The GTX4718R is a purpose-built drag race turbocharger from Garrett’s GTX-R ball bearing lineup, engineered specifically for racers competing in classes that enforce an 86mm compressor wheel limit. Sold without a turbine housing, it gives serious competitors the flexibility to pair the compressor side with the turbine housing configuration their build demands. For teams already running a GT47 series setup, this unit drops in as a direct external match, simplifying upgrades without reworking the rest of the turbo system.
Specifications
- Compressor Wheel Inducer: 85.8mm (86mm)
- Compressor Wheel Exducer: 118mm
- Turbine Housing: Not included (w/o Turbine)
- Garrett P/N: 804878-5006S
- Alternate P/N: 804878-6
- Alternate P/N: 804878-5006
Performance & Application
Built to satisfy drag racing class rules that cap compressor wheel size at 86mm, the GTX4718R is designed for competitors who need maximum performance within a strict inducer limit. Its turbine side is engineered to mate with any GT47 series turbine housing, allowing racers to tailor turbine-side characteristics to their specific power and spool requirements. The compressor housing shares the same style as the GT47, making this turbo externally interchangeable with existing GT47 turbo setups. This makes it an ideal upgrade path for racers already running GT47 hardware who want to push compressor-side performance while staying within class regulations.
Compatibility & Fitment
- Turbine side mates to any GT47 series turbine housing
- Externally interchangeable with existing GT47 turbo setups
- Compressor housing style matches GT47
Frequently Asked Questions
- Does the GTX4718R come with a turbine housing?
- No, this turbo is sold without a turbine housing. The turbine side is designed to mate with any GT47 series turbine housing.
- What compressor wheel size does the GTX4718R use?
- It features a special 85.8mm (86mm) inducer and 118mm exducer, built specifically to meet class requirements limited to an 86mm compressor wheel.
- Can I use my existing GT47 turbine housing with this turbo?
- Yes, the turbine side of the GTX4718R will mate to any GT47 series turbine housing.
- Is the GTX4718R compatible with an existing GT47 setup?
- Yes, it uses the same compressor housing style as the GT47 and is externally interchangeable with an existing GT47 turbo setup.
For drag racers boxed in by an 86mm compressor wheel rule, the GTX4718R delivers a purpose-engineered solution that maximizes what the class allows while staying fully compatible with proven GT47 hardware.
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