Update: The modified Nissan GT-R that recently set a record for the fastest street-legal GT-R over the quarter mile was incorrectly reported as being built by Switzer Performance. The car was actually built by ShepTrans, though it was equipped with some of Switzer’s components.
Despite this Nissan GT-R looking completely normal on the outside, it is actually the world’s fastest, street-legal version of the iconic Japanese sports car over the quarter mile. As the video above shows, it needs just 8.61 seconds to cover the quarter mile and amazingly it also reaches a 170.47-mph trap speed in the process.
This is no ordinary GT-R, however. It’s a highly modified version built by America’s own ShepTrans, based in North Lawrence, Ohio. Among its many upgrades are a beefed up drivetrain, a specialty of the tuning shop that built it.
The list of modifications are many, but some of the key items are a Titan Stroker kit, used to increase displacement from a stock 3.8 liters to 4.1 liters; an upgraded dual-clutch gearbox built using Sheptrans’ own Stage 4 kit; and an AMS turbocharger upgrade with custom piping and intercoolers.
To ensure enough fuel is fed to this beast, parts from fellow Ohio tuner Switzer Performance were also installed. These include a new intake system; high-flow fuel injectors; and a piggyback ECU from Switzer partner Syvecs. The latter is a particularly brilliant unit that allows the car’s boost and traction control to be adjusted via wheel speed sensors, throttle position sensors, GPS and more.
To get the weight down, a lithium-ion battery was used instead of the stock unit, and the passenger seat removed. The latter also made it easier to access the Syvecs ECU for quick changes during testing.
The end result is around 1,300 horsepower, with the ability to run on E85 fuel. The tires are street-legal Mickey Thompson drag radials, making this a street-legal run.
Any existing GT-R owners keen to upgrade their own cars with some of these modifications should contact ShepTrans.
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