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PRODUCT:TURBO

HKS Turbine 【HKS Turbine】

HKS turbo series are available for a great variety of tuning requirements. "GT III Turbine" is a new generation of turbo combining the latest design CHRA with HKS original housings. "GTII Turbine" is an HKS original design turbo considering various engine characteristics for higher engine power and response.

ACTUATOR TYPE

Suitable for street to circuit uses
(small to mid-power spec.)

Using the intake manifold pressure to control the boost pressure, and excessive exhaust is bypassed from the small valve of the turbo housing to the exhaust.


WASTEGATE TYPE

Suitable for a high power circuit and drag race spec.
Using the intake manifold pressure to control the boost pressure, and excessive exhaust is bypassed from the big valve of the exhaust manifold to the exhaust.



Turbine Series

gt3_title【GTIII TURBINE SERIES】

left:GTⅢ-5R right:GTⅢ-4R

Recent requirements towards fuel efficiency and emissions control have accelerated the development of turbo technology and this has been adapted for tuning.  GTIII turbine series are combined with MHI brand CHRA made with the latest technology. 
The aluminum forged impeller allows achieving high boost at low air flow ranges whilst surging is prevented.  HKS designed housings which utilize the technology, experience and know how built up over many years of turbo charger innovation.  This original design improves the turbine efficiency and minimizes surging.  The combination of the ultimate turbine blades and its optimal housing creates an amazingly versatile turbo.  The turbine efficiency enhancement makes this orthodox floating metal type turbine comparable to a ball bearing type.


GTIII-5R

GTIII-5R
【GTIII-5R】

  • GTIII-5R is a successor model of T51 SPL BB; it is compact in size, but withstands over 800PS.
  • Highly reliable MHI high performance CHRA and highly durable aluminum forged impeller achieve high engine output and better engine response.
  • Replacement with T51R series turbine and the turbo kit using T51R is simple since both installation positions are the same.  (Oil & Water inlet / outlet are designed for GTIII-5R).

GTIII-4R

GTIII-4R
【GTIII-4R】

  • A successor model of TO4Z. Compact in size, but withstandable over 700PS.
  • Highly reliable MHI high performance CHRA & highly durable aluminum forged impeller are well-balanced.
  • Ported shroud function is selectable using an adapter.
    Replacing the position of the bolt securing ported shroud is able to keep the intake air path to reduce surging.

GTIII-RS

GTIII-RS
【GTIII-RS】

  • Highly reliable MHI high performance CHRA.
  • Compatible with GTII 7460, 8262, GT2835, and 3037 series.

【OIL PARTS KIT GTIII-5R & 4R 】

OIL PARTS KIT GTIII-5R & 4R

GT II 7460/8260
【OIL PARTS KIT】

The oil parts kit for GTⅢ-5R and 4R's oil piping. This kit is required to replace T51R and TO4Z to GTⅢ-5R and GTⅢ-4R.


【Spare Parts for GTIII-RS・SS】

GT II 7460/8260
【CHRA GTIII - SS】

For GTIII-SS series, center cartridge(CHRA) is released as a repair part.


GT II 7460/8260
【CHRA GTIII - RS】

For GTIII-RS series, center cartridge(CHRA) is released as a repair part.


SYMMETRY SERIES 【GTII SYMMETRY TWIN TURBO】

Honda RA168E showed overwhelming performance in F1 series in the 1980’s; the turbines for this engine were the symmetrical layout twin turbines. The ideal twin turbines layout for the V-shaped and horizontally opposed engines is a symmetrical twin turbine layout. 
However, 99% of turbines made by turbine manufacturers are the right-hand rotation turbines, and left-hand rotation turbines are rarely made; therefore, it was almost impossible to make symmetrical twin turbines.
HKS developed and manufactured in-house symmetrical twin turbines; HKS’ original symmetrical twin turbines are now complete.
The symmetrical twin turbines included in GT Full Turbine Kit for R35 GT-R, which are highly rated by R35 owners from all over the world, are now available to purchase as a set independent of the rest of the kit.
The flanges for turbine inlet/outlet and gaskets are available separately as optional parts.

GTII 7460 SYMMETRY SET

GTII 7867 SYMMETRY SET (Front)

GTII 7867 SYMMETRY SET (Rear)


【TURBO SPEC】
MODEL Wastegate HP Comp.Wheel Comp. Housing Turbine Wheel Exhaust Housing
Trim Inlet
Dia
(mm)
Outer
Dia
(mm)
Inlet
Dia
(mm)
Outer
Dia
(mm)
Trim Outer
Dia
(mm)
Outlet
Dia
(mm)
Inlet
Flange
Outlet
Flange
A/R
GTII7460
(GT800)
Wastegate 450 49 52.0 74.0 φ70 φ50 81 60.0 54.0 3Bolt
Flange
3Bolt
Flange
0.75
GTII7467
(GT900)
Wastegate 470 49 52.0 74 φ100 φ50 77 67.5 59.3 3Bolt
Flange
3Bolt
Flange
0.66
GTII7867
(GT1000)
Wastegate 550 63 62.0 78.0 φ70 2Bolt
Flange
77 67.5 59.3 3Bolt
Flange
3Bolt
Flange
0.66
GTII8267
(GT1000+)
Wastegate 600 60 64.0 82 φ100 φ50 77 67.5 59.3 3Bolt
Flange
3Bolt
Flange
0.66

GT II SERIES 【GT II SERIES】

GT II 7460/8260
【GTII 7460】

Extreme performance that does not sacrifice initial rise.
  • Turbine assy is HKS original designing of ball bearing turbo.
  • Because HKS has adpted ball bearing type we could keep down the response downslide as much as possible by getting more air with making the suction and exhaust wheel size bigger than the original.
  • Because we have adapted twin scroll, it could hold down the rise of the exhaust pressure at high rpm and ease the burden to the engine by expanding diameter of bypass port than the stock.
  • Our heat-resistant steel of turbine wheel and turbine housing have made big progress on durability and credibility.
  • Original turbine design for the engine characteristic.

GT II 8262 54T 0.69A/R
【GT II 8262 54T 0.69A/R】

  • HKS original design ball bearing type turbo.
  • This turbine was designed as a higher power model of GT II 7460 49T 0.69A/R (14001-AK018). Simply replacing with this turbine can upgrade the current specification easily.
  • The size of this turbine is designed to be comparable to HKS GT3037S and GT3240. It is designed to withstand the engine output between 400hp (295kw) to 520hp (383kw).
  • Compressor housing inlet diameter is 100mm, the outlet is a hose type with diameter of 50mm, the exhaust inlet flange is T25, and the outlet flange is 4-bolt 65mm flange.
    * Oil line fitment is slightly different from GT3037S or GT3240, but simple modification can be made in order to replace the turbine.
    ●Oil Inlet Banjo Bolt for GTII M12 P1.25mm
    ●Oil Outlet Flange for GTII : P=38mm M6 Bolt x 2



【GT II 8262 TEST DATA ※v.s. GTII 7460】

【GT II 8262 TEST VEHICLE DATA】

・SR20DET HKS 2.2L KIT

・HKS 1.2mm GASKET

・HKS 264°CAMSHAFT(IN/EX)

・HKS SUPER POWER FLOW

・HKS R type INTERCOOLER KIT

・SPL STAINLESS EXHAUST MANIFOLD

・SPL φ76 MUFFLER

・EVC Boost 1.50㎏/cm2 (147kpa)

①GTII 8262

 529.0ps(389kw) / 58.2kgf・m (570N・m)

②GTII 7460

 454.0ps(334kw) / 49.9kgf・m (489N・m)


【TURBO SPEC】
MODEL Wastegate HP Comp.Wheel Comp. Housing Turbine Wheel Exhaust Housing
Trim Inlet
Dia
(mm)
Outer
Dia
(mm)
Inlet
Dia
(mm)
Outlet
Dia
(mm)
A/R Trim Outer
Dia
(mm)
Outlet
Dia
(mm)
Inlet
Flange
Outlet
Flange
A/R
GTII 7460 Wastegate 450 49 52.0 74.0 φ100 φ50 1.00 81 60.0 54.0 T25 4Bolt φ65 0.69
GTII 8262 Wastegate 520 54 60.3 82.0 φ100 φ50 1.00 87 62.0 58.0 T25 4Bolt φ65 0.69