ShepTrans’ owner John Shepherd was behind the wheel of his high-horsepower GTR yesterday, when he set a new GTR 1/4 mile record: an ET of 8.61 with a trap speed in excess of 170 mph!

Shepherd’s record run didn’t just come down to his Nissan GTR’s exotic drivetrain, however – it was also a matter of software. ”We didn’t intend to set records,” explains Tym Switzer, head of Syvecs North America and its parent company, Switzer Performance. ”We headed out to the track with John’s car and another customer’s Ultimate Street Edition GTR to test some of the new strategies we’ve been developing on our Syvecs GTR ECU package for the Nissan R35 GTR. We didn’t think we’d be gunning for records and certainly didn’t think we’d be making any headlines – we didn’t even bring a camera! Everything just started clicking and we came home with a new GTR record on Shep’s car, and a new fast time validation run for one of our USE cars, which ran a 9.67 at 149 mph, amazingly, on 93 octane pump fuel.”

The Syvecs SGTR ECU is a direct replacement for the factory engine management system in the R35 GTR, and is fully compatible with every other system in the car, from the customizable displays to the transmission and traction-control units. ”Even the cruise control works,” says Tym. ”It’s a fully integrated solution that ties everything together. On John’s car, the Syvecs ecu served to tie together a fully-built ShepTrans driveline, an AMS turbo kit, and our Switzer/Syvecs dual-injection fuel system, as well as quite a few other vendor-supplied components to help get the job done. Without the Syvecs’ sophistication and the tuning resolution it allowed us, along with features like full flex-fuel capability and the ability to adjust boost and traction control with live data from the wheel speed sensors, throttle position sensors, GPS, and more, this car would run like any other Frankencar. The car was well-prepared by John’s guys, and Boyan Radomirov (Switzer Performance/Syvecs North America’s lead tuner) deserved a great deal of the credit for the effort, as he was on hand to help John dial the car in and has spent hundreds of hours gathering data and working behind the scenes with the rest of the Syvecs team to make sure our software updates effectively improve both performance and drivability. John too, obviously – his transmission stayed together under a ton of abuse, and he put in a great drive to get that 1/4 mile record time drive at 8.61!”

You can learn more about the Syvecs S8 “plug n’ play” engine management system for the Nissan GTR at Syvecs — Powertrain Control. Contact Switzer Performance for pricing and availability.

 

Amazing!

 

Let the war begin.

 

I guess soon..!

 

I'm guessing those are you order street tires. They seem either slicks or drag tires.

 

DOT approved drag slicks. I have a bit of seat time in one of these with that tire combination and I have no complaints on it for street driving. Just watch out for rain, though.

 

Well I guess for that amount of power, slicks is the way to go.

 

Wow.. Very nice, congrats..

 

crazy fast!

 

god look at that speed awesome awesome like million times