Finally seeing some good results from all the recent upgrades. Recently participated in the first round of my local MX-5 club motorsport championship. The round was held at the Wanneroo raceway motorsport circuit at night in a point to point sprint format. System pressure control setpoint was dialled in at 8 psi. This is not the style of event I expected the car to have much competitive advantage as it would be relatively easy to keep a conventional turbocharged engine on boost around this circuit, however the car was surprisingly competitive winning its class and recording 3rd fastest time outright. The two cars that ran faster times were both LS V8 powered MX-5s running on R-compound tyres.
This was a good stress test for the system as there was long periods of wide-open throttle at high engine load, and running to redline in 4th gear on the straight. Multiply back to back runs were completed with all system temperatures well with in desired tolerances. At 8 psi boost pressure at redline in 4th gear each of the electronic speed controller is consuming 15kW of electric power for a combined consumption of 30kW. ESC input current is 250A (500A combined) with the electric motor winding current of 400A each.
Below is a video of the fastest run of the night.