Turbocharger Services

Looking for a turbo? We offer a wide range of turbos, including new and reconditioned (recon) options. Get your vehicle running like new with our high-quality turbochargers and components from top OEM manufacturers. Trust us for reliable performance and expert service.

New Turbochargers

We supply brand-new, genuine turbochargers to clients across South Africa. Our turbos are sourced from trusted manufacturers to ensure top performance and long-lasting reliability for your vehicle.

Reconditioned Turbos

We sell reconditioned turbos built to 100% OE standards, suitable for a wide range of motor vehicles. Our recon turbos offer excellent performance and affordability without compromising quality.

Turbo Diagnostics

We diagnose and repair turbocharger issues, including power loss, turbo lag, exhaust smoking, and unusual noises. Our expert technicians identify problems quickly and restore your turbo’s performance.

Every turbo from Autonic Turbo Diesel is 100% OE compliant. We stock brand-new and rebuilt turbos for various motor vehicles, including diesel heavy commercial and passenger vehicles. Our range includes:

VGT – Variable Geometry Turbocharger (Cummins/Holset
VNT – Variable Nozzle Turbine (Honeywell/Garrett)
VTG – Variable Turbine Geometry (BorgWarner/ABB)
VG – Variable Geometry Turbocharger (MHI)
VGS – Variable Geometry System Turbocharger (IHI)
VTA – Variable Turbine Area (MAN Diesel & Turbo)

Trust us for top-quality turbochargers built to OEM standards

Turbo Pretoria

Looking for a turbo in Pretoria? We offer a wide selection of turbos for sale, including recon turbos and new turbochargers. As Pretoria’s leading supplier of turbochargers and turbo kits, we pride ourselves on providing quality products and excellent customer service. #PretoriaTurbochargers

Recon Turbo

As recon turbo specialists with over 10 years of experience, we help you get the most from your turbocharged engine. Whether you want better performance or need to maintain your turbo system, we provide expert guidance and support to keep your engine running at its best.

Turbocharger for sale

We offer a wide range of turbochargers and component kits from leading OEM manufacturers. Our selection of high-quality automotive turbos ensures we have the perfect option for your needs. Contact us to learn more about our products and services.

Supercharger vs Turbocharger

Both turbochargers and superchargers increase engine power by compressing air to burn more fuel. However, turbochargers use exhaust gases for power, while superchargers run off a belt connected to the engine. Each has unique benefits depending on your performance needs.

Automotive Turbo Repair

Need your turbocharger repaired, serviced, upgraded, or replaced? We offer competitive pricing on all turbo services. Contact us today for top-quality turbo repair solutions!

When repairing your turbo, many clients also choose to upgrade their turbochargers, as it’s the perfect time while the turbo is already removed. Upgrades can be done on your existing turbo at an additional cost.

As market leaders in hybrid turbo technology, we ensure that not only will we restore your failed turbocharger, but we’ll also enhance its performance. Trust us for all your turbo repair and upgrade needs!

Most Common Turbocharger Quality Check List

Compressor Wheel

√   Blades free of bends or fractures
√   Rubbing or foreign object induced damage on blade profile
√   Bore area tolerance and finish
√   Nose cone and backface square
√   Back face, balance or wear defects

Post Turbocharger Assemble

√   Radial and Axial clearance
√   Freedom of rotation
√   Housing alignment
√   Wastegate setting
√   Gasket and studs
√   Sundry items

Turbine Turbo Housing

√   Slip joint or flange mating surfaces
√   Heat shield & centre housing mating surfaces
√   Scroul and contour crack free
√   Free of heat erosion and scale
√   Threads, studs and clamping surfaces
√   Convolute free of foreign objects

Turbine Turbo Shaft Wheel

√   Wheel blades for fractures or blade defection
√   Heat erosion on blade tips
√   Shaft journal surfaces
√   Bearing to journal tolerance
√   Piston ring seal area and flinger groove
√   Piston ring to groove tolerance
√   Shaft run-out
√   Shaft wheel balance
√   The square of shaft-step-down and threads

Loose Turbo Components

√   All thrust faces free of wear
√   Square of all surfaces
√   Piston ring groove and flinger groove
√   Piston ring to groove tolerance
√   Bore to shaft tolerance

Compressor Cover

√   Compressor inlet, outlet flanges
√   Bearing housing, backplate mating surface
√   Contour free of gouges
√   Compress wheel to housing contour tolerance
√   Noise baffle secure and free of debris
√   Annual slot free of debris

Upgrading Your Turbocharger

They are many ways you can upgrade your turbocharger for better performance, give us a call today for more information or check possible updates below.

Turbine Wheel Cutback

Turbine Wheel Cutback is a machining process which enables the turbocharger to increase power output by reducing back pressure. This process does remove some blade material from the turbine wheel which normally results in a slight reduction in turbocharger response. If you're unsure of how back pressure influences a turbocharger imagine running a marathon with a finger up your nose!

Porting and polishing the Turbine Housing

Porting and polishing the Turbine Housing helps provide maximum gas flow, thus improving efficiency. It is usually carried out on the turbine housing inlet. Flanges can be gasket-matched if required to optimize flow.

Fitment of a Larger Turbine

Fitment of Larger Compressor Wheel, allows the turbocharger to flow more air. It does this in two ways. - Firstly, the larger turbine wheel can drive the compressor wheel harder resulting in more airflow (more airflow equals more power potential). Secondly, the larger wheel reduces backpressure in much the same way as a Cutback.

Uprated Actuator Turbocharger Fitting

Fitting an Uprated Actuator allows higher boost pressure to be run. The actuator governs when the wastegate opens. A stronger/uprated actuator means the turbocharger will run higher boost, usually equaling more power, before the wastegate opens.

360 degree Thrust Bearing Turbo Fitting

Fitting a 360 degree Thrust Bearing increases the reliability of your turbocharger and allows a safer way of running high boost pressures. The thrust bearing is under heavy pressure when the turbocharger is operating, the larger surface area of a 360 thrust bearing. As opposed to a traditional 270 degree unit, is better equipped to cope with these axial loads.

Restrictors

Restrictors are used in motorsport to "cap" the airflow and therefore, the power a car can produce. At Autonic Turbo Diesel we can machine your turbo to accept a restrictor. Similarly, we also offer restrictors in all the standard sizes so we can supply as well as fit, if required.

Modifying the Compressor Backplates

Modifying the Compressor Backplate allows the fitment of a Larger Compressor Wheel an essential part of the hybrid process.

Twin Seal conversions

Twin Seal conversions pre-date Staggered Gap Piston Rings and are used on older turbochargers where staggered-gap rings are not available. The process involves careful machining of the piston Ringland on the shaft. And the seal bore area of the bearing housing to allow a second piston ring seal to be fitted. This reduces oil weep age on cars with low back pressure exhaust systems or higher than usual crankcase pressure.

Ported Automated Turbo shrouds

Ported shrouds help prevent surge by equalizing air flow on the secondary blades of the compressor wheel. Allowing the turbocharger to cope with higher boost levels at low engine RPM and light throttle loads. A ported shroud conversion will also improve the overall efficiency of the compressor wheel. The existing compressor cover can (potentially) be machined for a ported shroud or a replacement cover with a ported shroud can be supplied.

3 Common Turbo Failure Modes

If you think your vehicle might have a turbo-related problem, do check our contact us for a complete turbo-diagnostic check before you replace it.

1. Foreign Object Impact (FOI)

The turbine and compressor wheel assembly of a turbocharger can rotate at speeds of up to 240,000 RPM, which is 4,000 rotations per second. At these high speeds, even small particles carry a lot of inertia (stored energy) that can cause significant damage.

When dense particles, even non-metallic deposits like carbon, make contact with the internal parts of the turbocharger, it can lead to immediate and complete failure. This type of damage is known as Foreign Object Impact (FOI) failure. It’s crucial to protect your turbo from such contaminants to ensure optimal performance and longevity.

2. Oil Starvation

Most modern turbochargers use a ‘plain’ bearing system to control the main shaft’s movement, relying on a high-pressure oil film to support the shaft. This means there is no direct contact between the shaft and the housing, allowing the shaft to “float” while spinning at incredibly high speeds.

However, despite the oil film, the rapid rotation required to generate airflow (over 240,000 RPM, or 4,000 rotations per second) leads to a significant build-up of heat. If the oil supply is inadequate or cut off (oil starvation), it can cause severe damage to the turbo’s bearings and internal components, resulting in turbo failure. Proper lubrication is crucial to prevent this issue.

3.Oil Contamination

Maintaining the correct quantity of oil for your turbocharger is crucial for engine performance and longevity. However, ensuring the oil’s quality is just as important.

Turbocharger bearing systems are precisely engineered, with tolerances measured to within one micrometer—about 100 times smaller than the width of a human hair.

To achieve the high shaft speeds and pressures required by modern fuel-efficient engines, the lubricating oil must be completely clean and free from contamination. Common contaminants include:

Dilution from water, coolant, or fuel
Metallic particles created through engine wear
Poor maintenance of the oil and lubrication system over time

Contaminated oil can cause significant damage to your turbo, leading to failure. Regular oil changes and proper maintenance are essential to prevent these issues.

Visit Our Workshop To Get Your Turbo Diagnosed
Today!

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New & Recon Turbos

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