Turbo specialist services in Scunthorpe

Turbo rebuilds and reconditioning

A worn or damaged turbo is taken apart, cleaned and inspected, and the parts that wear are renewed. It can go back together to its original specification, or with uprated parts fitted while it is apart. A rebuild only lasts if the reason the turbo failed is put right too, so it helps to tell us what the car was doing before the turbo came off.

• Rebuilds to original specification
• Uprated thrust bearing and seals as options
• Diesel and petrol turbos
• Advice on what caused the failure

Hybrid turbos

A hybrid keeps your turbo’s original housings and mountings but is rebuilt with larger or stronger internals so it can flow more air. GP Turbos’ past listings include hybrids for Volkswagen group, BMW, Vauxhall, Porsche and Mercedes-Benz engines, many of them diesels. What a hybrid delivers depends on the supporting modifications and a matching calibration.

• Billet compressor wheels
• Compressor covers machined to match
• Trimmed turbine wheels
• 360° thrust bearings

Hybrid cores

A hybrid core is the centre housing rotating assembly (CHRA) built to hybrid specification: the bearing housing with its shaft, wheels, bearings and seals. It fits your turbo’s existing compressor and turbine housings, so a capable mechanic can build the upgraded turbo up on the original housings.

• Keeps your original housings
• Upgraded wheels, bearings and seals
• For assembly by a capable mechanic

Custom turbo builds

For drag, track and fast-road cars that need a turbo specified around the engine, the fuel, the way the car is used and the rest of the build, including matched pairs for twin-turbo engines. Grant Parker has drag raced his own turbocharged Mk1 Golf, which Engine Swap Depot reported in 2021 was running a GP Turbos billet turbocharger.

• Specified around your engine and its use
• Matched pairs for twin-turbo engines
• Billet compressor wheels with extended tips

Turbo problems explained

Boost loss, blue smoke, oil leaks and new noises often start somewhere other than the turbo. This page explains what each symptom usually points to, which checks come first, and when the turbo itself should come off for inspection and a rebuild.

• Boost loss and limp mode
• Blue smoke and oil leaks
• Whistles, whines and grinding

Information and guides

Longer guides to why turbos fail, oil leaks and blue smoke, turbo noises, losing boost, sticking vanes on variable-geometry turbos, and overspeed. They are written from the published guidance of turbo makers such as Garrett, BorgWarner, MAHLE and Holset.