Patrol Y62 4.0L Supercharger: VT vs HKS Compared

Quick Summary: The Nissan Patrol Y62 4.0L VQ40DE V6 is a capable desert SUV in stock form, but owners who push it through deep sand, tow heavy loads, or run oversized tyres know the engine needs more. Two bolt-on supercharger options exist — the VT Eaton TVS kit delivering roughly 40% more power, and the HKS water-cooled centrifugal kit that has been a proven option for over a decade. Both use water-cooled intercooling, both are bolt-on installations, and both transform the 4.0L into territory that rivals the Patrol 5.6L V8. ECU tuning is not included with either kit and must be sourced separately.

Why the Patrol Y62 4.0L Needs More Power

The Nissan Patrol Y62 has earned the nickname "Desert Prince" across Middle East markets for good reason. It is purpose-built for harsh terrain — long desert crossings, towering sand dunes, and brutal summer heat. The VQ40DE 4.0-litre V6 is a reliable workhorse, but it was never designed to be a powerhouse.

In stock configuration, the VQ40DE delivers adequate performance for unladen highway driving. The problems surface when real-world conditions arrive. Deep sand requires sustained high-RPM driving in lower gears where the naturally aspirated V6 runs out of breath. Add a bullbar, roof rack, recovery equipment, a full load of passengers, and 285-width all-terrain tyres, and the power deficit becomes impossible to ignore. Highway overtaking with a loaded vehicle becomes an exercise in planning, and steep dune climbs that the 5.6L V8 Patrol handles without hesitation force the 4.0L driver to rely on momentum rather than available power.

The VQ40DE's bottom end is robust. Nissan engineered this engine for harsh conditions and high ambient temperatures, giving it the mechanical strength to handle additional stress from forced induction. This is why supercharging the VQ40DE works so effectively — the engine was overbuilt for its stock power output, leaving significant headroom for boost.

Bolt-on naturally aspirated modifications like intake and exhaust upgrades yield marginal gains at best on this platform. Forced induction is the only realistic path to meaningful power increases without engine replacement. Two supercharger kits address this directly: the VT Eaton TVS system and the HKS centrifugal system. Both are available through AME Motorsport.

VT Eaton TVS Supercharger Kit

The Nissan Patrol Y62 4.0 VT Supercharger Kit is built around the Eaton TVS (Twin Vortices Series) platform — a positive-displacement, roots-type supercharger with four-lobe rotors. This is the same family of superchargers used by OEMs in factory supercharged vehicles, chosen for its efficiency, low noise, and proven durability.

The key characteristic of the Eaton TVS design is linear, progressive boost delivery. Because the supercharger is mechanically driven from the crankshaft, boost is available from just above idle and builds proportionally with engine speed. There is no lag, no sudden power surge, and no RPM threshold to reach before boost arrives. For desert driving, where traction management matters as much as outright power, this predictable delivery is a significant advantage.

The VT kit targets approximately 40% more power over stock — enough to push the 4.0L VQ40DE into performance territory comparable to the Patrol's own 5.6L VK56VD V8. That transformation turns the Y62 4.0L from a vehicle that works hard in demanding conditions into one that handles them with genuine authority.

What's in the VT Kit

• Eaton TVS supercharger unit with 3-year Eaton warranty
• Water-cooled intercooler system — reduces intake charge temperatures for consistent power in high-ambient conditions
• Dedicated oil cooling system — maintains supercharger lubrication independent of engine oil
• CNC-machined mounting brackets — engineered specifically for the Y62 engine bay
• Belt drive system — complete serpentine arrangement with tensioner
• Silicone hoses and clamps — high-temperature-rated throughout

Important: ECU tuning is not included in the VT supercharger kit. Engine management calibration must be handled separately to match your specific fuel type, altitude, and modifications. This ensures a tailored tune rather than a generic calibration.

HKS Water-Cooled Centrifugal Supercharger Kit

The Nissan Patrol Y62 V6/4.0 HKS Supercharger Kit takes a different engineering approach. HKS uses a centrifugal supercharger design — mechanically driven like the Eaton TVS, but generating boost through a high-speed impeller rather than positive-displacement rotors.

The HKS kit has been available and selling for over ten years, establishing a long track record on the VQ40DE platform. That decade-plus of real-world use across thousands of Patrol Y62 vehicles in harsh desert environments speaks to the kit's durability and refinement.

How Centrifugal Differs from Roots-Type

A centrifugal supercharger builds boost progressively with RPM. At low engine speeds, boost is minimal. As RPM climbs, the impeller spins faster and boost pressure increases. This creates a power delivery curve that feels more like a naturally aspirated engine with significantly more top-end punch.

For drivers who spend most of their time at mid-to-high RPM — sustained highway cruising, high-speed desert runs — the centrifugal design places its power gains exactly where they are most useful. The trade-off is less low-RPM boost compared to a positive-displacement design.

What's in the HKS Kit

• HKS centrifugal supercharger unit — proven design with 10+ years of market history
• Water-cooled intercooler system — manages intake temperatures in high-heat environments
• Complete bolt-on hardware — brackets, belt drive, hoses, and fittings
• Engineered for VQ40DE — designed specifically for the Patrol Y62 4.0L application

Important: ECU tuning is not included with the HKS kit. Calibration must be arranged separately to suit your vehicle's configuration, fuel grade, and operating conditions.

Head-to-Head Comparison: VT vs HKS

Which Kit Suits Your Driving Style?

Choose the VT Eaton TVS kit if your driving involves frequent low-speed, high-load situations — dune climbing, rock crawling, towing, or slow technical off-road sections. The positive-displacement design provides boost from idle, giving you torque exactly when traction and control matter most.

Choose the HKS centrifugal kit if your Patrol spends more time at sustained highway speeds, high-speed desert touring, or you prefer the feel of a naturally aspirated power curve with significantly more top-end capability. The decade-plus track record also appeals to owners who value long-term proven reliability on this specific platform.

Both kits are available through AME Motorsport and both deliver the kind of power increase that transforms the Y62 4.0L driving experience.

Dyno Results and Real-World Performance

The VT kit's approximately 40% power increase over stock is the defining number. For the VQ40DE, that level of gain pushes the 4.0L V6 into performance territory that rivals the Patrol Y62 5.6L V8 — a vehicle that costs significantly more to purchase and run.

In practical terms, this means:

• Sand dunes that previously required multiple attempts or momentum-based approaches can be climbed with sustained throttle and available torque
• Highway overtaking with a fully loaded vehicle changes from a slow, calculated manoeuvre to a confident, immediate response
• Towing becomes far less strained, with the engine operating lower in its rev range under load
• High-altitude driving benefits from forced induction compensating for reduced air density, where a stock naturally aspirated engine loses power proportionally

The real-world difference is most noticeable in the conditions that expose the stock engine's limitations. A loaded Patrol climbing a steep dune face in 40-degree heat is exactly where forced induction earns its value. The supercharger maintains consistent airflow regardless of ambient temperature and altitude — conditions where a stock VQ40DE is already working at a disadvantage.

Installation Overview

Both the VT and HKS kits are engineered as bolt-on systems. No cutting, welding, or permanent modification to the chassis or engine is required for either kit.

Factory Systems Preserved

The stock radiator, thermostat, cooling fans, and engine accessories remain untouched with both kits. The supercharger cooling systems operate independently — the water-cooled intercooler circuits do not burden the factory cooling system. This is particularly important for the Patrol Y62, which already works its cooling system hard in desert ambient temperatures.

Professional Installation Recommended

While both kits are bolt-on in nature, professional installation by an experienced workshop is recommended. Correct belt tension, intercooler plumbing routing, and oil line installation all benefit from experienced hands. AME Motorsport can advise on qualified installation centres.

ECU Calibration — A Separate Step

Neither the VT nor the HKS kit includes ECU tuning. This is intentional and benefits the owner. A standalone calibration allows the tune to be tailored to your specific fuel type (91, 95, or 98 octane), altitude, and any other modifications on the vehicle. A generic tune cannot account for these variables. Work with a qualified tuner who has experience with forced-induction VQ40DE applications.

Key Benefits of Supercharging the VQ40DE

• ~40% power increase — transforms the 4.0L into 5.6L V8-level performance
• Bolt-on installation — no cutting, welding, or permanent chassis modification with either kit
• Water-cooled intercooling — both kits manage intake temperatures for consistent power in extreme heat
• Desert-proven platforms — both kits have established track records in harsh Middle East conditions
• Linear or progressive delivery — choose between immediate Eaton TVS boost or RPM-building centrifugal power
• Factory cooling preserved — independent supercharger cooling does not burden stock systems
• High-altitude compensation — forced induction offsets the power loss that naturally aspirated engines suffer at elevation
• Retains factory reliability — the VQ40DE's overbuilt bottom end handles boost comfortably within designed limits

Frequently Asked Questions

Does supercharging the VQ40DE make it as powerful as the 5.6L V8 Patrol?

The approximately 40% power increase from the VT kit pushes the 4.0L V6 into comparable performance territory to the VK56VD 5.6L V8. In real-world driving — particularly in sand, on highways, and when towing — a supercharged 4.0L Patrol performs at a level that the stock V8 owners will recognise. For owners who want V8-level capability from their V6 platform, supercharging is the most effective path. You can also explore the Nissan Patrol V8/5.6 VT Supercharger Kit if you already own the 5.6L and want even more from that engine.

Is ECU tuning included with either kit?

No. ECU tuning is not included with the VT kit or the HKS kit. Engine management calibration must be sourced and performed separately. This is by design — your tune needs to account for your specific fuel grade, altitude, and any additional modifications. A properly tailored tune ensures optimal power delivery, fuel economy, and engine protection. Work with a qualified tuner experienced in forced-induction VQ40DE applications.

Can I still use my Patrol for heavy off-road and desert driving after installation?

Absolutely. Both kits are specifically designed for the Patrol Y62's primary use case — desert touring, dune driving, and demanding off-road conditions. The water-cooled intercooler systems on both kits are critical here, managing intake temperatures in the extreme ambient heat that Patrol owners routinely encounter. Factory ground clearance, approach angles, and cooling systems remain unaffected by either installation.

How does the VT kit compare to the HKS kit for dune driving specifically?

For dedicated dune driving, the VT Eaton TVS kit has an advantage in low-RPM boost availability. Positive-displacement superchargers provide boost from just above idle, giving you torque when you need traction control at lower speeds on steep faces. The HKS centrifugal kit builds boost with RPM, which favours sustained high-speed runs across open desert. Both are highly capable in sand — the choice depends on whether your driving is more technical low-speed climbs or high-speed desert touring.

What about the Patrol Y61 — is there a supercharger option for the older model?

Yes. AME Motorsport offers the Nissan Patrol Y61 4.8 HKS Supercharger Kit for the TB48DE inline-six engine in the Y61 platform. The Nissan Navara 4.0L also shares the VQ40DE engine family — see the Nissan Navara 4.0 VT Supercharger Kit for that application.

Related Supercharger Kits

The Patrol Y62 sits within a broader Nissan lineup that AME Motorsport supports with forced induction:

• Nissan Patrol Y62 4.0 VT Supercharger Kit
• Nissan Patrol Y62 V6/4.0 HKS Supercharger Kit
• Nissan Patrol V8/5.6 VT Supercharger Kit
• Nissan Patrol Y61 4.8 HKS Supercharger Kit
• Nissan Navara 4.0 VT Supercharger Kit
• Browse All Supercharger Kits