Is This Tuning Risky Business?

If you’ve ever considered an EV conversion but weren’t sure where to start, Ryan from ‪RyWire‬ takes us through the technical details of his incredible Honda Civic EK EV swap, showcasing the integration of Tesla drive units, AEM Electronics VCU, and CSF Radiators for cutting-edge performance and thermal management.

This lightweight (EV comparative) build features a $1,000 Tesla front drive unit and a $2,200 rear drive unit, delivering 300hp (each!) with infinite tunability thanks to a Cascadia Motion logic board. Ryan explains why switching from Tesla’s OEM controls to standalone AEM strategies unlocks full control over torque split, regen tuning, and thermal strategies—key elements in achieving high performance and reliability.

Thermal management is a standout feature, utilizing CSF radiators, Freon-based heat exchangers, and a multi-directional cooling system to optimize temperatures for the motor, charger, and 400V battery pack. With insights from OEM designs, Ryan has implemented a system that ensures the batteries stay in their optimal temperature range, boosting efficiency and performance.

Whether you’re interested in OEM vs. aftermarket motors, Bosch brake boosters, or regen tuning with paddle shifters, this build is a masterclass in EV conversions. With a range of up to 400 miles and a weight of approximately 3,400 lbs, this Civic is a lightweight powerhouse that sets a new benchmark for EV swaps.

By the end of this interview you should understand that EV tuning is as risky as tuning your ICE powered projects, and without a high level of care for any project you undertake, you can potentially damage expensive components.

BUILD. TUNE. DRIVE.
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TIME STAMPS:
0:00 - RyWire Honda EV Conversion
0:20 - Why EV Swap?
0:36 - Parallel Hybrid Inspiration
1:21 - EV Project Options
1:28 - OEM Swap/Conversion
1:38 - Aftermarket Conversion
1:58 - Tesla Conversion Advantages
2:32 - EV Conversion Restrictions
2:50 - Aftermarket Electronics
3:10 - Ditching Tesla Controller
3:59 - Is DIY EV Tuning Dangerous?
4:35 - AEM Starting Base Maps
5:10 - ICE Tuning Comparison
5:28 - Bosch Electromechanical Brake Booster
6:19 - Not Just EV Applications
6:25 - Regen Tuning
6:38 - Paddle Shifted Regen
6:51 - Regen Aggressiveness
7:39 - Fabrication & Axles
8:03 - $1,000 Front Tesla Drive Unit
8:40 - $2,200 Rear Tesla Drive Unit
8:46 - Internally The Same
9:02 - Torque Split Simplicity
9:44 - Infinite Tunablity
10:00 - Traction Control
10:18 - Just Getting Started
10:35 - 400V Battery Sizing
11:32 - kW Vs Volts - Range Vs Power
12:18 - Weight (approx)
12:41 - Range (approx)
12:58 - Battery Packaging & Hindsight
13:41 - EV Cooling System
15:00 - Battery Temperature vs Power
15:31 - Thanks Ryan!
15:50 - http://www.rywire.com
16:00 - BUILD.TUNE.DRIVE