ANNA — The Anna Engine Plant, Honda’s largest engine plant in the world, began production of an all-new turbocharged 3.0-liter V6 engine that is powering the return of Acura Type S models, officials announced Thursday.
The latest in a line of high performance powertrains built exclusively in Ohio, the new engine debuted in the 2021 Acura TLX Type S, which went on sale this week at Acura dealerships nationwide.
The new 3.0-liter dual overhead cam (DOHC) V6 turbo engine incorporates technologies from the twin-turbo NSX supercar to produce 355 horsepower and 354 lb.-ft. of torque (SAE Net1), making the TLX Type S the best performing Acura sedan ever. The new Type S engine also will power the upcoming 2022 MDX Type S.
Both the TLX and MDX are made exclusively in Ohio.
“The last year has brought unique challenges, but the knowledge and experience of our team here at the Anna Engine Plant never lost sight of our objective, to deliver a high performance engine to power Acura Type S products,” said Rick Riggle, plant manager of the Anna Engine Plant.
“Our entire team understood the importance of this Type S engine to the Acura brand and our associates take great pride in making it for our customers.”
The Anna Engine Plant began engine production in 1985 and has produced more than 28 million engines over the past 35 years. The all-new 3.0-liter Type S Turbo V6 engine is the latest in a long line of high performance engines built at the Anna plant, including the 3.5-liter, twin-turbocharged, V6 engine built exclusively in Ohio that went into production in 2017 for the Acura NSX supercar.
The Anna Engine Plant also builds the engine that powers the most powerful Honda production model ever sold in America — the Civic Type R.
The Anna Engine Plant is the exclusive global production source for the new Type S V6 turbo engine that was developed by some of the company’s most experienced powertrain engineers in Japan and the U.S., including team members who developed the twin-turbo V6 in the Acura NSX.
Marking the start of production of a new V6 engine series, the company’s first all-new V6 engine in a quarter century, and the company’s first mass produced turbocharged V6 engine, represented a major challenge. This led to both new technologies in the engine and the need for new production processes to build it.
Various expansion projects were required to begin production on the plant’s largest assembly line. This included more than 60 pieces of new or highly-modified equipment, the complete overhaul of the V6 engine block machining line, a new sub-assembly line for the turbocharger and a new Valve/DI assembly line.
A new cylinder head design for the new V6 engine platform added complexity in assembly to the efforts of production associates to verify the placement of key parts and achieve the highest quality. Working with key suppliers, the Anna engineering team came up with an original solution to install the valves with the cylinder head fixtured upside down to ensure correct location of the valve assembly parts.
This is the first cylinder head in global Honda that uses this valve assembly process.
During the past year, the COVID-19 pandemic created additional challenges as the all-new engine worked toward mass production.
Prior to COVID-19, a number of engineers and production associates from the Anna Engine Plant spent time in Japan, where development was based, to work on production processes for the new engine. However, travel restrictions related to the pandemic prevented Honda R&D engineers from Japan from coming to the U.S. during a critical stage in the preparation for mass production.
This required Anna Engine Plant associates to take on a larger role in preparing the new Type S engine for mass production during production trials and finalizing new processes.
On several occasions, the team used virtual meeting technologies to enable up to 50 engine designers in Japan to view the trial builds on the floor of the engine plant in Ohio. This helped the engineers understand how the design was impacting production processes, supporting final changes that would ensure the successful launch of production.