Features
Club Line is a product engineered for small engine displacements. This includes powersports, personal watercraft, and automobiles. These turbochargers feature internally wastegated turbine housings and journal bearing rotating groups. GBC stands for GARRETT BOOST | CLUB LINE. The first two numbers indicate the turbo frame size. The larger the number the larger the turbine wheel. The numbers following the dash indicate the peak potential flywheel horsepower rating. GBC20-300
- 39mm compressor inducer | 52mm compressor exducer
- Outline interchangeable with GBC 17 / 22
- 150 –300 horsepower capability
- Internal wastegate assembly with calibrated actuator
- Billet compressor wheel with extended tip design for higher pressure ratio capability
- GTX Gen II compressor aero with modern gasoline turbine wheel aero
- Journal bearing rotating group
- Engineered for small displacement engines including powersports, personal watercraft and automobiles
Read About Turbo System Optimization: A guide to setting up your turbocharger
The maximum power stated for each turbocharger has been calculated based strictly on choke flow of the compressor map (total turbo capability), which represents the potential flywheel power. Performance results of this product are highly dependent upon your vehicle’s modifications and tuning/calibration. Please consult with your local distributor before making a purchase.
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IMPORTANT PRODUCT INFORMATION
“Garrett Performance Kits are professional aftermarket products only designed for certain racing vehicles driven on particular racing tracks and shall only be used on racing vehicles that will never be driven on public roads or highways. Garrett Performance Kits are not legal for the use in vehicles on public roads or other roads to which public road law applies. Any vehicle modifications using Garrett Performance Kits are AT YOUR OWN RESPONSIBILITY and AT YOUR OWN RISK. Only use Garrett Performance Kits in compliance with all applicable laws, regulations, and ordinances (including but not limited to emission, noise, operating license, performance, safety, and type-approval aspects). A vehicle modification using Garrett Performance Kits may particularly affect or void a vehicle’s warranty, operating license or type-approval. Moreover, only use Garrett Performance Kits in compliance with all applicable racing and racing track provisions. It is YOUR OWN RESPONSIBILITY AND RISK to ensure that your Garrett Performance Kit fits your vehicle and area of application. YOU MUST ENSURE LAWFUL AND SAFE OPERATIONS AT ANY TIME. You should particularly consult the owner’s manual and service manual of your vehicle. You should also contact your vehicle’s manufacturer to determine what effects modifications may have on important aspects such as safety, warranty, performance, etc. Only install and use Garrett Performance Kits if you have fully read and understood this important safety information and if you fully agree with the terms and conditions set forth therein.”
GBC20-300 39mm
Reference Data
| GBC20-300 | Compressor | Turbine | |||||
|---|---|---|---|---|---|---|---|
| HP: 170-300 Disp: 0.8L-2.0L | Inducer | Exducer | A/R | Inducer | Exducer | Trim | A/R |
| Turbo PN: 896053-5003S | 39mm | 52mm | 0.59 | 47mm | 42mm | 84 | 0.55 |
GBC20-300 39mm
Compressor Map & Exhaust Flow Chart
Compressor Map
Exhaust Flow Chart
Garrett Boost | Club Line Features
- Frame sizes => 17, 20, and 22
- 17, 20 and 22 outline interchangeable
- 150 –350 horsepower capability
- Integrated wastegate assembly with calibrated actuator
- Billet compressor wheel with extended tip design for higher pressure ratio capability
- GTX Gen II compressor aero with modern gasoline turbine wheel aero
- Inconel turbine wheel material
- Ductile iron (SiMo+) turbine housing material
- Latest generation of journal bearing rotor group
- 360-degree thrust bearing
- Oil-cooled center housing
- Boost signal port with installed plug
- Designed to use existing 480009 actuators
GBC Competitor Product Summary
- Club Line compared to BorgWarner S1BG
- Billet compressor wheel with extended tip aerodynamic design
- 20% higher compressor flow
- Aero maps available for all frame sizes to assist in turbocharger selection
- Actuators with higher pressure settings available
- Micro size turbo (GBC14) to meet requirements of the smallest engines
- Club Line compared to TurboneticsTNX
- Billet compressor wheel with extended tip aerodynamic design
- Aero maps available to assist in turbocharger selection
- Three outline interchangeable frame sizes to enable different stage kits
Ancillary Part Numbers
Club Line Turbochargers are calibrated with a 0.5 bar actuator. Actuators with higher pressure settings (1.0, 1.5 bar) are available for individual purchase.
| Ancillary Part Numbers GBC 14 | 17 | 20 | 22 | |
|---|---|
| Description | |
| 480009-0009 | 0.5 bar (Included) |
| 480009-0006 | 1.0 bar |
| 480009-0010 | 1.5 bar |
| Gasket Numbers GBC 17 | 20 | 22 | |
|---|---|
| Description | |
| 447802-0001 | T25 Inlet Gasket |
| 770119-0001 | 5 Bolt Outlet Gasket |
| 409036-0001 | Oil Outlet Gasket |
| Consumer Sourced | Oil Inlet Gasket |
Compressor Aero
Forged, fully-machined compressor wheels with advanced aero is offered in 39mm inducer size and 52mm exducer. GBC20-300 can support from 170-300 horsepower. The compressor wheel is a 57 trim and the Compressor housing A/R is 0.59 A/R. This turbocharger can support up to 29 lbs/min of airflow and up to 3.7 pressure ratio.
Performance results of this product are highly dependent upon your vehicle’s modifications and tuning/calibration. The target power represented has been calculated based strictly on choke flow of the compressor map (total turbo capability), which represents the potential flywheel power.
Journal Bearing Rotating Group
The oil cooled center housing features the latest generation of journal bearing rotor group.
Internally Wastegated
Club Line turbochargers are fully assembled with an internally wastegated turbine housing. Garrett’s technicians calibrate the actuator for optimum performance, eliminating any need for adjustment. Club Line turbochargers are calibrated with a 0.5 bar actuator. Actuators with higher pressure settings (1.0, 1.5 bar) are available for individual purchase.
Turbine Housing
The GBC20-300 turbine housing inlet flange is standard T25 spec, and the outlet features a 5 bolt pattern. The 5 bolt outlet pattern is the same flange as the GT25 / GT28 turbos.
Compressor Housing Specs
The compressor housing outlet and inlet specs are the same at GT22 turbochargers.
