GARRETT® G42-1200 COMPACT

Horsepower: 475 - 1200

Displacement: 2.0L - 7.0L

Features

  • GARRETT® G SERIES COMPRESSOR AERODYNAMICS FOR MAXIMUM HORSEPOWER
  • FULLY MACHINED SPEED SENSOR AND PRESSURE PORTS
  • NEW TURBINE WHEEL AERO FOR INCREASED EFFICIENCY AND FLOW
  • STAINLESS STEEL TURBINE HOUSINGS
  • WATER FITTINGS INCLUDED

G-Series G42-1200 COMPACT

Reference Data

The latest Garrett technologies featuring many advanced features.

 

G42-1200 CompactCompressorTurbine
InducerExducerTrimA/RInducerExducerTrim
73mm91mm65.9082mm75mm84
Standard RotationAssembly Kit PNA/RInletOutletWastegateDivided
Assembly Kit Includes Super Core and Turbine Kit879779-5001S1.01V-BandV-BandFree FloatN
879779-5002S1.15V-BandV-BandFree FloatN
879779-5003S1.28V-BandV-BandFree FloatN
879779-5004S1.01T4V-BandFree FloatY
879779-5005S1.15T4V-BandFree FloatY
879779-5006S1.28T4V-BandFree FloatY

G-Series G42-1200 COMPACT

Download Section

The latest Garrett technologies featuring many advanced features.

File NameLinkView
Configuration GuideDownloadView
File NameLinkView
Compressor MapDownloadView
Exhaust Flow ChartDownloadView
Product PhotoDownloadView
Flange DiagramDownloadView
Speed Sensor Kit Installation InstructionDownloadView

G-Series G42-1200 COMPACT

Compressor Map & Exhaust Flow Chart

The latest Garrett technologies featuring many advanced features.

Compressor Map

Exhaust Flow Chart

   

  • CFD (computational fluid dynamics) engineered compressor wheel
  • Optimized blade contour with 10 blade count
  • Forged and fully-machined compressor wheel
  • More power and faster boost response
  • Smaller wheel = lower inertia

  • Garrett® G42-1200 available with compact housing and standard housing
  • Garrett® G42-1450 available only with standard housing
  • (A) Fully machined ported shroud to help reduce compressor surge.
  • (B) A fully machined speed sensor port provides racers the option to add a speed sensor. Comparing shaft speed and boost levels on a compressor map will help determine ideal operating conditions to ensure peak power over a wider operating range.
  • (C ) The fully machined pressure port.
  • Sold separately, the Garrett ® G Series speed sensor kits have new part numbers and are not compatible with GT/GTX kits. Easier to install and will not need to be adjusted for length like previous sensors. Simply remove bolt that secures the plug, insert the speed sensor and re-tighten the bolt.

Speed Sensor Kits

G Series Street Kit: 781328-0003 (includes speed sensor, wire harness, gauge)

G Series Pro Kit: 781328-0004 (includes speed sensor, wire harness)

  • Aluminum backplate for reduced weight (GTX42 Steel)
  • Includes (2) -6AN water fittings
  • Center housing to turbine housing Vband connection makes installation easy for installers. (Same Vband as GTX42 / GTX45)
  • GTX and GT turbine housings are not interchangeable
  • Full 360 degree orientation of compressor housing and non wastegated turbine housings
  • An o-ring between the compressor housing and backplate reduces any boost pressure leakage

  • Twin piston rings on both sides of the shaft reduce the likeliness of oil leakage from the center housing to the compressor or turbine stage.
  • A new oil deflector redirects oil away from the compressor stage seals reducing possibility of oil leakage through the seals.
  • 10mm ceramic dual ball bearing cartridge (Same as GTX42)

  • The turbine wheel features all new aerodynamics to improve flow and boost response.
  • Inconel super alloy construction for temperatures up to 950C
  • New turbine wheel flows 10% more and has peak efficiency of 77% (Compared to GTX42 at 74% with 1.01A/R)
  • 82mm inducer / 75mm exducer 84 Trim

  • G42 turbine housings are made from stainless steel to provide ultimate durability and temperature capability up 950 deg C degrees | 1742 deg F
  • B&C qualified
  • GTX and GT housings not interchangeable.
  • Turbine housings are available in V-band, open, free float configurations for launch
  • V-band inlet is 3.6 inch / 92mm ( compared to GTX30/35 3 inch / 76mm
  • V-band outlet is 4.3 inch / 109mm