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When it comes to upgrading your Nissan GT-R’s turbo system, one of the most critical decisions you’ll face is choosing the right turbo size. The two most common options are 68mm and 72mm turbos. Each size offers distinct advantages and drawbacks that can significantly impact your vehicle’s performance.
Understanding Turbo Size
Turbo size refers to the diameter of the compressor wheel. This measurement plays a crucial role in determining the turbocharger’s airflow capacity and efficiency. A larger turbo can provide more power but may also introduce lag, while a smaller turbo can spool up faster but may limit peak power.
68mm Turbo Upgrades
The 68mm turbo is a popular choice for those looking for a balance between performance and response. It is often favored for street applications and moderate power goals.
- Advantages:
- Faster spool time, providing quicker throttle response.
- Better suited for daily driving and street use.
- Lower potential for turbo lag.
- Drawbacks:
- Limited peak power compared to larger turbos.
- May not support high horsepower builds effectively.
Performance Metrics
With a 68mm turbo, you can expect a power range typically between 500 to 800 horsepower, depending on supporting modifications and tuning. This size is ideal for enthusiasts who want a reliable and responsive setup without pushing the limits of their engine.
72mm Turbo Upgrades
The 72mm turbo is designed for those seeking maximum power and performance. It is often chosen by racers and serious enthusiasts aiming for high horsepower figures.
- Advantages:
- Higher airflow capacity, allowing for greater peak power.
- Suitable for race applications and high-performance builds.
- Can support horsepower levels exceeding 1000.
- Drawbacks:
- Increased turbo lag, impacting throttle response.
- Less suitable for daily driving due to lag and responsiveness.
Performance Metrics
The 72mm turbo can achieve power outputs typically ranging from 800 to over 1200 horsepower, making it a top choice for those who prioritize peak performance in competitive settings.
Choosing the Right Size for Your Needs
Choosing between a 68mm and 72mm turbo upgrade ultimately depends on your specific performance goals, driving style, and the intended use of your GT-R. Here are some factors to consider:
- Driving Style: If you prioritize daily drivability and responsiveness, the 68mm turbo may be the better option.
- Power Goals: For those aiming for maximum horsepower and track performance, the 72mm turbo is more suitable.
- Supporting Modifications: Ensure your engine and supporting mods can handle the increased power associated with a larger turbo.
- Tuning: Proper tuning is essential for both sizes to optimize performance and reliability.
Conclusion
In summary, both the 68mm and 72mm turbo upgrades offer unique benefits tailored to different performance needs. By understanding the characteristics of each size, you can make an informed decision that aligns with your goals for your Nissan GT-R.