in several Chevrolet vehicles, including the Corvette and Camaro. The stock fuel injectors for the LT1 engine are rated at 22 or 24 lbs.
There is some variation in the reported weight of the stock fuel injectors, with some sources stating 22 lbs and others 24 lbs. This may be due to differences in specific LT1 engine models or manufacturing variations.
When upgrading fuel injectors for better performance, it is important to consider the engine's fuel flow and the brake specific fuel consumption (BSFC) number. The stock injectors for the 1990s-era Chevy LT1 engine were 24 pounds per hour (lbs./hr.). This number can be used to estimate the potential power of the engine.
It is worth noting that simply installing larger injectors on an EFI engine will not necessarily result in more power. However, some Ford motorsport injectors are compatible with the LT1 engine and can be used as replacements or upgrades.
For example, Ford 24-pound injectors are compatible with the LT1 engine and can provide increased fuel flow, resulting in improved performance. Additionally, Ford SVO 30-pound injectors have been mentioned as compatible with the LT1 engine.
When considering Ford motorsport injectors for the LT1 engine, it is important to ensure proper fitment and compatibility with the specific LT1 engine model and year. It may be necessary to make modifications or adjustments to the injectors or the engine to ensure proper functionality and performance.
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Frequently asked questions
The stock fuel injector size for the LT1 engine varies depending on the model year. The 1992-1993 models have 22 lbs injectors, while the 1994-1997 models have 24 lbs injectors.
It depends on your goals. If you are seeking to increase performance, simply installing larger injectors may not be the solution. However, if your engine is the LT1 350 V8, there are several options for modifications that can increase airflow and power without requiring larger injectors.
There are high-impedance fuel injectors available for the LT1 engine with an output of 42 pounds per 440cc. These injectors are designed for 1998-2002 5.7L Camaro and 16-24 Camaro LT1, SS models.
The stock fuel injector size for the LT4 engine is believed to be 28 lbs, which is larger than the LT1.
Yes, some users have reported issues with buying third-party fuel injectors for the LT1 engine. For example, some injectors from Amazon leaked and had issues with ohm readings. It is recommended to buy high-quality injectors from reputable sources to avoid such problems.











































