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Radiator Kit for S14 / S15 (Silvia)

Radiator Kit for S14 / S15 (Silvia)

¥85,000Price
Lineup
 
Standard 
Part Number (P/N): HPARE-S15
Price: 65,000JPY
 
Multi Flow 
Part Number (P/N): HPARE-S1#CORE
Price: 85,000JPY
 
Specifications
[Standard Series]
  • Series: Standard
  • Tank Type: Top & Bottom Tank
  • Control Plate: None
  • 1/8PT Port: Equipped
  • Fin Pitch: Micro Pitch
  • Core Width: 50 mm
  • Outer Dimensions: H468 mm / L670 mm / W68 mm
  • Dry Weight: 6.71 kg
  • Material: Aluminum
  • Radiator Cap: Included (Valve Opening Pressure: 1.3 kg/cm²)
  • Notes: Dedicated for MT models.
    Modification to the shroud or other parts may be required in case of interference.
    Vehicles equipped with stock intercoolers require modification.
     
[Multi Flow Series]
  • Series: Multi Flow
  • Tank Type: Side Tank
  • Turn Type: Double Turn
  • Control Plate: None
  • 1/8PT Port: Equipped
  • Fin Pitch: Micro Pitch
  • Core Width: 40 mm
  • Outer Dimensions: H430 mm / L665 mm / W58 mm
  • Dry Weight: 5.87 kg
  • Material: Aluminum
  • Radiator Cap: Not Included
  • Notes: Hole modification to the upper support is required when installing on S14/S15.
    For installation on S13 series, the S14/S15 OEM shroud (P/N: 21476-65F11) is required.
     
Features & Descriptions
 
What is the HPI EVOLVE Radiator? 
The EVOLVE Radiator is engineered to push your vehicle's performance to the next level.
It suppresses water temperature rise during circuit and sports driving, while ensuring temperature stability even under low-airflow conditions, such as city traffic jams.
By optimizing the core width, fin shape, and pitch design, it provides reliable cooling performance across all driving stages—from stock vehicles to fully tuned cars.
 
What is the Standard Series? 
The Standard Series utilizes a core design that boasts an overwhelming coolant capacity.
Delivering outstanding cooling efficiency, this model effectively suppresses water temperature rise relative to the number of laps.
It is specifically built to handle demanding conditions where airflow is limited, such as drift sessions or driving on mini-circuits.
 
What is the Multi Flow Series? 
The Multi Flow Series features high-capacity tanks positioned on both sides of the core.
By routing the coolant to turn within the tanks, the fluid passes through the core multiple times for repeated cooling.
This design maximizes heat exchange within a limited surface area over an extended period, delivering unmatched cooling performance and temperature stability even during continuous track sessions.
It provides definitive cooling effects even via airflow from electric fans while stationary after driving.
This model is highly recommended for circuit use and vehicles requiring cooling performance beyond alpha-level upgrades.
 
What is the Micro Pitch? 
By making the pitch of the fins and tubes finer than usual, the radiator achieves superior heat dissipation.
This ensures further stability of water temperatures even under severe conditions, such as sports or circuit driving.
Each unit is custom-designed to optimize cooling efficiency, taking into account the unique engine bay layouts and coolant flow of different vehicle models.
 
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