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G-Series G55-2450 98MM

Horsepower: 1000 - 2450

Displacement: 3.0L - 12.0L

Features

• Supports up to 2450 horsepower
• 98mm compressor inducer | 133mm compressor exducer
• 112mm turbine inducer | 106mm turbine exducer
• 15% more turbine flow (compared to GTX) see graph below
• One-piece aluminum center housing
• 16mm ceramic dual ball bearing cartridge
• Outline interchangeable with GTX Gen II turbos
• Stainless Steel turbine kit sold individually.
• T6 Inlet: 1.00 A/R, 1.12 A/R, 1.24 A/R, 1.40 A/R
• V-Band Inlet: 1.24 A/R, 1.40 A/R

  • G55-2450 (98mm Compressor Inducer) 880547-5005S

WARNING: Maximum allowable turbocharger speed is 84krpm. The use of this product above max turbocharger speed is at the owner’s risk, and can result in damage and premature failure. To protect the turbocharger from overspeed when operating, a speed sensor can be installed into the compressor housing to monitor shaft speed. Sensors sold separately. (click here for details)

Performance results of this product are highly dependent upon your vehicle’s modifications and tuning/calibration. The horsepower numbers represented above are calculated based strictly on choke flow of the compressor map (total turbo capability), which represents the potential flywheel horsepower.

 

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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.”

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G-Series G55-2450 98mm

Reference Data

G SERIES G55 Compressor Turbine
HP: 1000-2450 Disp: 3.0L-12.0L Inducer Exducer A/R Inducer Exducer Trim
Supercore PN
G55-2450 880547-5005S 98mm 133mm 0.96 112mm 106mm 90
Turbine Kits: G55 PN A/R Inlet Outlet Wastegate Divided
Free Float Turbine Housing 761208-0069 1.24 V-Band V-Band Free Float N
761208-0070 1.40 V-Band V-Band Free Float N
761208-0071 1.00 T6 V-Band Free Float N
761208-0072 1.12 T6 V-Band Free Float N
761208-0073 1.24 T6 V-Band Free Float N
761208-0074 1.40 T6 V-Band Free Float N

G-Series G55-2450 98mm

Download Section

 

File Name View
Compressor Map 85MM Inducer View
Compressor Map 88MM Inducer View
Compressor Map 91MM Inducer View
Compressor Map 94MM Inducer View
Compressor Map 98MM Inducer View
Compressor Map 102MM Inducer View
Compressor Map 106MM Inducer View

 

 

File Name View
Configuration Guide View
File Name Link View
Compressor Map Download View
Exhaust Flow Chart Download View
Product Photo Download View
Flange Diagram Download View
Speed Sensor Kit Installation Instruction Download View

G-Series G55-2450 98mm

Compressor Map & Exhaust Flow Chart

Compressor Map

Exhaust Flow Chart

G Series: A Turn Ahead Of The Competition

G Series G55 turbochargers feature the latest innovations in turbocharger technology. Advanced compressor and turbine aero offer a range of high horsepower performance boosting solutions for 3.0L – 12.0L engine platforms. 85mm, 88mm, 91mm, 94mm, 98mm, 102mm, 106mm compressor inducer sizes produce up to 2900 horsepower for today’s top drag race teams.

Turbine Stage:

The newly engineered turbine wheel with optimized G Series aerodynamics increases flow up to 15% (Compared to GTX Gen II, see graph below). The large 90 trim turbine stage measures 112mm at the inducer and 106mm at the exducer. G55 is offered with stainless steel turbine housings in:
V-Band Inlet: 1.24 A/R, 1.40 A/R
T6 Inlet: 1.00 A/R, 1.12 A/R, and 1.24 A/R, 1.40 A/R

Part Numbers

  • 1.24 A/R: 761208-0069 (V-band inlet & Outlet)
  • 1.40 A/R: 761208-0070 (V-band inlet & Outlet)
  • 1.00 A/R: 761208-0071 (T6 inlet & V-Band Outlet)
  • 1.12 A/R: 761208-0072 (T6 inlet & V-Band Outlet)
  • 1.24 A/R: 761208-0073 (T6 inlet & V-Band Outlet)
  • 1.40 A/R: 761208-0074 (T6 inlet & V-Band Outlet)

Center Housing:

One-piece aluminum center housing reduces supercore weight. The center housing is air cooled, features a 16mm ceramic dual ball bearing for premium rotor dynamics, and retains the oil inlet and outlet specifications from previous GTX designs.

Compressor Stage:

Garrett G55 compressor stages are offered in 85m, 88mm, 91mm, 94mm, 98mm, 102mm, and 106mm inducer sizes each with their own horsepower ratings indicated in the model name.

Turbine Housings:

Stainless steel turbine housings in T6 and V-Band inlet and V-band outlet

Short outlet (SFI certified not available)

 

V-band inlet: 4.25 inch (108mm) (same as GTX55)

V-band outlet: 5.15 inch (131mm) (same as GTX55)

Ceramic Dual Ball Bearing

An oil restrictor is recommended for optimal performance with ball bearing turbochargers. G55 turbochargers utilize a massive 16mm dual ball bearing cartridge with steel cages. An oil pressure of 40 – 45 psi at maximum engine speed is recommended to prevent damage to the turbocharger’s internals. In order to achieve this pressure, a restrictor with a 0.040” orifice will normally suffice, but you should always verify the oil pressure entering the turbo after the restrictor in insure that the components are functioning properly. Recommended oil feed is -3AN or -4AN line or hose/tubing with a similar ID. As always, use an oil filter that meets or exceeds the OEM specifications.

 

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