Homologation team Walkinshaw TWG is optimistic its ‘B-spec’ engine will solve the reliability woes that have peppered Toyota’s maiden Supercars season. Walkinshaw TWG and UK-based engine partner Swindon Powertrains have delivered updated valvetrain components in the lead-up to the all-important Bathurst 1000. The first updated engine was completed in time for ride day duties in Perth on Monday before the full day of testing on The Bend’s West Circuit. “We’re really happy to have ticked off 520km with no issues,” Walkinshaw TWG team principal Carl Faux told Speedcafe at The Bend. Faux hopes to have two updated engines – one each for Walkinshaw TWG and customer Brad Jones Racing – in action at Ipswich.