Add 100+ HP with a Turbo Kit for Your Classic Chevrolet Corvair

Upgrading Your Corvair with a Turbo Kit

The Chevrolet Corvair, produced from 1960-1969, was an innovative American compact car. With its revolutionary rear-mounted air-cooled engine, the Corvair stood out from other Detroit compacts of its era. While never a big seller, the Corvair earned a cult following among enthusiasts who appreciated its unique engineering and European flair.

One way Corvair owners often upgrade their cars is by adding a turbocharger. Turbo kits give the Corvair's flat-six engine a fun power boost while retaining its character. In this article, we'll look at turbo kit options for the Corvair and what's involved in installing one.

Benefits of Adding a Turbo

Turbochargers work by using exhaust gases to spin a turbine that forces extra air into the engine. This denser air allows more fuel to be burned, increasing horsepower and torque output. Benefits of adding a turbo to your Corvair include:

• Higher peak horsepower - Turbo kits can boost output by 50 hp or more.
• More torque for better acceleration.
• Enhanced drivability and responsiveness.
• No loss of mileage if driven moderately.
• Retains the Corvair's air-cooled character.

Turbo Kit Options

There are a few main manufacturers of Corvair turbo kits to choose from:

• JEGS - A traditional turbo kit with all parts included. Good for mild street setups.
• Corvair Underground - Offers turbo systems for street or track use. More customizable options.
• HPK - Specializes in big horsepower turbo Corvair engines. Better for racing applications.

Kits generally include a turbocharger, wastegate, intake and exhaust plumbing, gaskets, air and oil lines, and necessary sensors. Intercoolers are recommended for added power and reliability.

Installation Overview

Installing a turbo kit takes some mechanical skill and special tools. Key steps usually include:

1. Removing the stock exhaust manifold and carburetor.
2. Installing the turbocharger, wastegate, oil and coolant lines.
3. Fabricating a custom exhaust downpipe and intake piping.
4. Installing the intercooler (if equipped).
5. Hooking up oil and coolant lines.
6. Installing the blow-off valve and intake system.
7. Connecting all sensors, vacuum lines, and wiring.
8. Refilling fluids and testing engine operation.

Proper tuning is critical after installing a turbo system. This ensures optimal performance and engine longevity.

Supporting Modifications

When upgrading to a turbo, other engine modifications are often needed for reliability:

• Lower compression pistons - Required unless running very low boost.
• Upgraded connecting rods - Stock rods may bend under high boost situations.
• Improved engine cooling system - Additional coolant capacity handles the heat of boost.
• High-flow fuel pump and injectors - Feeds more fuel for big power gains.
• Tuned exhaust system - Optimal for spooling the turbo and releasing backpressure.

With the right supporting mods and professional tuning, a turbocharged Corvair can produce 400 horsepower or more reliably.

Conclusion

Adding a turbocharger kit is an exciting upgrade for any Corvair owner seeking more power. With a properly-installed system, a turbo Corvair delivers an exhilarating driving experience while retaining the unique character of its air-cooled flat-six engine. Just be sure to budget for required supporting modifications and professional tuning.

FAQs

What is the main benefit of adding a turbo kit to a Corvair?

The main benefit is a significant increase in engine power and torque output. Turbo kits can safely boost a stock Corvair engine's horsepower from 95-110 up to 150-180 hp depending on boost levels.

What kind of performance gains can I expect with a turbo Corvair?

You can expect much improved acceleration and torque for stronger pulling power. Turbo Corvairs can hit 0-60 mph over a second faster and have a higher top speed compared to a stock model.

Do I need to upgrade other engine parts when adding a turbo?

Yes, it's highly recommended to upgrade components like the connecting rods, pistons, engine cooling system, and fuel delivery for reliability under boost. Stock parts may fail under race conditions.

What are some key steps in installing a Corvair turbo kit?

Key installation steps include removing the stock exhaust/intake, mounting the turbo and wastegate, fabricating custom exhaust/intake piping, installing intercooler and blow-off valve, and properly connecting all hoses, lines, wiring.

How much does a complete Corvair turbo kit cost?

Turbo kit prices range from about $2,000 for a basic kit up to $4,000+ for a high-performance setup. Additional mods can add a few thousand more to the total cost.