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. Big turbocharger for inline 6, V8, V6 and inline 4 tuning engines.
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.
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.
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)
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.
| Model |
Output |
Compressor |
Turbine |
| (ps) |
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 Steal Copper |
| 1.15 |
Specs:
- Target Power Range (ps) - 1150
- Inlet - V-Band
- Outlet - V-Band
- Wastegate - Free Float
- Oil Line *
- Inlet - Special 7/16-24 UNS
- Oulet - Special M8 x 1.25
- Water Line
- Inlet/Outlet - Special M14 x 1.25
NOTE: Only includes the fitting for water piping (AN6). Oil inlet/outlet pipe/banjo adopter is required.
For over 1000ps High Boost, Compressor outlet to be welded to V Band. Developed for ideal performance on the following: RB26 (2.8L)
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