Aftermarket Engine Boosting Methods

Unleash the Power of an Stock Engine by Turbocharging And Supercharging

Blog
11. Sep 2023
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Aftermarket Engine Boosting Methods

People tends to modify the Original factory fitted stock engines  For increased performance. Usually this done by forced induction systems which is incorporated aftermarket to the engines.
By Joshua Santiago

What is forced induction System

A forced induction system in a car is a mechanism that increases engine power by pushing a significant amount of air into the combustion cylinders, surpassing the limitations of atmospheric pressure. Turbochargers and Superchargers are type of forced induction system, achieve this by compressing incoming air, allowing for more fuel and air to be burned in the cylinders, resulting in nearly a 50% boost in power.
Aftermarket Turbocharging, Supercharging, and Dual Turbo + Supercharging are methods to enhance an engine's performance. Here's a descriptive comparison of how they work and their advantages and disadvantages:

1. Aftermarket Turbocharging  :


How it Works

An aftermarket turbocharger is added to the engine. It uses exhaust gases to spin a turbine that compresses incoming air, increasing the air-fuel mixture's density and power output.

Advantages

  •  Significant power increase without compramizing fual efficiency
  •  Improved fuel efficiency at cruising speeds.
  • Using wasting energy through exhaust system to enhance power.

Disadvantages

• Potential for lag in power delivery.
• Requires careful tuning to prevent engine damage.
• Increased stress on engine components can reduce longevity.

2. Aftermarket Supercharging  :


How it works

A supercharger is a mechanical compressor that forces more air into the engine. It's typically belt-driven and provides instant power by compressing air directly into the intake manifold.

 Advantages

• Immediate power boost with minimal lag.
• Smoother power delivery across the RPM range.
• Suitable for smaller engines due to reduced lag.

 Disadvantages

• Greater parasitic drag on the engine, reducing fuel efficiency.
• More complex installation compared to turbocharging.

3. Aftermarket Dual Turbo + Supercharging  :

 How it works

This setup combines both a supercharger and two turbochargers. The supercharger provides immediate low-end power, while the twin turbos handle higher RPM power delivery.

Advantages

• Broad powerband with minimal lag and excellent top-end power.
• Improved efficiency compared to a single large supercharger.

 Disadvantages:

• Complex and expensive to install.
• Requires precise tuning and maintenance.
• Potential for increased heat and stress on the engine.

Comparison  :

Power Delivery:

Supercharging offers immediate power, while turbocharging may have some lag. Dual Turbo + Supercharging combines the advantages of both for a broad powerband.

Efficiency:

Turbocharging can improve efficiency at cruising speeds, while supercharging tends to reduce fuel efficiency.

 Complexity:

Dual Turbo + Supercharging is the most complex and costly to install.

Maintenance:

All three systems require precise tuning and maintenance to prevent engine damage.

Cost:

Supercharging is typically the most affordable aftermarket option, followed by turbocharging, and then dual turbo + supercharging.

Application:

The choice depends on the engine's size, desired power characteristics, and budget.
Ultimately, the choice between these methods depends on the specific goals and requirements of the vehicle and driver. Each has its strengths and weaknesses, and the best choice will vary from one situation to another.