EN07D
Production History
- Subaru R1 S (JA chassis) - 2005-2007
- Subaru R1 S (JB chassis) - 2008-2010
- Subaru R1 Aero, Limited (JA/JB chassis) - 2005-2010
Known Failures
- Oil consumption - piston ring wear increases oil use after 60k miles on high-mileage grey imports.
- Timing chain tensioner wear - cold start rattle on units exceeding 70k miles without proper maintenance.
- VVT solenoid wear - causes rough idle and warning lights on higher-mileage Japanese imports.
Specs
Petrol · 0.66L · 54hp · Naturally Aspirated
Replacement Cost
Typical UK rebuilt engine: £1,400-£2,200 (supply only) Estimated from comparable EN07 units - actual quotes may vary.


