The Bmw E90 320i, while a reliable and well-engineered car, often leaves drivers desiring more power. Modifying the engine to increase performance can be achieved through various approaches, each with its own cost and complexity.
One starting point, given the similarities between the 320i’s N46 engine and the 320si’s N45 (developed for the World Touring Car Championship), is exploring modifications inspired by the 320si. The N46 utilizes Valvetronic, a variable valve lift system, which the N45 lacks. Removing Valvetronic and installing the 320si’s camshafts could be a potential modification.
Further enhancements could involve upgrading the headers, exhaust system, and intake. While ECU chips or reflashes might be available, they often come with a hefty price tag, potentially exceeding $1000. Although the 320si’s engine bay might accommodate a turbocharger kit, this modification would likely entail significant costs and custom fabrication.
For those seeking substantial power gains, exploring a turbocharger option for the 320si engine bay could be a viable path, albeit a costly one. This modification would necessitate careful planning and potentially custom fabrication to ensure proper fit and function.
Ultimately, improving driving skills can often be the most effective and cost-efficient way to maximize the performance of a 320i. Mastering techniques such as smooth shifting, optimal braking, and cornering can unlock hidden potential in the car’s existing power. The 320i, while not as powerful as its six-cylinder counterparts, offers ample mid-range torque for highway passing.
Consider exploring online forums and communities dedicated to BMW tuning. There might be discussions regarding 320i or 320si engine modifications, potentially including information about a WTCC replica build with insights into performance tuning. This could provide valuable information regarding modifications like straight pipe exhaust systems and other potential upgrades.
In conclusion, while upgrading the BMW E90 320i’s performance can be achieved through various modifications, each option involves different levels of cost and complexity. From less expensive options like camshaft swaps and exhaust upgrades to more significant investments like turbocharger installations, choosing the right path depends on individual budget and performance goals. Remember that improving driving skills is a valuable asset that can enhance the driving experience regardless of modifications.
