Acura wins IMSA title using same engine tech that’s on dealership lots
As the checkered flag waived over Michelin Raceway Road Atlanta last week, Acura took five five titles in the International Motorsports Racing Association (IMSA) sports car competition series. Unlike cars in Formula 1 and NASCAR racing, which mostly utilize specialty parts, Acura took the titles using variants of same six-cylinder engine that is available in most of its vehicles that are currently for sale at dealership lots nationwide.
In the GTD division, Meyer Shank Racing claimed the Drivers' and Teams' Championships with the Acura NSX GT-3 Evo. It shares 80 percent of its parts with the traditional NSX and is powered by the same mid-mounted twin-turbocharged, 3.5-liter V6, in basic terms.
The NSX GT-3 race car shares 80 percent of its parts with the traditional NSX.Photo courtesy of Acura
Though there are many different engines in Acura's lineup, at its heart is the 3.5-liter V6. The engine has been through many different forms as part of the automaker's standard and available powertrain options since 1996 when the J-Series of engines was introduced to replace the C-Series. It's been in sales winners such as the Acura RDX and some losers including the Acura ZDX.
Honda's Anna Engine Plant, in Ohio, has crafted the GT-3 Evo's engine using the same design specification as the current road version of the NSX, including the block, heads, valve train, crankshafts, pistons and dry-sump lubrication system.
Unlike its road-worthy counterpart, the model is limited to rear-wheel drive (the road car is all-wheel drive) and isn't a hybrid, per IMSA requirements.
Its chassis originates at the Honda Performance Manufacturing Center in Marysville, Ohio (same as the NSX road car) and final assembly is completed by JAS Motorsport in Milan, Italy.
It is 1,000 pounds lighter and has 500 percent more downforce thanks to its Evo body kit. A video released this summer shows the NSX and NSX GT-3 Evo racing around the Mid-Ohio Sports Car Course where the GT-3 Evo won by just about nine seconds.