This summer, Yasa achieved 550kW (738bhp) from a 13.1kg version of its axial flux prototype motor, equating to an unofficial power density world record of 42kW/kg. The testing of a lighter 12.7kg version has significantly exceeded this – 750kW (>1,000bhp) short-term peak rating. As a result, the electric motor set an unofficial power density world record of 59kW/kg – a 40% increase on initial testing. Yasa has estimated that its continuous power will be in the region of 350-400kW (469-536bhp).
“On behalf of the entire Yasa team, I’m proud and excited to so quickly follow up on the already remarkable results of our initial testing with this incredible result,” said Tim Woolmer, founder and CTO of Yasa. “To achieve a 750kW short-term peak rating and a density of 59kW/kg is a major validation of our next-generation axial flux technology. It’s proof of what focused engineering innovation can achieve. And this isn’t a concept on a screen — it’s running, right now, on the dynos. We’ve built an electric motor that’s significantly more power-dense than anything before it – all with scalable materials and processes. This motor will bring game-changing technology to the high-performance automotive sector.”