I keep hearing that the extreme side of the Japanese aftermarket-tuning scene is quickly becoming a thing of the past. I was beginning to think this was the case until I made the trek down to Osaka in the Kansai region of the country. It is amazing how much difference a few hundred kilometers can make in Japan, while most cities look pretty much exactly the same it is the people and their attitudes that change completely. People in Kansai are very open, friendly, always willing to chat no matter where you go. This general attitude reflects greatly on their cars, with tuning and customizing being far more diffused than in the north. With this chilled out atmosphere also being shared by the police, which seems far more passive than up in Tokyo, it isn't surprising that people and of course shops, take advantage. Final Motion, situated in the heart of Osaka city, is a place we have been meaning to visit for a while, and in particular take a look at some of the cars they build. The crazy R34 Skyline GT-R you see here was built for a customer, who can be often seen blasting around Central Circuit as well as the streets of the city!
As Morita-san of Final Motion explains, "people from Kansai have this inner urge to show off." Be it with their appearance, clothes and of course cars, they are always in search of a reaction from others around them. To him, this is the main reason why tuning is as big as it is in this corner of Japan, and Final Motion has made a name for itself as a builder of some of the most extreme cars around. In an attempt to differentiate themselves from other tuning shops they have been working with a slightly heavier, but stronger, kind of composite material for their body parts. Looking at the front end of the Skyline GT-R in these pages, most of you will already know we are referring to carbon-Kevlar, instantly recognizable thanks to its yellow and black weave. With pretty much everyone out there using carbon these days, this GT-R dares to differ, going with a slightly different look to make Final Motion's cars stand out, even from the instantly recognizable.
The owner wanted to create the most extreme R34 out there, which on top of some serious fettling under the hood would be backed up by an aggressive look. The front bumper has been shaped around a NISMO Z-tune item, a part that boasts one of the most recognizable designs out there not to mention being functional in the aerodynamics department. No changes were made to the design, except the addition of two square intakes in the center section, which help provide air to the top part of the intercooler. The stock Spec-V front diffuser remains, helping suck the car down to the ground when traveling at high speeds. A NISMO Z-tune bumper wouldn't have the same effect if it wasn't joined by the slightly wider and extended Z-tune front fenders, again created out of strong carbon-Kevlar. The Final Motion carbon-Kevlar aero hood completes the "yellow" conversion up front giving the R34 a very unique look. But it doesn't end there! Both the side and rear skirts, again based on NISMO parts, have been recreated in carbon-Kevlar helping tie in the profile of the car with the front section. Final Motion then added skirt extenders, which not only help smooth airflow along the sides of the car but also does wonders for stance giving a wider appearance to the GT-R's contours.
Since people in Osaka can get away with pretty much anything, the owner requested that the wastegate screamer pipe exit on the side of the car, right through the side skirts! At the rear it's the carbon GT-Wing that dominates things, sitting on tall center-mounted billet aluminum wing stays. This has to be one of the most extreme rear wings on the market and thanks to its height and adjustability can create tons of downforce, just what you need when driving around fast circuits like Central. To further help stabilize the wing, adjustable rose-jointed rods have been added to the sides, making the R34 look more like a race car than a street car. Adjustable Quantum dampers allow the 18-inch NISMO LM GT4 wheels to fill up the wheel arches effectively. The white 10.5J wide rims are shod with sticky Yokohama Advan A048 rubber, which as the owner explains, are perfect even for the street when blasting around the Kanjo at night, Osaka's C1 equivalent where, like in Tokyo, street racers do their thing late at night! With the looks department truly taken care of, it was on to the mechanicals.
Morita-san received a simple request from the owner; to develop at least 600ps with usable and responsive mid-range, as the car would still need to be used on the street when not having fun at the track. Morita knew that a larger single turbo like a Trust T78 or T88 would be too extreme for his customer's requests but he also wanted to steer clear from a twin turbo set up. Externally gated single turbochargers inject tons of character to an RB26DETT thanks to their dramatic spool-up noises, not to mention the barking sounds of the wastegate, so he decided to use the smaller TD07S-25G turbo from Trust. This was fitted to the RB26 via a Final Motion exhaust manifold and controlled by the Trust external wastegate, which dumps gasses out the side of the car via the custom titanium screamer pipe we saw peeking through the side skirts! The Final Motion front pipe connects up to the straight-through titanium exhaust, which has no signs of a catalyst or any sub silencers.
To prepare the engine for the higher boost level the TD07S would supply, Tomei H-section connecting rods were fitted to Tomei forged pistons; then the engine was then completed with Tomei Poncams and a Tomei metal head gasket. When lifting the lightweight carbon-Kevlar hood, one of the first things that stands out has to be the hand-welded titanium intake pipe, connecting the Blitz cone filter to the TD07S turbine. The large core GReddy intercooler has been fitted with a water-spray system, which can be actuated manually or set on automatic, spraying a fine mist of water onto the core when intake temperatures get high. And on the subject of cooling, Final Motion fitted their side-flow radiator and aluminum overflow tank, a great set-up for cars that are often thrashed on track. A Trust oil cooler has been positioned on the driver-side of the bumper, perfect for getting a constant flow of air helping it do its job efficiently. Final Motion mapped the car on the highway using an A'PEXi Power FC ECU, tuning the fuel and ignition maps to get the most power out of the engine. The fueling system was upgraded with SARD 720 cc/min injectors, fed by an in-tank SARD fuel pump, supplying enough high octane gas to develop 620 PS. The broad torque curve starts making itself felt from as low as 3,500 rpm before peaking at 5,200 rpm with a massive 62 kgm. To handle all the twists, ATS supplied their twin plate carbon clutch, an item rated to 700 ps. The rear LSD was upgraded with another ATS carbon piece, helping the R34 put all that power down to the road efficiently.
Since this R34 GT-R is primarily used on track, the owner had Final Motion rip out the rear seats as well as the floor and transmission tunnel carpeting for that extreme racecar look. A pair of Recaro SP-G full bucket seats are just what you need when tackling corners on track, and to help entry and exit procedure the MOMO Race steering wheel is fitted on a Works Bell quick release boss, also serving as a pretty effective thief deterrent, provided you take the steering wheel with you wherever you go! White-faced NISMO clocks read to 320 km/h, but the owner assures he often goes off the scale! The HKS Circuit Attack Counter, fitted onto the steering column, takes advantage of timing beacons at racetracks to accurately time laps. A Blitz boost controller joins the external wastegate to control force-feeding pressure, while the Field ET-S torque split controller allows on-the go adjustments of the ATESA AWD system. The owner decided not to remove the Addzest audio system as it keeps him entertained on the long drive back from Central circuit! Only in Osaka would you be able to get away with driving a car like this on the street, the noise alone would attract the unwanted attention of the law up in Tokyo, but here, where loud VIP sedans cruise the city streets, anything goes!
Nissan Skyline GT-R R34
Owner: Final Motion Built Customer Car
Hometown: Osaka, Japan
Daily Grind: Tuning Specialist
Under The Hood: RB26DETT engine; GReddy/Trust TD07S-25G single turbo conversion, external wastegate, stainless exhaust manifold, intercooler with spray system, oil cooler, oil filter relocation kit; Tomei forged pistons, H-section connecting rods, Poncams, metal head gasket; Final Motion titanium wastegate screamer side-exit pipe, front pipe, titanium exhaust system, custom one-off titanium intake pipe, piping kit, side flow racing radiator, radiator overflow tank, oil catch tank; extended oil sump; Blitz SUS metal cone air filter; SARD fuel pump, adjustable fuel pressure regulator, 720cc injectors
Drivetrain: ATS twin-plate carbon clutch and carbon rear LSD
Brains: A'PEXi Power FC and D-Jetro
Power: 620ps at 7,200rpm; 62kgm at 5200rpm
Stiff Stuff: Quantum adjustable suspension kit
Stoppers: Brembo 8-pot calipers and 380mm slotted discs (front); Performance Friction brake pads
Rollers: NISMO LM GT4 10.5Jx18" +15 (front & rear); Yokohama ADVAN A048 265/35R18 (front & rear) tires
Outside: Final Motion carbon-Kevlar front bumper (NISMO Z-tune shape), carbon-Kevlar bumper air intakes, carbon-Kevlar front wide fenders (NISMO Z-tune shape), carbon-Kevlar aero hood, carbon-Kevlar side skirts (NISMO Shape), carbon-Kevlar side skirt extensions, carbon-Kevlar rear skirts (NISMO shape) and adjustable carbon rear GT-wing
Inside: Recaro SPG full racing bucket seats; MOMO Race leather steering wheel; ARC shift knob; Works Bell snap-off boss; NISMO 320km/h white-faced main meter unit and MFD Ver2; HKS Circuit Attack Counter; Field E-TS Electronic Torque Split Controller
Ice: Addzest audio system
WWW: apexi-usa.com, greddy.com, hksusa.com, mackinindustries.com (ARC), more-japan.com (SARD),recaro.com, tomeiusa.com