2008 Infiniti G37s Coupe 0-60

The 2008 Infiniti G37S Coupe marked a significant step forward for Infiniti's performance credentials, offering a compelling blend of luxury, athleticism, and technology. This article delves into the technical specifications, engineering choices, real-world performance, and long-term considerations of this iconic sports coupe, providing valuable insights for automotive professionals.

Technical Specifications and Engineering

At the heart of the G37S Coupe lies the VQ37VHR engine, a 3.7-liter naturally aspirated V6. This engine, a refined evolution of Nissan's legendary VQ series, boasts 330 horsepower and 270 lb-ft of torque. Key technical highlights include:

Variable Valve Event and Lift (VVEL): VVEL dynamically adjusts valve lift and duration on the intake side, optimizing airflow for both low-end torque and high-rpm power. This system provides more precise control over the intake valves compared to traditional variable valve timing systems.
Aluminum Alloy Block and Heads: The use of lightweight aluminum reduces overall vehicle weight and contributes to improved handling and fuel efficiency.
Forged Steel Crankshaft: The forged crankshaft enhances durability and allows the engine to withstand high revs without compromising reliability.
Four Valves per Cylinder: The four-valve configuration optimizes airflow for improved combustion efficiency and power output.
Sequential Multi-Point Fuel Injection: This system ensures precise fuel delivery to each cylinder, optimizing combustion and reducing emissions.

The G37S was offered with a choice of two transmissions: a 6-speed manual and a 5-speed automatic with manual shift mode and Downshift Rev Matching (DRM). The manual transmission, preferred by enthusiasts, provided a direct connection to the engine, allowing for greater driver engagement. The automatic transmission, while less engaging, offered smoother shifts and greater convenience, particularly in urban driving.

The suspension of the G37S features:

Double Wishbone Front Suspension: This design provides superior handling and stability compared to simpler suspension setups.
Multi-Link Rear Suspension: This advanced rear suspension system allows for independent control of wheel movement, improving ride quality and handling.
Sport-Tuned Suspension (S Model): The 'S' trim includes stiffer springs, dampers, and stabilizer bars, enhancing handling and reducing body roll.
Viscous Limited-Slip Differential (VLSD): The VLSD improves traction by distributing power to the wheel with the most grip, particularly beneficial during cornering.

Braking is handled by four-wheel disc brakes with ABS. The 'S' model features larger rotors and calipers, providing enhanced stopping power.

Real-World Performance and Comparison

The 2008 Infiniti G37S Coupe's 0-60 mph time is a key performance metric. Independent tests typically place it in the 5.2 to 5.5 second range, depending on the transmission and testing conditions. This performance was highly competitive for its time and remains respectable even by today's standards. Top speed is electronically limited to 155 mph.

Compared to its rivals, the G37S offered a compelling package. Competitors included:

BMW 335i Coupe (E92): The 335i offered a more refined driving experience and better fuel economy thanks to its turbocharged engine, but its reliability could be questionable. The G37S was generally considered to be more reliable.
Audi S5 Coupe: The S5 boasted a more luxurious interior and all-wheel drive, but its heavier weight resulted in slower acceleration compared to the G37S.
Mercedes-Benz CLK550: The CLK550 provided a more comfortable and refined grand touring experience, but lacked the sporty handling and directness of the G37S.
Lexus IS350: The IS350 offered similar levels of luxury and performance, but its styling was more conservative compared to the G37S.

Pros and Cons

The G37S Coupe presents a mix of strengths and weaknesses:

Pros:

Powerful Engine: The VQ37VHR engine provides ample power and a thrilling exhaust note.
Sharp Handling: The sport-tuned suspension and VLSD contribute to excellent handling and cornering performance.
Attractive Styling: The G37S Coupe boasts a sleek and stylish design that has aged well.
Value for Money: The G37S offered a lot of performance and features for its price, especially in the used market.
Relatively Reliable: Compared to some of its European rivals, the G37S is generally considered to be more reliable.

Cons:

Firm Ride: The sport-tuned suspension can result in a firm and sometimes uncomfortable ride on rough roads.
Fuel Economy: Fuel economy is not a strong point, particularly with the manual transmission.
Infotainment System: The infotainment system is dated and lacks modern features.
Interior Quality: While generally well-built, the interior materials are not as luxurious as some of its rivals.

Reliability Aspects and Maintenance Tips

The VQ37VHR engine is generally considered to be reliable, but certain issues can arise. Common issues include:

Oil Consumption: Some VQ37VHR engines are known to consume oil, particularly at higher mileage. Regular oil level checks are crucial.
Gallery Gasket Failure: This is a well-known issue where the gasket between the engine block and the gallery (oil passage) fails, leading to oil leaks. Preventative replacement is recommended.
Timing Chain Tensioner Issues: The timing chain tensioner can wear prematurely, leading to timing chain slack and potential engine damage. Listen for rattling noises upon startup.
Wheel Bearing Wear: Front wheel bearings can wear out, especially if the car is driven aggressively.

Maintenance Tips:

Regular Oil Changes: Use high-quality synthetic oil and adhere to the recommended oil change intervals (or even more frequently).
Coolant Flushes: Regular coolant flushes prevent corrosion and maintain optimal engine cooling.
Brake Fluid Flushes: Brake fluid absorbs moisture over time, reducing braking performance. Flush the brake fluid every two years.
Transmission Service: Service the transmission according to the manufacturer's recommendations. For the automatic transmission, fluid changes are essential. For the manual transmission, check the fluid level and condition regularly.
Inspect for Leaks: Regularly inspect the engine for oil leaks, particularly around the gallery gasket area.

Future Trends and Automotive Industry Outlook

The automotive industry is undergoing a radical transformation, driven by electrification, autonomous driving, and connectivity. While the G37S Coupe represents a bygone era of naturally aspirated performance, its legacy as a driver-focused sports coupe remains relevant.

Future trends that will impact the automotive industry include:

Electrification: Electric vehicles (EVs) are rapidly gaining market share, driven by advancements in battery technology and government incentives. The shift to EVs will significantly reduce reliance on internal combustion engines.
Autonomous Driving: Self-driving technology is progressing rapidly, with the potential to revolutionize transportation. Fully autonomous vehicles are still several years away, but advanced driver-assistance systems (ADAS) are becoming increasingly common.
Connectivity: Connected car technologies are transforming the driving experience, providing access to real-time traffic information, entertainment, and vehicle diagnostics.
Shared Mobility: Ride-sharing services and car-sharing programs are changing the way people access transportation, particularly in urban areas.
Software-Defined Vehicles: Vehicles are increasingly becoming software-defined, with software playing a critical role in controlling vehicle functions and features.

As the automotive industry evolves, the focus is shifting from raw horsepower to efficiency, sustainability, and connectivity. While the classic sports coupe may become less prevalent, the desire for engaging and enjoyable driving experiences will endure. Future performance vehicles may utilize electric powertrains and advanced driver-assistance systems to deliver thrilling performance while minimizing environmental impact.

Looking forward, Automotive professionals need to embrace these emerging technologies and adapt their skills to meet the changing demands of the industry. Expertise in electronics, software, and data analytics will become increasingly valuable. Continuous learning and adaptation are essential for success in the rapidly evolving automotive landscape.