This is one of our personal cars here at JTM, and while it’s an ever-evolving project, the progress made to-date is a great example of the consideration, customization, and magnitude of a project we’re able to undertake. This 1975 Datsun 280z originated in Alaska, where dealers knew well enough to thoroughly coat the undersides with rust-inhibiting sealers to protect against harsh winter conditions. After only a few years in Alaska, the car was brought down to Virginia, and remained lovingly maintained and well protected
Our intent with this car was to create a machine equally at home on the street or the track; powerful, reliable, and downright fun. The stock bottom end of the L28 was retained, while a fresh N42 head and high lift camshaft were added. The fuel injection system was replaced with a new set of triple 45mm Weber side draft carburetors. A full MSD ignition was added, along with a header and new twice-pipes exhaust system to let the motor breathe. A suite of other modifications and upgrades were performed in the engine bay, to include the cooling system and other peripherals to complement the new motor demands. The driveline was gutted and replaced with a tighter, lower suspension, and a four-point disc brake kit. A close-ratio 5-speed transmission was added, along with a differential swap, bringing the gears up to a snappier 3.90 ratio.
Suspension and underbody components were coated when apart, all bushings were replaced, the steering rack was rebuilt, and bracing was added to the rear strut towers and within the engine bay to reduce unwanted twisting when this thing gets moving. Bigger wheels and road-hugging tires were required to cover the larger brakes, and the heavy crash bumpers were replaced with lighter fiberglass components modeled after the earlier 240z. The finished product, along with all the otherwise unmentioned electrical and driveline upgrades, successfully met the goal of producing a car viable on the track, but tolerable on the street as well.