Overview
- SRT publicly unveiled the eBoost Air prototype this week, fitting the unit to a Jeep Grand Cherokee test car after moving from concept to a running demonstrator in roughly seven weeks.
- The device is a 48‑volt electric compressor mounted upstream of the Hurricane 3.0‑liter twin‑turbo intake that uses an electronically controlled bypass to route air through the e‑compressor until the exhaust‑driven turbos take over.
- SRT says the compressor can spin up to 90,000 rpm, deliver about 10 psi of boost fast enough to fill roughly 90 percent of available torque at low rpm, and that engineers achieved prototype outputs near 640 horsepower and roughly 600 lb‑ft after calibration and hardware changes.
- The system currently runs only roughly three‑second bursts from a small 48‑volt/1‑amp‑hour battery and then needs about 30 seconds to recharge, leaving energy storage, repeat‑use capability, cooling, packaging, and durability testing unresolved.
- If developed further, the technology could make smaller, turbocharged engines feel more like a V8 in daily driving and might be paired with larger turbos or other Hurricane displacements, but Stellantis has not committed to production timing or vehicle applications.