The BMW E90 M3 is a legendary sports car known for its performance prowess. For track enthusiasts, understanding and analyzing vehicle data is crucial for optimizing lap times and improving driving techniques. While the E90 M3 doesn’t offer extensive built-in data logging capabilities, utilizing an OBD2 port with a compatible device like the AIM Solo DL unlocks a wealth of information. This article explores the potential of OBD2 tracking for the E90 M3 on the track.
Accessing Vital Performance Metrics with OBD2
The OBD2 port, standard on most modern vehicles including the E90 M3, provides a gateway to access engine and vehicle data. While the OBD2 port on the E90 M3 offers limited data compared to direct CAN bus access (9 channels vs 28), it still provides valuable information for track use. Devices like the AIM Solo DL can tap into this data stream and record key parameters such as:
- Oil Temperature (OILT): Monitoring oil temperature is crucial for preventing engine damage and ensuring optimal performance, particularly during strenuous track driving.
- Engine Coolant Temperature (ENGT): Keeping an eye on coolant temperature helps identify potential overheating issues and allows for adjustments in driving style or cooling modifications.
- Ambient Air Temperature (EXTT): Understanding ambient temperature helps assess track conditions and their impact on tire performance and engine cooling.
- Lateral G-Forces (ACCT): Measuring lateral G-forces provides insights into cornering grip and allows drivers to fine-tune their driving lines and braking techniques.
Example of oil temperature, water temperature, ambient temperature, and lateral G-forces displayed on the AIM Solo DL.
Beyond Basic Metrics: Unlocking Advanced Analysis
The AIM Solo DL and similar devices not only display real-time data but also log it for post-session analysis. This recorded data becomes invaluable for identifying areas for improvement:
- Real-Time Lap Time Delta: Compare current lap times against the fastest lap of the session to understand performance gains and losses in each sector. This feature allows for immediate adjustments in driving technique.
Real-time lap time delta display on the AIM Solo DL, showing the difference from the fastest lap.
- Predictive Lap Timing: Utilize predictive lap timing functionality to estimate potential lap times based on current performance. This feature assists in pushing driving limits while maintaining consistency.
- Post-Session Data Analysis: Dive deep into logged data after each session to identify areas for improvement, such as braking points, corner entry speeds, and throttle application. Analyze specific data points like time spent at full throttle on straights.
Focusing on What Matters: Data for Improvement, Not Distraction
While real-time data is helpful, it’s crucial to avoid distractions while driving on the track. The AIM Solo DL’s automatic lap time display at the start/finish line ensures lap times are captured without requiring constant monitoring.
The true power of OBD2 tracking lies in post-session analysis. By reviewing recorded data, drivers can make informed decisions about driving techniques, vehicle setup, and potential modifications. This data-driven approach removes guesswork and allows for continuous improvement on the track.
Comprehensive list of channels the AIM Solo DL can track and log from the CAN bus. Note that direct CAN bus connection provides significantly more data points than the OBDII connection. For more information, consult the official AIM documentation: http://www.aim-sportline.com/download/ecu/stock/bmw/2_BMW_OBDIICAN+BMWPT6_101_eng.pdf.
By leveraging the power of OBD2 tracking with devices like the AIM Solo DL, E90 M3 owners can transform their track experience. Data analysis replaces subjective feelings with objective insights, enabling consistent progress and maximizing the performance potential of this iconic sports car.
