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The A90 Toyota Supra, equipped with the B58 engine, has become a popular choice among car enthusiasts looking to enhance performance. In this article, we will explore the real-world results of achieving 550 horsepower through bolt-on modifications compared to a custom ECU tune.
Understanding the B58 Engine
The B58 engine is a 3.0-liter inline-six turbocharged engine that delivers impressive power and torque. It has gained a reputation for being highly tunable, making it a favorite among car modifiers. The B58 engine is known for its robust construction and advanced technology, which includes:
- Single twin-scroll turbocharger
- Direct fuel injection
- Variable valve timing
Bolt-On Modifications for the A90 Supra
Bolt-on modifications are a popular choice for enthusiasts looking to increase horsepower without extensive engine work. These modifications can be easily installed and typically include:
- Cold air intake systems
- Upgraded intercoolers
- High-performance exhaust systems
- Enhanced fuel injectors
For our test, we equipped the A90 Supra with the following bolt-on modifications:
- AFe Power cold air intake
- VRSF intercooler
- AWE Tuning exhaust system
- Injector Dynamics ID1050x fuel injectors
Custom ECU Tuning
Custom ECU tuning involves altering the engine’s software to optimize performance based on the modifications made. A professional tuner can adjust various parameters, including fuel maps, ignition timing, and boost levels. This can lead to significant gains in horsepower and torque.
For our comparison, we utilized a well-regarded tuning company that specializes in the B58 engine. Their custom tune was designed to maximize the potential of our bolt-on modifications.
Performance Results
After completing the bolt-on modifications and the custom ECU tune, we took the A90 Supra to the dyno for testing. The results were impressive:
- Bolt-On Mods: 550 HP at the crank
- Custom ECU Tune: 600 HP at the crank
The custom ECU tune provided an additional 50 horsepower over the bolt-on modifications alone. This highlights the importance of tuning when it comes to maximizing engine performance.
Driving Experience
Beyond the numbers, the driving experience also changed significantly after the custom ECU tune. Drivers reported:
- Smoother power delivery
- Improved throttle response
- Enhanced overall drivability
The combination of bolt-on mods and a custom tune transformed the A90 Supra into a more engaging and powerful vehicle, making it a joy to drive on both the street and the track.
Cost Considerations
When considering modifications for the A90 Supra, it’s essential to evaluate the cost versus the performance gains. Here’s a breakdown of potential costs:
- Bolt-On Modifications: $3,000 – $5,000
- Custom ECU Tune: $1,000 – $2,000
While the initial investment in bolt-on modifications may seem significant, the added performance from a custom ECU tune can justify the expense for many enthusiasts.
Conclusion
In conclusion, achieving 550 horsepower in the A90 Supra B58 with bolt-on modifications is a commendable feat. However, pairing these modifications with a custom ECU tune can unlock even greater potential, resulting in enhanced performance and driving enjoyment.
For those looking to maximize their A90 Supra’s performance, investing in both bolt-on mods and a quality custom tune is highly recommended.