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Turbocharger

Bwd Turbochargers

Intermotor is fully committed to the turbo market. Scroll down to learn more about the turbocharger market and Intermotor's coverage and engineering. 

The Growing Turbo Market

Current CAFE standards have pushed auto makers to increase fuel economy on new vehicles. With the rapid introduction of new smaller displacement turbocharged engines, consumers get V8 power while maintaining V6 fuel economy. Here are some industry predictions for turbochargers by 2020:

Turbocharger infographics

Percentage of new vehicles
     with turbochargers

Number of vehicles with
        turbo engines

Percentage of turbo market
     for 4-cylinder engines


The Upward Trend in Turbocharger Coverage



A Growing Market

Vehicle manufacturers are adding turbochargers at a double-digit rate. Over the next 5 years, the turbo market is expected to grow to more than 8 million turbocharged vehicles.

Why Turbo?

While Diesel passenger cars are the main consumers of turbochargers, gasoline-powered vehicles utilize them as well. Why turbo? Simple. Downsized engines are needed to meet new fuel and emissions standards. Turbochargers improve power and economy up to 40%.

Full-Line Coverage

Intermotor’s extensive research has helped determine the numbers you need to compete in this market. Intermotor® currently provides coverage for Audi/VW and Saab, and will be expanding applications for Volvo, Subaru, Mazda, BMW, Mercedes, Mini, Fiat, and Porsche.


100% New Turbochargers

Intermotor's line of 100% new turbos means you can install with complete confidence. Each direct-fit replacement part ensures ease of installation, and we have both gasoline and diesel applications. 

Rotating journal and thrust bearings 100% tested to meet OE performance

Turbo vacuum-operated actuator diaphragm constructed with high-grade rubber material to resist heat fatigue

Includes complete gasket kit for ease of installation


Signs of a Damaged Turbo

failed turbocharger

If you hear whistling noises coming from the turbo, it’s likely due to an air/gas leakage caused by pre-turbine exhaust gas or air/boost leaks. Your first course of action should be checking all of the joints. If the noise continues, check the clearances and wheels for housing contact.

If the turbo rotor assembly has seized up or is difficult to rotate, the problem is likely tied to the degradation of the lubricating oil. When the oil degrades, it can lead to carbon buildup in the bearing housing interior. The carbon buildup will ultimately restrict rotation. Two other issues that can cause the rotor to seize up include insufficient or intermittent drop-in oil pressure and dirt in the lubricating oil. Another important detail to keep in mind is that a turbo has specific axial and radial rotor clearances. Sometimes, the clearances can be misdiagnosed as worn bearings. In reality, clearances that are out of specification may be associated with a lubricating oil issue. Check for insufficient oil, dirt ingress, and oil contamination with coolant.

To determine if the turbo has been damaged by foreign material, inspect the turbine wheel or impeller. You will clearly see any foreign material that has entered through the turbine or compressor housings. If the blades are damaged, the turbo is already destroyed. Look for metal that has come off the turbo in the intake tubes. Metal particles in this area may indicate a damaged engine.

To learn more about turbo diagnosis, read our Turbocharger Diagnosis Tips article. 


Turbocharger Boost Solenoid

The turbocharger boost solenoid (a.k.a. wastegate solenoid) monitors the amount of boost generated in a turbocharged motor. Faulty turbo solenoids won’t properly monitor the amount of boost generated in a turbocharged motor, which will decrease the life of the turbo and motor. Our Turbo Boost Solenoid is a direct replacement that regulates the amount of boost being generated from stock or upgraded units.

Direct-fit OE replacement for ease of installation

Designed to restore proper wastegate function to maximize turbocharger boost pressure and engine performance

Includes mounting bracket for easy, direct-fit installation


Turbo Bypass Valve

The turbo bypass valve recirculates vented air back to the compressor inlet. Over time, OE turbocharger bypass valves can start to leak. To prevent future leaks, our Turbo Bypass Valve features an upgraded “710P” valve with a 14.4lb spring. The stronger spring helps the turbo spool up faster and maintain consistent boost pressure throughout the power band.

Direct-replacement part restores proper turbocharger boost pressure

Upgraded “710P” valve with 14.4lb spring helps the turbo spool up faster and maintain consistent boost pressure throughout power band

High-quality polymer housing helps prevent cracking


Turbo Boost Sensor

The Turbo Boost Sensor measures turbo manifold pressure to the ECM, and is used to calculate air density and the required fuel delivery for optimum combustion. If it fails, the system may not add fuel under boost and can result in loss of power and possible engine damage.