Is it Possible to Install Two Turbos Without Upgrading the Engine?

The installation of multiple turbochargers in a car can significantly enhance its performance. However, the belief that additional turbos inherently necessitate an engine upgrade is a myth that requires debunking. This article explores the feasibility of installing two turbos without upgrading the engine, discussing the methods, potential drawbacks, and success stories.

Understanding Turbocharging Technology

Turbochargers increase the power output of an engine by compressing air, which is then injected into the combustion chamber. While single turbos are commonly used, some enthusiasts opt for twin-turbo setups to achieve even more horsepower. Here, we examine the challenges and possibilities of such installations.

Two Ways to Install Two Turbos: A Deep Dive

There are two primary methods to install two turbos on a car without upgrading the engine:

V-Engine Intake Manifold Split: This method is typically used on V-engines, where the intake manifold is split, feeding half the cylinders from each turbo. This approach ensures balanced performance across all cylinders. Inline Small Large Turbo Setup: Another method involves utilizing a smaller turbo inline with a larger one. This setup is versatile and can be adapted to different engine configurations.

Both methods have their merits but also present unique challenges that must be considered.

Engine Durability and Performance

While it is possible to install two turbos without upgrading the engine, the resulting performance will be limited by the engine’s inherent strength and durability. Low boost levels are often the norm in such setups due to the engine's inability to withstand higher pressures and temperatures. Despite this, the engine's durability means it can still produce significant power without risking major engine failure.

There are numerous examples and videos on YouTube showcasing successful installations of twin turbos in stock engines, often for racing or drifting purposes. These installations demonstrate that it is possible to achieve impressive performance gains without the need for a full engine upgrade.

Success Stories and Real-World Applications

Many car enthusiasts and DIY mechanics have successfully installed two turbos into their stock engines. For instance, some have utilized turbines sourced from junkyards, which are then adapted for use in budget racing or drifting setups. This not only achieves excellent performance but also keeps expenses to a minimum.

While the power generated may not match that of an engine that has been fully upgraded, the setup offers a practical and cost-effective solution for those with budget constraints or less technical resources.

Considerations and Limitations

It's important to note that installing two turbos without upgrading the engine comes with certain limitations. The engine may experience increased wear and tear, and the power output will be lower than what could be achieved with a fully upgraded engine. Additionally, the handling and reliability of the vehicle may be compromised.

Furthermore, there is a financial consideration. While the initial installation costs can be lower, the long-term maintenance and potential failures may offset the savings.

Conclusion

While installing two turbos in a stock engine without upgrading the engine is possible, it does come with several limitations and considerations. For those with a budget or limited technical resources, this setup can still produce significant power gains. However, for optimal performance and longevity, a full engine upgrade is often the best approach.

In conclusion, the decision to install two turbos without upgrading the engine should be carefully weighed against the potential benefits and drawbacks. Success stories and real-world applications show that it is possible, but thorough planning and preparation are essential for a successful outcome.