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SPI Performance Consultant
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From the Switzer news blog:



The car you see here is called "Goliath", and - as of last weekend's Moscow Unlimited Standing Mile event - it is the world's fastest GTR Nissan.

The Goliath project began late last year as an R1K-X - an extremely potent, but relatively normal build from Oberlin Ohio's Switzer Performance. The shop has built a reputation on delivering reliable, record-breaking cars- this one, like Switzer's other high-horsepower record-runners, was expected to deliver some 1500 bulletproof horsepower to a demanding Russian client. By Switzer's standards, it was a conservative build … that is, until the client decided to ask Tym, "What if I want to push the limits? What if I don't want to be conservative?"

The World's Fastest GTR


"It still amazes me," says Tym Switzer, talking to me at the Feve, a local restaurant where the Switzer boys are regulars. "The cars are making over a thousand horsepower, and we're nowhere near the edge. That's- I mean, when we started doing this in the 90s, a 1000 hp streetcar was unheard of. Now? 1500 hp and people want more- they think they do, anyway, but very few people really know what 'pushing the envelope' means anymore. I spoke to the client, explained the risks and our policy of testing the limits of a package on our dime, not the customers'. We went back and forth and he ended up convincing us to move forward. Goliath became an exercise in tuning with the new Syvecs ECU. The other component to this exercise was to see how much power we could make on our engine program's standard-bore/stroke 3.8L VR38 build that's been so reliable for us over the past four, almost five years, now."

The car was built, the dyno was abused, street tuning was quality-tested, and the car was sent to the client in Russia. Its first time out, running on a damp track with a slipping clutch, the car ripped past the speed traps a mile from the starting line at an impressive 225 mph after just 22.7 seconds.

"That was a good start," said Tym Switzer, on the day. "We're in good shape to meet our customer's goals on raceday."

When raceday finally came, the car was expected to run well- but wasn't a favorite to win, which (on the surface) seems understandable. "It's important to realize," explains Tym, "this is still a 4000 lb. streetcar with a full interior, AC, stereo - it even has the stock seats. It's a real, drivable streetcar, albeit at the limits of what most people would tolerate. The only 'race stuff' in the car is the fuel. In this case, it's Q16. I'd have preferred to tune with something a little more 'green', like E85, but that would have been too hard for the car's owner to source locally."

Despite the car's weight "handicap", when the lights turned and the car's Switzer-built VR38 started putting power to the ground through the Toyo R888 tires, the car rocketed across the Moscow Unlimited's mile-long dragstrip at more than 250 mph! A new GTR record!



Much of this must be attributed to the powertrain management employed on the project. "Keep in mind", says Tym, "that this is an 1800hp car in the hands of a non-professional driver. We have always tried to maximize performance while giving our customers the most predictable and controllable combinations possible. It's not just about making the most power, there are plenty of those who can make good power." This couldn't be more evident than it is in the video from the event. "If you look at the 'other' closest GTR competitor, it's quite easy to see how stable our car is in comparison. The 'other' car is literally all over its lane at the beginning of its runs in order to maximize its time - if all goes well. That's a little more dangerous than we care to be, so you will notice that even though we sacrificed our ET in the interest of stability, the car accelerated straight and true even though it clearly had the horsepower advantage at the top of the course." The Syvecs Engine Management makes all of that control possible on Switzer's big power builds. "With the Syvecs SGTR system, we are able to manage all dynamics of the vehicle to our best advantage. We don't have a rev-n-dump launch control, we have launch management."

By the day's end, Goliath had made four nearly flawless runs- each one at more than 245 mph. "We need to look at another round of clutch upgrades," says Tym, always a perfectionist. "Still, having the world's fastest GTR is what the client wanted. It was a good day."

You can get a better sense of Goliath's big day out in the time slip posted here, and the image gallery, below.



 

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Very nice result. I hear the car was running at 75-80% max boost with a slipping clutch. If so I can't wait to see this car break into the 21's soon
 

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This car is absolutley amazing. Congrats on such a great build.

I wonder what kind of numbers the 1760 whp car will show... Do you have any test results yet?
 

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This is just awesome. A lot of people throw around the word awesome but this really is awe inspiring.
 

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One observation is that I would tout your launch management if it was leaving "straight and true" and running a good 60' but with basically a 2.0 60' you are leaving slower than a stock car on run flats.
 

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Congratulations to Switzer on this great achievement. A 1800 HP GT-R is a true "Goliath" GTR.

We are also pleased to see that the Ecutek powered transmission control module worked in perfect harmony with the Syvecs engine control module to deliver such a world beating GT-R. Well done from all of us at EcuTek.
 

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Way to represent Switzer! Congrats to you and the owner!
 

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An obvious statement if you put a pro behind the wheel, and turn down the TCM to get out faster it would be better and i guess that will happen in time,

also I dont think you can knock the other car for getting out faster and moving around a little
 

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wow. this is freakinbombastic. stock gear ratios? congrats to all that made it possible.
 

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One observation is that I would tout your launch management if it was leaving "straight and true" and running a good 60' but with basically a 2.0 60' you are leaving slower than a stock car on run flats.
This 250mph pass was the important one to shout as its a big achievement to hit with the GTR, but with this run it was still in the stages of dialing in the power management in the lower gears, so i left the launch soft as to be honest i didn't want to have the car unsettled too much until it would run clean in 2nd gear+.. Will pop a trace up showing the Lateral G later when in Office to show just how much the car was moving around!

Once i had the power management sorted after 1st gear, i sorted the Launch... The run after it did a 1.78 60ft and went 22.2 ET and run after that a 1.63 60ft but then a boost pipe went in the 1st - 2nd gear change. As the 60ft came down the mile speed reduces by 2mph naturally so it wasn't shouted about.

Some would say i maybe should have hit it hard on the launch on every run but if the Launch is too much it will unsettle the car and in a cold damp track like it was earlier in the event with drivers who have balls of steel i feared something bad might happened like i witnessed with MedUsa that crashed in Mile testing just after i had got out of it.

Ryan
 

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Congratulations to Switzer on this great achievement. A 1800 HP GT-R is a true "Goliath" GTR.

We are also pleased to see that the Ecutek powered transmission control module worked in perfect harmony with the Syvecs engine control module to deliver such a world beating GT-R. Well done from all of us at EcuTek.
It indeed does! The TCM Tables and logging available now is so powerful.

Great job
 
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