Supercharger Types Explained | Pros & Cons of Roots, Twin-Screw & Centrifugal
Learn about different supercharger types—Roots, Twin-Screw, and Centrifugal. Compare pros and cons for horsepower, torque, efficiency, and daily driving to find the best fit for your car.
Supercharger Types: Pros and Cons for Performance Builds
If you’re looking to add instant horsepower and torque to your car, a supercharger is one of the most effective upgrades you can choose. By forcing more air into your engine, a supercharger allows for more fuel combustion, which equals more power. But not all superchargers are the same. In this guide, we’ll break down the three main types of superchargers—Roots, Twin-Screw, and Centrifugal—and discuss their pros and cons so you can choose the right one for your build.
1. Roots Superchargers
How They Work
A Roots supercharger uses two meshing lobes to push air into the intake manifold. Known for their iconic blower whine and old-school hot rod appeal, Roots blowers have been around since the early 1900s.
Pros
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Instant Boost – Delivers full boost almost immediately, perfect for low-end torque.
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Classic Styling – Often sits prominently on top of the engine, giving a muscle car look.
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Great for Street Driving – Strong low-RPM performance makes it ideal for daily driving and towing.
Cons
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Less Efficient at High RPM – Can produce more heat compared to other designs.
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Bulkier Size – May require hood modifications.
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Lower Top-End Power – Not as strong at high RPMs compared to centrifugal systems.
2. Twin-Screw Superchargers
How They Work
Similar in appearance to Roots blowers but more advanced, twin-screw superchargers compress air inside the housing rather than just pushing it in. This makes them more efficient and capable of producing cooler, denser air.
Pros
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Better Efficiency – Produces cooler air charge than Roots designs.
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Strong Low & Mid-Range Torque – Excellent for street cars and track days.
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Instant Throttle Response – Little to no lag when accelerating.
Cons
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Higher Cost – Typically more expensive than Roots setups.
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Still Larger in Size – May require clearance modifications.
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Heat Management Needed – Can still generate high intake temps under heavy load.
3. Centrifugal Superchargers
How They Work
A centrifugal supercharger looks like a belt-driven turbocharger. It uses an impeller to compress air and deliver it to the engine. Power delivery is more progressive, increasing with RPM.
Pros
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High Top-End Power – Excellent for drag racing and high-RPM performance.
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Compact Design – Easier to fit under stock hoods.
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Efficient – Generates less heat compared to Roots blowers at high RPM.
Cons
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Less Low-End Torque – Boost builds with RPM, so it’s not as instant.
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Turbo-Like Power Curve – Some drivers prefer the immediate punch of positive displacement blowers.
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May Require More Supporting Mods – To maximize gains, you might need upgraded fuel systems and tuning.
Which Supercharger Is Best for You?
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For street driving and instant torque → Roots or Twin-Screw
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For all-around performance with strong mid-range power → Twin-Screw
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For top-end racing and high horsepower builds → Centrifugal
Choosing the right supercharger depends on your driving style, budget, and performance goals. Roots and twin-screw designs offer instant grunt, making them fun for daily use, while centrifugal systems shine for high-RPM horsepower and racing scenarios.
Final Thoughts
No matter which type you choose, a supercharger is one of the most exciting modifications you can make. Pair it with proper tuning, fuel upgrades, and cooling solutions, and you can transform your car into a serious performance machine.