Ferrari SF90 Stradale Accelerates Through the Gears with Magna's 8-Speed Dual-Clutch Transmission

The new Magna 8DCL900 dual-clutch gearbox is lighter and smaller than the old 7-speed in the Ferrari 488 Pista.

Dan Carney, Senior Editor

May 20, 2020

3 Min Read
Ferrari SF90 Stradale Accelerates Through the Gears with Magna's 8-Speed Dual-Clutch Transmission

 

Ferrari partnered with Magna for the new 8-speed dual-clutch transmission (DCT) in the incredible hybrid-electric Ferrari SF90 Stradale super sports car. (See our DCT explainer HERE)

Compared to the 7-speed Magna 7DCL750 transmission in the previous 488 Pista, the SF90’s 8DCL900 includes an additional forward gear and boosts torque capacity by 20 percent, from 553 lb.-ft. (or 750 Newton-meters, referred to in the unit’s name) to 664 lb.-ft. (or 900 Nm). It is also lighter, as the engineering team whittled away 15.4 lbs. of weight from the transmission.

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Magna 8DCL900 dual-clutch transmission. Image source: Magna

The SF-90’s hybrid-electic drive system on the car’s front wheels provides reverse, so in this application of the 8DCL900, the reverse gear is also eliminated, boosting weight savings to 22 lbs., bringing the total to 305.3 lbs. (138.5 kg). The additional forward gear contributes to a wider spread of ratios, which helps improve the SF-90’s fuel efficiency, too.

“This transmission sets a new benchmark for super sport applications,” said Jörg Gindele, senior engineering director at Magna Powertrain. “It comes with all attributes necessary for outstanding driving performance in urban traffic as well as on racetracks.

The 8DCL900’s dual wet clutches are 20 percent smaller in diameter than those on the 7DCL750’s. Combined with a switch to a dry sump oil system, the new gearbox sits 0.6 inches (15 mm) lower in the car, contributing to a lower center of gravity, for still better handling. The smaller clutch pack is also quicker-acting, with total clutch fill time on gearchanges shaved from 300 milliseconds in the 488 Pista to 200 ms in the SF90 Stradale, according to Ferrari.

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Ferrari SF90 Stradale. Image source: Ferrari

The 7DCL750 is used in other Ferrari models as well as Mercedes-AMG cars and Ford’s flagship GT sports car. The shared component is somewhat ironic, considering the company’s famous racing rivalry between these cars’ predecessors depicted in last year’s hit film, Ford v. Ferrari

The Ford GT and Ferrari 488 competed directly against each other in the 24 Hours of Le Mans and other endurance sports car races in recent years employing this shared gearbox. Magna says that the 8DCL800 will of course also be used in additional vehicles, but the company says it is too early to reveal those applications.

 

Magna touts the benefits of optimizing dual-clutch transmission technology in exotic supercars because the know-how can be applied to more affordable mainstream models to help them be more efficient. “Magna’s DCT powertrain technologies provide a route to energy-efficient, modern mobility by combining lightweight, fuel-efficient technologies with cutting-edge engineering and manufacturing processes,” stated Magna’s press release. 

Ford notably pushed for use of DCTs in inexpensive cars, but its unreliable Getrag-supplied PowerShift DCT automated transmission has been the subject of recalls and lawsuits, so continued development of the technology for lower-powered, lower-cost applications should help a future OEM avoid the same fate in cost-sensitive vehicles.

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Dan Carney is a Design News senior editor, covering automotive technology, engineering and design, especially emerging electric vehicle and autonomous technologies.

About the Author

Dan Carney

Senior Editor, Design News

Dan’s coverage of the auto industry over three decades has taken him to the racetracks, automotive engineering centers, vehicle simulators, wind tunnels, and crash-test labs of the world.

A member of the North American Car, Truck, and Utility of the Year jury, Dan also contributes car reviews to Popular Science magazine, serves on the International Engine of the Year jury, and has judged the collegiate Formula SAE competition.

Dan is a winner of the International Motor Press Association's Ken Purdy Award for automotive writing, as well as the National Motorsports Press Association's award for magazine writing and the Washington Automotive Press Association's Golden Quill award.

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He has held a Sports Car Club of America racing license since 1991, is an SCCA National race winner, two-time SCCA Runoffs competitor in Formula F, and an Old Dominion Region Driver of the Year award winner. Co-drove a Ford Focus 1.0-liter EcoBoost to 16 Federation Internationale de l’Automobile-accredited world speed records over distances from just under 1km to over 4,104km at the CERAM test circuit in Mortefontaine, France.

He was also a longtime contributor to the Society of Automotive Engineers' Automotive Engineering International magazine.

He specializes in analyzing technical developments, particularly in the areas of motorsports, efficiency, and safety.

He has been published in The New York Times, NBC News, Motor Trend, Popular Mechanics, The Washington Post, Hagerty, AutoTrader.com, Maxim, RaceCar Engineering, AutoWeek, Virginia Living, and others.

Dan has authored books on the Honda S2000 and Dodge Viper sports cars and contributed automotive content to the consumer finance book, Fight For Your Money.

He is a member and past president of the Washington Automotive Press Association and is a member of the Society of Automotive Engineers

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