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HKS GT TURBINE

The selection of universal turbochargers from 500ps to over 1000ps has been developed.


  • GT75115_BB

  • GT75100_BB

  • GT6290_BB

  • GT5565_BB

  • GT4950_BB

Concepts

  • Big turbocharger for inline 6, V8, V6 and inline 4 tuning engines.
  • HKS takes on the challenge of reaching high power zones that have not been covered previously.
  • The turbo system offers a comprehensive application in some of fields, such as drag racing, drifting and track time attack.

Features

  • Compared to previous HKS turbochargers, this turbocharger provides a massive charging air flow despite the small diameter of both compressor/turbo wheels.
  • The V-band turbo housing is made of stainless steel. (*Material may vary from model to model.)
  • Recommended for those who use big singles for track day.
  • CHRA Bearings are ball bearings.
  • The GTIII-5R and 4R designs have a machined aluminum ported shroud that combines the bell mouth design and T51R type recirculation channel to provide both anti-surging and smooth intake air flow.
  • A special, highly corrosion-resistant matt black coating treatment on the surface of the compressor housing prevents aluminum corrosion over time. It also combines with a champagne gold anodized ported shroud to unify the design exterior.

  • High corrosion resistant anodized aluminum coating (Matt Black)

  • Machined aluminum ported shroud (Champagne Gold)

  • T51R type recirculation channel

[ Highly corrosion-resistant matte black coating treatment]

  • A highly corrosion-resistant matt black coating treatment is applied to protect the exterior of the compressor housing from corrosion.
  • This coating is a surface treatment with the ability to provide no surface corrosion even after 240 hours in accelerated corrosion tests.(combined cycle)

*In-house data

[ Bellmouth shape ported shroud ]

  • The ported shroud design inherited from the TO4Z and evolved in the GTIII-4R and 5R.
  • The standard ported shroud has a piped inlet, but the bell-mouth shaped intake air flow channel with a wide inlet diameter is shaped as a "hole" to allow intake air to be taken in through the suction pipe.
  • The structure also makes it easy to produce the turbo spool sound, also known as the 'T51R sound'.

*The volume and sound of the intake sound differs depending on the model. *All models have HKS ported technology.

The bell-mouth ported shroud

The standard ported shroud

Series Lineup

[ Origin of the model name ]

The model name is based on maximum output (compressor side) and turbine wheel diameter.

[ Compressor map ]

Wide maximum efficiency range extending from low boost pressures with a pressure ratio of 2 to high boost pressures with a pressure ratio of 3. Growth potential at high boost pressure.

[ Dimensions ]

Model Output
(ps)		 Compressor Turbine Inlet Outlet Watergate
Inducer Exducer Trim A/R Inducer Exducer Trim A/R Material
GT75115_BB 1150 79mm 98mm 65 0.85 82mm 75mm 84 1.01 Stainless
Steel
Copper		 V-Bamd V-Bamd Free Float
1.15
GT75100_BB 1000 73mm 91mm 65 0.90 82mm 75mm 84 1.01 Stainless
Steel
Copper		 V-Bamd V-Bamd Free Float
1.15
GT6290_BB 900 68mm 84mm 65 0.75 68mm 62mm 84 0.61 Stainless
Steel
Copper		 V-Bamd V-Bamd Free Float
0.83
GT5565_BB 650 58mm 71mm 65 0.72 60mm 55mm 84 0.61 Stainless
Steel
Copper		 V-Bamd V-Bamd Free Float
0.83
GT4950_BB 500 48mm 60mm 65 0.70 54mm 49mm 84 0.72 Stainless
Steel
Copper		 V-Bamd V-Bamd Free Float
0.92

[ Upcoming sizes ]

○GT6290_BB: GTIII-4R compressor housing + turbo housing
○GT4950_BB/GT5565_BB: T25 flange turbo housing
○GT4950_BB: GTIII-RS compressor housing (inlet diameter 100mm)
○GT7095_BB: Turbo size planned to be between GT6290_BB and GT75100_BB.

GT75115_BB

[ GT75115_BB ]

  • Assumed outputs
    1100ps
  • Engine
    RB26 (2.8L) / 2JZ (3.4L)
  • Features
    Assuming high boost with the aim of 1000ps OVER, the compressor is V-band.

GT75100_BB

[ GT75100_BB ]

  • Assumed outputs
    1000ps
  • Engine
    RB26 (2.8L) / 2JZ (3.4L)
  • Features
    Aimed at 1000ps. with the same spool-up as the T51R SPL.BB with boost keeping at high rpm.

GT6290_BB

[ GT6290_BB ]

  • Assumed outputs
    900ps
  • Engine
    RB26 (2.8L) / 2JZ (3.4L)
  • Features
    Turbo characteristic between the GTIII-4R and the GTIII-5R; intercept is shifted to the high rpm side compared to the 4R, but there is no sagging at high rpm and maximum output is improved.

GT5565_BB

[ GT5565_BB ]

  • Assumed outputs
    650ps
  • Engine
    RB26(2.8L)Twin turbo / SR20(2.2L) / 4G63(2.3L)
  • Features
    The size is like GT3037 + α for 500ps Over.

GT4950_BB

[ GT4950_BB ]

  • Assumed outputs
    650ps
  • Engine
    RB26 Twin / SR20 / EJ20 / G16E / VR38 Mirror Twin
  • Features
    Upgrade from GT III-RS to aim for 500ps.
HKS GT TURBINE SERIES
GT TURBINE SUPPORT PARTS

HKS parts for turbo flanges and piping components are set up. Please refer to the parts list required for installation. (*Parts list of support parts is included in turbos.)

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