2005 Infiniti G35 Sedan Specs
The 2005 Infiniti G35 sedan occupies a special place in automotive history. It was a turning point for the brand, injecting much-needed performance and style into a market segment dominated by European and Japanese rivals. For enthusiasts, mechanics, and those considering a G35, understanding its specifications is crucial. This article provides a deep dive into the 2005 G35 sedan's specs, offering valuable insights for everyone from weekend mechanics to seasoned automotive professionals.
Engine Options and Performance
The 2005 G35 sedan offered two distinct engine options, both variations of Nissan's renowned VQ35DE engine. This engine family is celebrated for its smooth power delivery, durability, and tunability, making it a favorite among enthusiasts.
3.5L VQ35DE (Standard Output)
The base engine, found in most 2005 G35 sedans, produced approximately 260 horsepower and 260 lb-ft of torque. This version of the VQ35DE provided a strong balance of performance and fuel efficiency. Its internals were robust, making it a reliable choice for daily driving and spirited weekend runs.
Example: A common upgrade for this engine is installing a cold air intake. This can improve airflow and potentially increase horsepower by a small margin.
3.5L VQ35DE (High Output)
The higher-output version of the VQ35DE, available in the G35 Sedan models with a 6-speed manual transmission, generated around 280 horsepower and 270 lb-ft of torque. This increase in power was achieved through subtle modifications to the engine's components and ECU tuning. These models are highly sought after by enthusiasts for their improved acceleration and overall driving experience.
A key difference lay in the engine management system and the exhaust. The higher-output version often featured a more aggressive ECU map and a slightly less restrictive exhaust system, contributing to the power boost. Additionally, the 6-speed manual models typically had shorter final drive ratios, further enhancing acceleration.
Understanding the subtle differences between these two engine configurations is essential for mechanics when diagnosing performance issues or performing modifications. Identifying the specific ECU calibration and exhaust components is crucial for accurate repairs and upgrades.
Transmission Options
The 2005 G35 sedan offered a choice between two transmissions, catering to different driving preferences.
5-Speed Automatic
The standard transmission was a 5-speed automatic with a manual shift mode. This transmission provided smooth and predictable shifts, making it suitable for everyday driving. While not as engaging as the manual, the automatic transmission offered convenience and ease of use. The 5-speed automatic used an electronically controlled system, adjusting shift points based on driving conditions and throttle input.
6-Speed Manual
The optional 6-speed manual transmission was a highlight for enthusiasts. This transmission offered precise and engaging shifts, allowing drivers to fully exploit the VQ35DE's power. The 6-speed manual was only available on models with the higher-output engine, creating a desirable combination for performance-oriented drivers. Its close gear ratios further enhanced acceleration and made it a joy to drive on winding roads.
Chassis and Suspension
The 2005 G35 sedan's chassis and suspension were designed to provide a balance of comfort and handling. Its 4-wheel independent suspension contributed to its reputation as a capable sports sedan.
Front Suspension
The front suspension utilized a double-wishbone design. This configuration provided excellent control over wheel movement, reducing body roll and improving steering precision. Double-wishbone suspensions are known for maintaining optimal tire contact with the road, leading to enhanced grip and handling.
Rear Suspension
The rear suspension also featured a multi-link design. This setup allowed for independent control of each wheel, further enhancing handling and stability. Multi-link suspensions are known for their ability to absorb bumps and maintain a smooth ride, even on rough roads.
Brakes
The 2005 G35 sedan came standard with 4-wheel disc brakes. These brakes provided ample stopping power and were equipped with ABS (Anti-lock Braking System). The ABS system prevented wheel lockup during hard braking, allowing drivers to maintain steering control. The brake system also incorporated EBD (Electronic Brakeforce Distribution), which optimized brake force distribution between the front and rear wheels based on load and driving conditions.
Dimensions and Weight
Understanding the G35's dimensions and weight is helpful for various purposes, from determining garage fitment to calculating performance metrics.
- Wheelbase: 112.2 inches
- Length: 191.1 inches
- Width: 71.5 inches
- Height: 57.7 inches
- Curb Weight: Approximately 3,350-3,500 lbs (depending on options and transmission)
The curb weight varied slightly depending on the specific model and options. Models with the 6-speed manual transmission and sunroof tended to be slightly heavier.
Interior and Features
The 2005 G35 sedan's interior was designed to provide a comfortable and sporty environment. Standard features included power windows, power locks, air conditioning, and a premium audio system. Optional features included leather seats, a sunroof, and a navigation system.
The dashboard layout was driver-focused, with easy-to-reach controls and clear instrumentation. The seats provided ample support and were well-bolstered, keeping occupants secure during spirited driving. The overall interior design reflected Infiniti's commitment to luxury and performance.
Fuel Economy
Fuel economy for the 2005 G35 sedan varied depending on the engine and transmission. EPA estimates were as follows:
- 5-Speed Automatic: Approximately 19 MPG city / 26 MPG highway
- 6-Speed Manual: Approximately 17 MPG city / 24 MPG highway
Real-world fuel economy could vary depending on driving habits and conditions. Aggressive driving and city traffic typically resulted in lower fuel economy figures.
Common Issues and Reliability
While the 2005 G35 sedan is generally considered a reliable vehicle, there are a few common issues to be aware of.
- Oil Consumption: Some VQ35DE engines, particularly those with higher mileage, may experience oil consumption issues. Regularly checking the oil level and using high-quality oil can help mitigate this problem.
- Camshaft Position Sensors: Camshaft position sensors can sometimes fail, leading to drivability issues and diagnostic trouble codes. Replacing these sensors is typically a straightforward repair.
- Valve Cover Gaskets: Valve cover gaskets can leak over time, resulting in oil leaks. Replacing these gaskets is a relatively common maintenance item.
- Suspension Components: Suspension components, such as ball joints and control arm bushings, can wear out over time, leading to loose handling and noise. Regular inspection and replacement of worn components are important for maintaining optimal handling.
Despite these potential issues, the 2005 G35 sedan is generally a well-built and reliable vehicle. Regular maintenance and prompt attention to any problems can help ensure many years of trouble-free driving.
Conclusion
The 2005 Infiniti G35 sedan offers a compelling combination of performance, style, and reliability. Understanding its specifications, from its engine options and transmission choices to its chassis and suspension design, is crucial for anyone considering purchasing or working on this iconic vehicle. Whether you're a car enthusiast seeking a fun and engaging sports sedan or a mechanic looking to diagnose and repair common issues, the information provided in this article will prove invaluable.