The heart of the Nissan 370Z, the car that enthusiasts remember fondly from the late 2000s, is its naturally aspirated V6 engine. This iconic sports car was designed to deliver a pure driving experience, and that promise is fulfilled the moment you press the ignition. Understanding the specifics of what lies beneath the hood is essential whether you are a prospective buyer looking at a used model or a current owner wanting to understand your machine better.
The Core Powerplant: The VQ37VHR
Specifically, the 370Z is equipped with the VQ37VHR engine, a 3.7-liter variant of Nissan’s renowned VQ series. This powerplant is not just a number slapped on a hood; it represents years of refinement in the pursuit of smoothness and high-rev performance. Unlike many modern cars that prioritize low-end torque through turbocharging, the 370Z’s character is defined by its ability to breathe deeply and sing at higher RPMs.
Technical Specifications and Design
Under the technical hood, the VQ37VHR features a dual overhead cam (DOHC) design with 24 valves—12 intake and 12 exhaust. The "37" in the name denotes the 3.7-liter displacement, which translates to approximately 332 horsepower in the base model and 350 horsepower in the high-performance Track Edition. This is paired with a 6-speed manual transmission as standard, a choice that underscores the car’s driver-focused philosophy, though a 7-speed automatic was an option for those preferring convenience.
Performance Characteristics and Driving Dynamics
What makes this engine special is its linear power band. Power builds steadily as the tachometer climbs, rewarding the driver for staying in the groove. The lack of turbo lag means the throttle response is immediate and tactile, connecting the driver directly to the road. This setup allows the 370Z to achieve a top speed of around 155 mph, making it a genuine performer on both back roads and open highways.
Reliability and Maintenance Considerations
When discussing what engine a 370Z has, one must also address its reliability. The VQ series is generally regarded as robust and capable of high mileage when maintained correctly. However, like any aging sports car, specific issues can arise. Owners should be aware of potential oil consumption and the importance of regular fluid changes. Keeping up with maintenance is the single best way to ensure this spirited engine provides years of reliable service.
Aftermarket Potential and Tuning
For the enthusiast looking to extract more from their machine, the 370Z platform offers significant headroom for modification. Because the VQ37VHR is well-regarded in the tuning community, a wide variety of aftermarket parts are available. From cold air intakes and high-flow cat-back exhaust systems to turbocharger kits, the power ceiling can be pushed well beyond the factory limits, transforming the car into a true speed demon.
Comparison to Modern Counterparts
It is worth noting how the 370Z’s engine philosophy contrasts with newer models. While today’s cars often rely on downsized turbocharged engines to hit efficiency targets, the 370Z remains a bastion of the old-school approach. The focus is on high-rev enjoyment and mechanical simplicity rather than punching out maximum horsepower figures from a small displacement. This purity is a key reason why the 370Z retains such a strong following and resale value.
