GTR R34 Z-Tune Review & Specs – Peter Lyon, EVO
Nissan Skyline GT-R R34 Z-Tune
Road test of the Nissan Skyline GT-R R34 Z-Tune by Peter Lyon for EVO Magazine back in 2005.
The R34 Z-Tune GT-R was only available in the Japanese Domestic Market (JDM) and only 20 examples were built.
Nissan Skyline GT-R – Background
Nissan never intended for the Nissan Skyline to reach the cult status it has among the world’s car enthusiasts. The Skyline was built with one aim and one aim only: to win the Japanese Touring Car Championship, which it did regularly. Not only did it dominate in Japan, but the Skyline also dominated the Australian Touring Car Championship until it was banned.
The monumental success of the Skyline on the race track against its road going competitors catapulted the Skyline into the public eye and all of a sudden, everybody wanted one.
The road going version of the Skyline didn’t disappoint, it was a tour de force in handling, balance and in later models technology. The gentleman’s agreement in Japan to limit power outputs to 276hp was just what the aftermarket tuners were looking for. A whole tuning industry grew around the Skyline from performance part manufacturers to specialist Nissan Skyline tuners all of which had the same goal, to push the boundaries of the car and see what it was truly capable of. Everybody who drove the car agreed that the chassis was more than capable of harnessing more horsepower and there are thousands of examples pushing out in excess of 400hp with some touching the magic figure of 1000hp.
18 months after the Skyline GT-R finished production NISMO (Nissan’s motorsport arm) had one more crack at the Skyline GT-R to turn it into the ultimate road going factory built edition of this legendary car.
The first problem they encountered was that they had no spare body shells, instead they had to look for used examples with a view to stripping them down and rebuilding the car into the Grande Finale that is the R34 Z-Tune. The criteria for these used examples? Under 30,000km on the clock with no panel damage whatsoever.
To build a Skyline GT-R that would stand up to a 30 minute all-out-attack track session and not blink an eye lid. The result of NISMO’s speed crazed fascination and motorsport know-how is the GT-R R34 Z Tune.
The RB26 engine has been fully rebuilt to produce 500 rampant horses, this was achieved by boring the engine out 2.8litres and packing its insides with the same internals found on the Japanese Touring Car Championship winning car. The exhaust has even been tuned to slide past the strictest noise limits enforced at the track. NISMO say the engine is well capable of producing over 600 bhp but emissions regulations limited their ambitions.
The Aero Package
Every addition on the Skyline GT-R’s bodywork is designed to be light and to increase the already high performance capabilities of the standard car.
From 4000rpm onwards, the car gives the driver the feeling of having super human abilities, you are the man and nothing has the power to pass you. Dump the clutch from a standstill with 5500rpm on the tach and your going to experience 1.5G of acceleration, it’s like skydiving with a rocket pack. When you want to come to a stop, you better be prepared for vision destroying deceleration, your peripheral vision turns into a blur as your mind struggles to adjust to the massive braking capabilities under your control.
This dimension changing braking power is not only down to the family-pizza sized brake discs but also to the tyres, Bridgestone’s RE01Rs and used, but in honesty even these tyres, as good as they are, struggle to contain to massive braking power available, the constant chirping as they lose and regain traction is a constant reminder that the braking power is limited by the tyre and not the brakes themselves. As highly regarded as the RE-01R tyre is in Japan, to truly enter another dimension you need the Bridgestone Potenza RE55S semi slicks, with this combination you are not only ready to enter a new more colourful world of Playstation like driving but other drivers will be struggling to understand your god like driving abilities
The mid altering braking abilities are matched by the cornering limits, the phrase "corners like it's on rails" is bandied about a lot, and is used to refer to high performance road cars, instead, for the Z-Tune, the phrase "re-writes the rule book" is more appropriate. It moves your comprehension of "glued to the road" to whole other level. It's simply not fair to other road users to exploit this car to it's maximum abilities on the public highway. People will simply not be ready to understand the speed you'll be travelling at. Contributing to this scalextric cornering are Sachs 3 way adjustabledampers, which, at 10 grand a set give all the performance you would expect from their heavy price tag.
To complete the feel good factor NISMO have used a Super Coppermix clutch which handles the power without complaint while at the same time being almost stock in it's ease of operation. The interior is not overlooked with Alcantara covered seats, which are suitably clamp-like to cope with forces exerted on your body when maxing out this monster. They are joined by a 199mph speedo and titanium gear knob to complete the transformation. The R34 Skyline may be dead but its certainly not forgotten thanks, in part, to this final, top of the line in all respects, Nissan Skyline GT-R Z-Tune.
R34 Z-Tune Specs
Vehicle Weight: 1600kg
Tsukuba Lap Time: 1.01.15 Seconds
Straight Six, 2770cc, Twin Turbo
Max Power: 500bhp @ 6800rpm
Max Torque: 398lbs/ft @ 5200rpm
Top Speed: 180mph Estimated
Price: 86,740 pounds
Only 20 examples being built.
6 Piston Monoblock Calipers Brembo
2 Piece 365mm Discs KIRIU
Sachs Z-Tune Custom
Springs: 14kg/mm Front and Rear
IHI Ball Bearing Turbos
Z2 Special Profile Camshafts
Z2 Special Forging Pistons
Rods GT500 Spec
Crank GT500 Spec
Block GT500 Spec
Weldina NE1 Titanium Exhaust System
Z-Tune Transmission and Diff Cooler
Dry Carbon Reinforced Strut Towers
Dry Carbon Floor Front
Dry Carbon Reinforced Trunk
Z-Tune Dry Carbon Hood
Z-Tune Dry Carbon Fender Flares +15mm Wider
Z-Tune Dry Carbon Diffuser with 2.2 times more downforce than normal GTR
Dry Carbon Spoiler Flap
Carbon Prop Shaft 7.26kg vs 12.52kg for Stock
Z-Tune Leather and Alcantara Seats
Nissan Skyline Owners Club UK
Skylines Down Under
High Performance Car Insurance Brokers Specialising in Modified and Grey Import Vehicles
This article is based on one which appeared in EVO Magazine June 2005.
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