An electric compressor could allow the resurrected model to achieve much higher power and better fuel efficiency, while virtually eliminating turbo lag.
Honda is reportedly developing a unique new engine for the oft-rumored S2000 revival.
The company had been considering the Civic Type R's 2.0-liter turbo mill, but an inside source now tells Car and Driver "but by 2018 that would be old news. We need to take things forward."
A report in Japanese magazine Holiday Auto alleges the focus has shifted to a unique two-stage forced induction system, combining a traditional exhaust-driven turbocharger and an electrically-driven compressor. The setup is expected to achieve much higher power output and virtually eliminate turbo lag, while also elevating fuel efficiency.
C&D's source suggests Honda's modern electrified turbo will be used on a longitudinally mounted 2.0-liter inline four-cylinder engine, likely to land north of 320 horsepower -- more than 80 horses above the retired S2000's naturally aspirated inline four.
Previous reports claim the new S2000 will be sized to compete with the fourth-generation Mazda MX-5 Miata, though its new chassis is believed to support larger models such as a production car based on the Acura Precision Concept.
The S2000 is rumored for a 2018 unveiling, coinciding with Honda's 70th birthday.