Single Turbos vs. Twin Turbos: What is best for me? Turbo Kits & Parts

TL;DR

Choosing between single and twin turbo setups relies on your goals and budget. Key Points:

• Single turbo: Cheaper, simpler, better for highest power (1000+ HP), more turbo lag
• Twin turbo: Faster start, better street drivability, lower mid-range power, more expensive
• Engine type matters: V-engines suit twin turbos, straight engines prefer single turbos

Choosing the Best Turbo Setup

When you delve into the world of forced induction, you can significantly enhance your car’s performance, but tough choices lie ahead. Should you opt for a single turbocharger or invest in two? There are various configurations for turbochargers that can optimize performance based on the type of car. Understanding the differences between twin turbos vs single turbos can help you choose the option that best fits your needs and budget.

What is a Single Turbo?

Single turbo kits are the more popular setup for several reasons. The first reason is cost, and the second reason is space. A single turbo configuration utilizes a single, larger turbocharger to handle the exhaust from all cylinders of your engine. 

Key characteristics of single turbos:

• Single turbo setups are slower to spool but take up less room than a dual-turbo setup
• Single turbo kits are great for generating more horsepower as they have a wider power band than a twin-turbo setup and do not run out of steam on the top end.
• With a single turbo, you can increase the power to 1500 HP and more by getting larger setups.

What is a Twin Turbo?

In a twin-turbo engine, both turbos work together to maximize air compression and boost performance. This configuration offers some distinct advantages, especially for street-driven vehicles. 

Key characteristics of twin turbos:

• Twin turbos are an excellent choice for daily-driven or mostly street-driven cars.
• In a twin-turbo V8, each turbo is powered by the exhaust from just four cylinders. Because the turbos are smaller and need less exhaust energy to spool, they build boost much quicker than a single large turbo.
• Smaller turbos in a twin-turbo setup can work together to produce power levels similar to a larger single turbo, while also delivering quicker spool and reduced lag.
• Twin-turbo kits also have great underhood appeal if your car is more of a show car rather than a daily driver.

Also Read: Types of Turbo Kits: Advantages and Disadvantages

Key Differences Between Single and Twin Turbos

Let’s dive into the differences between a single turbo vs a twin turbo to help you make the right choice for your build.

Performance Characteristics 

Cost and Installation

The single turbo itself, as well as its placement, is more cost-efficient. Twin turbos require two units plus more complicated plumbing and installation.

Finding space under the hood for a single turbo and its supporting plumbing can already be a challenge, and fitting a second turbo makes packaging even more difficult.

In terms of expenses, two smaller turbochargers are more efficient than one bigger one in terms of replacement costs, but you have twice the components to possibly service.

Engine Compatibility

Some engines are better suited to twin-turbo kits for improved efficiency and performance. This is especially true for V-type engines, where each bank of cylinders can be paired with its own turbocharger for optimal results. For inline engines, single turbos are often the chosen choice due to simpler exhaust routing.

Which Turbo Setup is Best for You?

Choosing between a twin turbo vs single turbo depends on your goals, budget, and how you intend to use your vehicle.

Choose a single turbo if:

• You want to go with a cheaper kit
• Your main focus is on drag racing 
• There is a small amount of free space under your hood
• You’re aiming for very high horsepower numbers (1000+ HP)
• You have an inline engine setup
• You prefer easier installation and maintenance

Choose twin turbo if:

• Cost is not that big of a worry for you
• You are looking for great low to mid-range power
• You want a quicker spool
• You desire an eye-popping set-up under the hood
• You mainly use your car for daily driving or street use
• You have a V-type engine
• Responsive speed is more important than ultimate power

Also Read: What Does Twin Turbo Do – Benefits & Limitations

Conclusion

If you ever find yourself torn between twin turbo vs single turbo, it can be helpful to remember that the right choice depends entirely on your goals, budget, and engine setup. Twin turbos offer a versatile, well-rounded driving experience, while single turbos often stand out for maximum power potential and cost efficiency.

At Diesel Components Inc., we have been delivering quality turbo kits, parts, and expert diesel fuel injection services since 1977. 

Our specialists operate with keen industry knowledge and work with you to ensure you walk away with the best solution for your vehicle. With decades of experience, we are proud to be the trusted pick for diesel fuel injection service in Burnsville and the surrounding areas. Contact us today to enhance your performance with reliable parts, proven expertise, and customer care you can count on.

Address: 670 E Travelers Trail #105, Burnsville, MN 55337

Phone: (952) 890-2885

FAQs

Q1. Is a twin-turbo always better than a single-turbo? 

Ans. No, twin turbos aren’t generally better; it depends on your goals. Twin turbos excel at reducing lag and offering better street drivability, while single turbos are superior for maximum power potential and cost efficiency. 

Q2. Can I change from single to twin turbo? 

Ans. While technically possible, it needs major modifications, including new exhaust manifolds, piping, engine management tuning, and often custom fabrication work. 

Q3. How much does a turbo kit cost? 

Ans. Turbo kit prices vary widely based on quality and complexity. Basic single turbo kits start around $3,000 to $5,000, and twin turbo kits usually cost 50-100% more due to additional components. 

Q4. Do turbos lower engine lifespan? 

Ans. Properly installed and tuned turbos don’t generally reduce engine life, but they do increase stress on engine components. Many turbocharged engines last just as long as naturally aspirated ones when properly kept.

Q5. What additional mods are needed for a turbo upgrade? 

Ans. Essential supporting changes include upgraded fuel system (pump, injectors), engine management/tuning, intercooler, exhaust system, and often stronger engine internals (pistons, rods, head gasket).