Description

The HKS GT5565_BB SPECIAL FULL TURBINE KIT represents the pinnacle of forced induction evolution for the R35 GT-R, born from the DNA of the legendary GT1000+ system and refined for unprecedented circuit performance and power delivery.

Engineered specifically as a competition-only solution that transcends conventional tuning limitations, this comprehensive turbo system delivers over 1,200 horsepower while revolutionizing mid-range response and driveability for serious track applications.

Through its symmetrical layout design, ported shroud compressor technology, and heat-resistant cast steel construction, it achieves a remarkable balance—producing extreme power levels (827kW/1,215PS) with improved controllability that has impressed professional test drivers with its rideability compared to previous generations.

Product Highlights

🏆 Competition-Only Powerhouse – 1,200+ Horsepower Capable
The GT5565_BB kit is engineered exclusively for circuit and competition use, delivering 827kW (1,215PS) at 6,800rpm and massive 1,380N·m (140kgf·m) torque at 5,000rpm—performance levels that redefine GT-R capabilities while requiring comprehensive supporting modifications.

🌀 Evolutionary Design from GT1000+ Heritage
Building upon HKS’s legendary GT1000+ foundation, this system introduces redesigned compressor housings specifically optimized for the R35 platform, with ported shrouds engineered into extremely narrow spaces to prevent surging and improve low-end controllability—a breakthrough for circuit driving.

🔥 Heat-Resistant Cast Steel Construction for Extreme Durability
Utilizing the same exhaust manifold and GTII wastegate layout as the GTII900/1000/1000+ systems, with heat-resistant cast steel turbo housings that withstand extreme temperatures and vibration in sustained high-load competition environments.

⚡ Ported Shroud Technology for Enhanced Driveability
Specially designed ported shrouds eliminate compressor surge at engine start and low RPM—transforming the driving experience with improved throttle modulation and predictability that professional test drivers praised as “easier to ride than previous models.”

Technical Specifications

Product Name: GT5565_BB SPECIAL FULL TURBINE KIT

Model Code: 11003-AN020

Compatibility: Nissan GT-R R35 (VR38DETT, 07/2007 – 08/2025). Competition use only—removes catalytic converters and no longer complies with road regulations.

Performance Data:

• Maximum Power: 828kW (1,215PS) @ 6,495rpm

• Maximum Torque: 1,380N·m (140kgf·m) @ 5,025rpm

• Boost Pressure: 200kPa (2.0bar) for maximum output

• Base Wastegate Setting: 88.3kPa (0.9kgf/cm²)

Turbo Specifications:

• Turbine: GT5565_BB / GT5565R_BB A/R 0.73

• Layout: Symmetrical full turbine configuration

• Compressor: Redesigned housing with ported shroud technology

Kit Components:

• Core System: GT5565_BB turbos, heat-resistant cast steel exhaust manifolds (φ47 outlet), GTII φ50 wastegates ×2

• Piping: SUS304 front pipes (φ70-φ75), aluminum casting chamber pipes (φ60-φ70)

• Intake: φ150-80 Power Flow + AL Buffed φ70 suction pipe (includes dedicated turbine suction kit 14021-AN001)

• Additional: Replacement engine mount (right side)

Test Vehicle Configuration:

• Engine: HKS Short Block 4.3L STEP Pro Modified

• Management: ECU rewrite

• Supporting: HKS surge tank, camshaft, valve springs, 1000 spec intercooler

• Classification: Competition use only—not road legal

Performance Philosophy

Goal: To deliver ultimate circuit performance that balances extreme power output (1,200+ horsepower) with improved driveability and mid-range response—creating a turbo system that professional drivers can exploit consistently throughout endurance events and qualifying sessions.

Focus: Symmetrical power delivery, heat management for sustained loads, compressor response for throttle modulation, and complete system integration for competition environments. This represents the final evolution of HKS’s GT-R turbo technology for serious motorsport applications.

Installation & System Requirements

🔧 Complete Engine Removal & Professional Installation Mandatory
This is not a bolt-on upgrade—installation requires complete engine removal, extensive modifications to stock water pipes and heat insulation, and integration with numerous supporting systems.

🛠️ Essential Supporting Components (Not Included):

• Fuel System: Fuel pump upgrade (14007-AN003), high-flow surge tank (13008-AN003)

• Engine Internals: 4.3L STEP Pro block (21004-AN024), camshaft/valve spring set (22002-AN038)

• Cooling: GT1000SPEC intercooler (13001-AN015) with full piping kit (13002-AN004)

• Management: F-CON ECU and EVC boost controller required

⚠️ Critical Usage Restrictions:

• Competition Only: Removes all catalytic converters—completely illegal for road use

• No Warranty: Not covered by dealer warranty due to extreme performance nature

• Filter Restriction: Must use included single-layer gray Power Flow filter for maximum performance

• Public Road Prohibition: Specifically designed and tested for circuit use only

🎯 Target Application Scenarios:

• Professional time attack and endurance racing GT-Rs

• Drag competition vehicles targeting 1,200+ horsepower

• Bonneville or standing mile maximum speed attempts

• Professional drift competition builds requiring instant response and massive power

⚙️ Professional Racing Support Recommended:

• Requires connecting rod bearing clearance adjustment service (24998-AN004) when used with 4.3L STEP Pro

• Crank damper pulley upgrade (24998-AN001) strongly recommended

• Professional tuning and calibration absolutely essential

■Kit configuration