|John Shepherd's Nissan GT-R|
One of the first specialists to respond to this need was John Shepherd of Shepherd Transmissions, Inc. A long-time fan of AWD performance, Shepherd embraced the GR6 and studied the factory’s improvements year-to-year. “Many early problems were blown out of proportion,” Shepherd admits. “The most common problem is the weak first gear. Other common issues include circlip failures, piston seals, damaged selector pistons and synchro sleeve failures. Today, we have solutions for all of these issues.”
With only 180 miles on the odometer, Shepherd wasted little time getting the V6 engine into the Shepherd Transmissions workshop. Its cylinder heads took a trip to Head Games to receive port work and a complete Ferrea valvetrain. When the finished heads returned, ARP head studs secured them to a newly fortified VR38 block. The engine now features a balanced crank, courtesy of Canton Automotive Machine, Carrillo connecting rods and AMS-spec JE Pistons. AMS-spec Kelford camshafts actuate the valvetrain providing improved lift and duration.If you haven't ever seen John's Talon, check out the video below. 7.70 @ 191 mph, and manually rowing the gears.
For more on this article and everything else in Issue 122, get your DSPORT Magazine Back Issues online here!