Autocar Magazine: Unveiling the Mechanics Behind 4WD Technology
If you’re a fan of automotive history and innovation, then you’ll be thrilled to know that the complete Autocar archive is now available at themagazineshop.com. This treasure trove of information delves into the world of 4WD technology, showcasing the work of renowned names such as Cosworth, BRM, Lotus, Matra, McLaren, and Ferrari. While most manufacturers integrated Ferguson’s proven system into their existing chassis, Northampton took a unique approach to developing their own 4WD system.
One of the key features highlighted in our report is the intricate mechanics behind the 4WD layout. The drive is taken from the engine, which is positioned with the flywheel end forward, and is then transmitted to a two-shaft gearbox equipped with Hewland gears, offering a wide range of gear ratios. An additional gear, mounted on the end of the second motion shaft, redirects the drive sideways to an angled bevel differential, which then distributes power to the front and rear final drives. The torque-split ratio is estimated to be around 40:60 front to rear, with the flexibility for further adjustments by varying the front and rear wheel diameters.
What sets Northampton’s 4WD system apart is its layout, which positions the fore-and-aft drive lines on the right-hand side of the car. This unique design eliminates the need for an idler wheel between the gearbox and the center differential, a component required in other 4WD designs to match the rotation of the engine and transmission. By streamlining the layout in this manner, Northampton has achieved a more efficient and compact 4WD system.
The technical drawing accompanying our report provides a visual representation of the intricate mechanics at play in Northampton’s 4WD system. From the arrangement of drive lines to the placement of gears and differentials, every component is meticulously designed to optimize performance and handling.
In conclusion, the development of 4WD technology has been a collaborative effort among some of the most prestigious names in the automotive industry. With each manufacturer bringing their unique approach and expertise to the table, we are witnessing a new era of innovation and advancement in the world of automotive engineering. Stay tuned for more updates and insights from the Autocar archive, available exclusively at themagazineshop.com.
