Code No. 14007-AN002
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.
- 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)|
|(Full injection volume) *||620cc||770cc||950cc|
|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.
- 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
|Injector volume||@350kPa||130 (175) X 2L/h||195 (250) X 2L/h|
|@500kPa||95 (140) X 2L/h||145 (205) X 2L/h|
* These amounts are only for reference.
* Measured value at 12V (14V).
* Modification of the fuel pump unit and fuel pump coupler are no longer necessary with this kit.
* These parts are required per vehicle.
Large size Injector
|# of hole||Injector dead time
at 14V (μsec)
Large size Fuel pump
|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|