Ls vs Hemi Comparison: Turbocharged Builds Reaching 800+ Hp with Precision and Garrett Turbos

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The world of high-performance engines has long been dominated by two heavyweights: the LS and the HEMI. Both engines have their loyal followers and unique characteristics, but when it comes to turbocharged builds, the competition heats up. In this article, we will explore the intricacies of LS vs HEMI comparisons, particularly focusing on turbocharged builds that reach over 800 horsepower with the help of Precision and Garrett turbos.

Understanding the LS Engine

The LS engine family, introduced by General Motors in the late 1990s, has become a staple in performance circles. Known for its lightweight design and robust performance potential, the LS engine is a favorite among tuners and builders alike.

  • Lightweight Construction: The LS engine features an aluminum block, contributing to a lower overall weight.
  • Aftermarket Support: There is a vast aftermarket for LS engines, providing numerous options for upgrades and modifications.
  • Versatility: LS engines can be found in a variety of vehicles, making them accessible for many enthusiasts.

Exploring the HEMI Engine

The HEMI engine, synonymous with Chrysler, has a rich history dating back to the 1950s. Its distinctive hemispherical combustion chamber design allows for efficient airflow and higher compression ratios, making it a formidable contender in the performance arena.

  • Powerful Performance: HEMI engines are known for their high torque output, making them ideal for street and strip applications.
  • Iconic Design: The unique HEMI design not only provides performance benefits but also a recognizable aesthetic.
  • Strong Community: The HEMI community is passionate, with a wealth of resources available for builders and enthusiasts.

Turbocharging the LS and HEMI Engines

Turbocharging has revolutionized the performance landscape, allowing both LS and HEMI engines to reach unprecedented power levels. By forcing more air into the engine, turbochargers can significantly increase horsepower and torque.

Precision Turbochargers

Precision Turbo and Engine is renowned for its high-quality turbochargers that cater to both LS and HEMI builds. Their products are designed to provide maximum efficiency and power, making them a top choice for serious builders.

  • Wide Range of Options: Precision offers various turbo sizes and configurations to suit different builds and performance goals.
  • High Efficiency: Their turbos are designed for minimal lag and maximum power output, essential for achieving over 800 hp.
  • Proven Track Record: Many successful builds utilize Precision turbos, showcasing their reliability and performance capabilities.

Garrett Turbochargers

Garrett is another major player in the turbocharger market, known for producing durable and efficient turbos suitable for both LS and HEMI applications. Their engineering innovations have made them a favorite among performance enthusiasts.

  • Advanced Technology: Garrett turbos incorporate cutting-edge technology to enhance performance and reliability.
  • Custom Solutions: They offer various turbo options tailored to specific performance needs, ensuring the right fit for any build.
  • Strong Support Network: Garrett provides extensive support and resources for builders, making it easier to achieve high horsepower goals.

Comparing Performance: LS vs HEMI Turbo Builds

When it comes to turbocharged builds reaching 800+ hp, both LS and HEMI engines have their strengths and weaknesses. Understanding these differences can help builders make informed decisions based on their goals.

Power Output

Both LS and HEMI engines can achieve impressive power outputs with the right turbo setup. However, there are nuances in how they deliver that power.

  • LS Engines: Typically produce higher peak horsepower due to their efficient airflow and tuning capabilities.
  • HEMI Engines: Known for their strong low-end torque, making them feel powerful off the line.

Weight Considerations

The weight of the engine can significantly impact vehicle performance, especially in racing scenarios. The LS engine’s aluminum construction gives it an edge in this category.

  • LS Engines: Lighter weight allows for better weight distribution and handling.
  • HEMI Engines: Heavier due to the iron block, which can affect overall vehicle dynamics.

Aftermarket Support

Both LS and HEMI engines enjoy strong aftermarket support, but the LS engine has a more extensive range of parts and modifications available.

  • LS Engines: A vast array of performance parts, from turbo kits to ECU tuning options.
  • HEMI Engines: Growing support, but still not as extensive as the LS market.

Building for 800+ HP: Key Considerations

When aiming for 800+ hp builds, there are several key considerations to ensure reliability and performance. Both LS and HEMI builders must pay attention to these factors.

Engine Internals

Upgrading engine internals is crucial for handling increased power levels. This includes pistons, rods, and crankshafts that can withstand higher stress levels.

  • LS Upgrades: Forged internals are common to handle high boost levels.
  • HEMI Upgrades: Similar upgrades are necessary, focusing on strength and durability.

Fuel System

A robust fuel system is essential for supporting high horsepower builds. Upgraded fuel pumps, injectors, and lines are necessary to ensure proper fuel delivery.

  • LS Fuel Systems: Many opt for larger injectors and high-flow fuel pumps.
  • HEMI Fuel Systems: Upgraded components are also crucial to meet fuel demands.

Tuning

Proper tuning is vital to maximize the potential of turbocharged builds. Both LS and HEMI engines require custom tuning to optimize performance and reliability.

  • LS Tuning: Many tuners specialize in LS engines, providing tailored solutions for turbo setups.
  • HEMI Tuning: While less common, there are tuners experienced in HEMI performance.

Conclusion: Choosing Your Path

In the battle of LS vs HEMI turbocharged builds, both engines offer unique advantages and challenges. Ultimately, the choice comes down to personal preference, intended use, and available resources. With the right parts and tuning, both LS and HEMI engines can achieve the coveted 800+ hp mark, making them formidable options for any performance enthusiast.