What Size Injectors for 800HP LS

For 800hp ls engine, injectors size of 95-105lb/hr will suffice. The engine-computer controls fuel delivery, and with more horsepower, it requires more fuel.

Upgrading fuel injectors is often necessary to meet the demands of the new power level. Ls engines have different sizes, and selecting injectors for 800 horsepower depends on various factors. Fuel pressure is the primary consideration and, in this case, select 95-105lb/hr fuel injectors with a high flow rate.

This article will discuss other factors to consider when choosing a fuel injector size for your engine. We’ll explain the role of fuel injectors in engine performance, fuel injection types, and how to choose the best injector size for your ls engine.

Maximizing Your Engine's Potential: Choosing the Right Size Injectors for 800HP LS

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Choosing The Right Injector Size

When it comes to powering your ls engine to 800 horsepower, choosing the right injector size is crucial. Determining the correct flow rate is the first step in selecting the optimal injector size. You’ll want to identify the appropriate injector type as well, based on your engine’s compression ratio and intended use.

With these factors considered, you can then determine the appropriate injector size for 800 horsepower and make sure your ls engine is running at its best. It’s important to pay attention to these details to ensure that your engine is getting the right amount of fuel at the right time.


Upgrading Your Fuel System

Upgrading your fuel system for 800hp ls requires careful consideration of injector size, fuel pump and fuel line. A high-performance fuel pump is important for providing the necessary fuel flow for your high-powered engine. Fuel line size and type should also be taken into account to allow for proper fuel delivery.

The right size injector is crucial to achieving optimal performance and avoiding engine damage. A properly designed fuel system can prevent costly engine repairs and ensure peak performance. When upgrading your fuel system, it’s important to seek advice from a professional to ensure the best results.

Installing And Tuning Your Injectors

When it comes to installing and tuning injectors for your ls engine, there are a few things to keep in mind. First and foremost, proper installation techniques are crucial for optimal performance. Ensure a tight seal and proper torque, and be sure to utilize high-quality o-rings.

Additionally, tuning your engine for maximum performance can be a complex process, particularly with larger injectors. It’s important to work with a qualified tuner who can adjust air/fuel ratios, timing, and other critical factors to ensure your engine runs smoothly and efficiently.

With the right injector size and tuning, your ls engine can achieve impressive horsepower while remaining reliable and streetable.

Frequently Asked Questions For What Size Injectors For 800Hp Ls

What Is The Best Injector Size For An 800Hp Ls?

Choosing the right size injector depends on several factors such as fuel type, engine displacement, and power output. However, injectors with a flow rate of 1000cc/min or higher would be a good choice for achieving 800hp.

How Do I Choose The Correct Flow Rate?

Calculating the correct flow rate requires knowing your engine’s brake specific fuel consumption (bsfc), engine displacement, and desired horsepower. An injector specialist or tuning professional can help calculate these numbers and determine the appropriate flow rate for your build.

What Happens If My Injectors Are Too Small?

Using injectors that are too small can lead to engine damage, as they won’t be able to provide the necessary amount of fuel, causing a lean condition. This can result in detonation and other serious problems, ultimately leading to engine failure.


With all the information provided in this blog post, we can conclude that choosing the right size injectors for an 800hp ls engine is critical for optimal performance. The injector size can affect the engine’s power, fuel efficiency, and overall reliability.

It is essential to consider factors such as fuel type, fuel pressure, engine size, and the intended use of the vehicle when selecting the injector size. While a larger injector may deliver more fuel, it is not always the best choice for achieving maximum performance and fuel efficiency.

Calculating the proper injector size for your engine can be a daunting task, but with the right resources and knowledge, it is achievable. With all the options available on the market, it is crucial to do your research and consult with experts to ensure the best results.

Properly sizing your injectors will help unleash the full potential of your ls engine and make your driving experience more enjoyable.