Table of Contents
The automotive world is filled with debates, especially when it comes to engine performance. One of the hottest topics is the comparison between LS and Coyote engines, particularly in high-performance builds. In this article, we will delve into the power comparison between these two engine types, focusing on dyno results for 650 horsepower builds using Garrett turbos.
Understanding the LS and Coyote Engines
The LS engine family, originating from General Motors, has become a favorite among performance enthusiasts due to its lightweight design and robust aftermarket support. On the other hand, the Ford Coyote engine, introduced in the 2011 Mustang GT, has gained a reputation for its high-revving capabilities and modern technology.
LS Engine Overview
The LS series engines are known for their aluminum blocks and heads, which contribute to their lower weight compared to traditional iron blocks. They feature a pushrod design that simplifies the engine layout and reduces complexity, making them easier to modify for high horsepower applications.
Coyote Engine Overview
The Coyote engine utilizes a DOHC design with variable valve timing, allowing for better airflow and efficiency at higher RPMs. This engine is also equipped with a more advanced fuel injection system, which helps in achieving better power delivery and throttle response.
650 HP Builds: Key Components
When building an engine to reach 650 horsepower, several key components play a critical role in the performance of both the LS and Coyote engines. Understanding these components can help in making informed decisions during the build process.
- Turbochargers
- Fuel System
- ECU Tuning
- Exhaust System
- Intercooler
Turbochargers: The Garrett Advantage
For both LS and Coyote builds, Garrett turbos are a popular choice due to their reliability and performance. These turbos are capable of supporting high horsepower levels while maintaining efficiency, which is crucial for achieving the desired power output.
Dyno Testing Results
To compare the performance of LS and Coyote engines at the 650 horsepower level, extensive dyno testing was conducted. The results provide valuable insights into how each engine performs under similar conditions.
LS Engine Dyno Results
The LS engine, equipped with a Garrett turbo, produced impressive numbers on the dyno. The engine reached peak horsepower at around 6,500 RPM, showcasing its ability to deliver power effectively across a wide RPM range.
Coyote Engine Dyno Results
In comparison, the Coyote engine also demonstrated strong performance, with peak horsepower occurring at a slightly higher RPM than the LS engine. This characteristic highlights the Coyote’s design for higher revs and its ability to sustain power in the upper RPM range.
Power Delivery and Torque Comparison
Power delivery and torque are crucial factors in determining the overall driving experience of a vehicle. Both engines exhibit unique characteristics in these areas, which can influence the choice of engine for specific applications.
Torque Characteristics of LS Engines
LS engines are known for their strong low-end torque, which provides excellent acceleration off the line. This trait is particularly beneficial for drag racing and street applications where quick throttle response is desired.
Torque Characteristics of Coyote Engines
The Coyote engine, while also delivering good torque, tends to shine at higher RPMs. This characteristic makes it a strong contender for applications that require sustained power at elevated speeds, such as road racing.
Cost Considerations for Building 650 HP Engines
When considering a build for either engine, cost is always a factor. The expenses associated with reaching 650 horsepower can vary significantly between the LS and Coyote platforms.
- LS Engine Build Costs
- Coyote Engine Build Costs
- Aftermarket Parts Availability
- Labor Costs
LS Engine Build Costs
Generally, LS engine builds can be more cost-effective due to the widespread availability of aftermarket parts. This accessibility allows builders to find competitive pricing on components, which can lower the overall build cost.
Coyote Engine Build Costs
Coyote builds may involve higher costs, especially when it comes to sourcing specific components that may not be as readily available as LS parts. This factor can contribute to increased expenses during the build process.
Conclusion
In the battle of LS vs Coyote engines, both have their strengths and weaknesses. The LS engine offers robust low-end torque and cost-effective build options, while the Coyote engine excels in high RPM performance and modern technology. Ultimately, the choice between these two engines will depend on the specific goals and preferences of the builder.
Whether you choose to go with the LS or the Coyote, both engines can achieve impressive results when built correctly. The key is to understand the differences and select the right components to reach your desired power level.