In this pit lane interview, we’re with Sean from Ramsdell Racing to explore the advanced ECU technology behind the Dream Project S15 at the World Time Attack Challenge. Sean breaks down how the Emtron ECU is one option using OEM tuning stratagies to transform power management in high-performance applications, making it possible to deliver more and more horsepower effectively through the tyres and onto the race track.
With Emtron’s sophisticated tractive force calculation, Sean explains how they’re optimizing torque delivery based on real-time data from tire diameter, diff ratios, gearbox ratios, and more. This technology ensures the S15 can push the limits while maintaining traction in every gear, ultimately translating to faster lap times and a smoother driving experience.
A major innovation highlighted in this interview is throttle mass flow modeling, which lets torque be precisely mapped to the driver’s foot pedal. This linear relationship offers drivers enhanced control, enabling quick adjustments without sacrificing power. This level of control, traditionally seen only in OEM systems, is now at the forefront of the aftermarket scene with Emtron’s developments.
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TIME STAMPS:
0:00 - More Power, More Development
0:18 - Sean Ramsdell - Ramsdell Racing
0:33 - Boost Vs Gear
1:21 - Throttle Position Vs Torque
2:17 - EMtron Traction Control
3:12 - What Is Tractive Force?
4:07 - G-Force Data Leverage Vs Power Delivery
4:40 - How The EMtron Modelling Works - Example
7:05 - Throttle Mass Flow Explained
8:00 - Automatic Transmission Example
8:35 - DBW Torque Tuning
9:17 - Torque Cuts/Restrictions
10:15 - Latency Vs Restrictions
11:20 - Tuning Workflow
11:53 - Witchcraft?
13:10 - OEM Tech
13:47 - Thanks Sean!
14:05 - Rob Nguyen FULL SEND
15:37 - BUILD.TUNE.DRIVE
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