FUEL UPGRADE KIT GT-R Explanation of the product Application chart
GT-R R35

Code No. 14007-AN002

 

 

  • Fuel Upgraded Kit exclusively for VR38DETT/R35 GT-R.
  • The Injector and Fuel Pump required for performance improvement by GT800 are included in the Kit.
  • 700cc Injectors and 860cc Injectors are available.

 

 

●Features

The factory injector of R35 GT-R (VR38DETT) can be used up to 570ps boost setting. For higher engine output, replacing the factory injector with the larger capacity injector is a must.

 

 

 

●Injector
  • The injection volume is increased comparing to the factory volume so it works for higher engine output without increasing the fuel pressure.
  • Dimension of the injector is same as the factory so it can be installed with the factory fuel rail.
  • 2 tapered injection holes spray better than the factory injector.

* The injection direction is set toward the intake valve. When the valve is opened, fuel is sprayed directly toward the inside cylinder. Therefore, the response gap of the A/F at acceleration is less than the 1-jet type. The improvement can be experienced during revving the engine a few times while at neutral. Comparing to non-HKS Injectors utilizing the same design, HKS Injector spray fuel in a mist form, so combustion can be more stable. The difference is more obvious especially on cold start. The stable combustion reduced the black smoke at accelerating.

 

○Injector's Flow Amount & Corresponding Engine Output
  Stock HKS (700cc) HKS (860cc)
Code # 16600-JF00A 14002-AN002 14002-AN003
Injector volume 565cc 700cc 860cc
(Full injection volume) * 620cc 770cc 950cc
Max. horsepower 570ps 650ps 800ps
Number of injection hole 12 holes 2 holes tapered 2 holes tapered

* Measured value at 350kPa. Actual value may be decreased due to injector dead time.

 

 

●Fuel pump
  • Largest amount of flow of the in-tank fuel pumps.
  • Installation can be done without modification since the dimension is the same as the factory.
  • Less power consumption and low operation noise.
  • High relief pressure enables stable fuel supply.

* No modification is necessary. (See Remarks.)

 

○Fuel Pump's Flow Amount & Corresponding Engine Output
  Stock HKS
Injector volume @350kPa 130 (175) X 2L/h 195 (250) X 2L/h
@500kPa 95 (140) X 2L/h 145 (205) X 2L/h
Max. horsepower* 700ps 950ps

* These amounts are only for reference.
* Measured value at 12V (14V).

 

 

●Remarks

* Modification of the fuel pump unit and fuel pump coupler are no longer necessary with this kit.

 

 

●Components
  • Injector X 6
  • O-ring for Injector X 6
  • Fuel pump X 2
  • etc.

* These parts are required per vehicle.

 

 

Large size Injector
Injector
volume
Injector type Engine Connector
color
Connector
shape
# of hole Injector dead time
at 14V (μsec)
Code no. Price
(w/o tax)
Remark
700 Top feed
/highly-resistive
VR38DETT Yellow Round 2
(tapered)
1300 14002-AN002    
860 Top feed
/highly-resistive
VR38DETT Purple Round 2
(tapered)
1500 14002-AN003    

 

Large size Fuel pump
Vehicle Model Engine
Model
Year Outer dia. length
(mm)
HKS pump
(L/h)
Stock pump
(L/h)
Compare
to Stock
Code no. Price
(w/o tax)
Remark
GT-R R35 VR38DETT 07/12- φ38 114 195 130 150% 14007-AN003   2 set

 

Vehicle Model Engine Model Year Outer diameter Length(mm) HKS pump(L/h) Normal pump(L/h) HKS injector Normal injector Code No. Price Remarks
GT-R R35 VR38DETT 07/12- 38 114 195 130 860 565 14007-AN002 * Discontinued.

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HKS