The GTX2860R Rally Potato is Garrett’s purpose-built ball bearing turbocharger for competition rally applications where inlet restriction rules demand maximum efficiency from a compromised airflow package. Built for drivers who need instant response and durability under sustained high-boost conditions, this GTX-series core delivers the aerodynamic advantage that separates podium finishers from the rest of the field. It’s the choice for teams who refuse to sacrifice performance to restrictor regulations.
Specifications
- Compressor Wheel: Forged, fully-machined 11-blade billet compressor wheel
- Compressor Wheel Trim: 49-trim
- Compressor Wheel Design: Next generation aerodynamics
- Inlet Restrictor: 34mm, designed for rally applications
- Bearing System: Dual ceramic ball bearing, oil & water-cooled CHRA
- Compressor Housing: Ported shroud, increases surge resistance
- Outline Interchangeability: Interchangeable with the ball bearing GT2860RS
- Turbine Housing A/R (available separately): 0.64 A/R
- Turbine Housing Material (available separately): High-nickel “Ni-Resist” cast material for high temperature durability
- Garrett P/N: 816364-5002S
- Alternate P/N: 816364-2
Performance & Application
The GTX2860R Rally Potato is engineered specifically for rally applications governed by inlet restrictor rules, extracting the maximum possible performance from a 34mm-restricted airflow path. Its ported shroud compressor housing extends the surge margin, allowing the turbo to remain stable and responsive across the demanding, transient-heavy load cycles typical of rally stages. The dual ceramic ball bearing CHRA is oil and water-cooled, supporting the quick spool and rapid response needed for tight rally sections. This unit is designed for competitors who need a turbocharger that performs at its peak within a fixed restrictor formula.
Compatibility & Fitment
- Outline interchangeable with the ball bearing GT2860RS, supporting swaps within existing GT2860RS installations
Frequently Asked Questions
- Is the GTX2860R Rally Potato a ball bearing or journal bearing turbo?
- It uses a dual ceramic ball bearing, oil & water-cooled CHRA.
- What is the compressor inlet restrictor size on this turbo?
- It is designed with a 34mm inlet restrictor for rally applications.
- Does this turbocharger include the turbine housing?
- No — the turbine housing, actuator, and bracket are sold separately. The available 0.64 A/R turbine housing is cast from high-nickel “Ni-Resist” material for high temperature durability.
- Can the GTX2860R Rally Potato replace a GT2860RS?
- Yes, its outline is interchangeable with the ball bearing GT2860RS.
For rally programs bound by restrictor regulations, the GTX2860R Rally Potato delivers the aerodynamic edge and ball bearing durability needed to compete at the front of the pack.
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