Full Specs

Engine  - OG Giken RB30  (the real thing)

The normal OS Giken RB spec....
Brand new N1 Block bored & decked to 2998 cc

OS Giken Billet Crank 
OS Giken
Forged Rods & Pistons

OS Giken adjustable pulleys   
OS Giken kevlar cam belt

Jun oil pump , Nismo water pump 

OS Giken 9 bolt flywheel 

OS Giken 3C Triple plate Clutch

Cylinder Head

RB26 Head Gasflowed  & ported     
HKS step 3 cams

Tomei  1mm oversize valves guide

Tomei springs buckets


Turbo set up

Borg Warner EFi 8374   with 1.05 housing

6 Boost  RB30 specific Twin Schroll manifold     

Turbosmart 60mm BOV

Custom pipework with michelob clamps

Fuel System

Protec adjustable brushless  in tank pump  good for 1000+hp   Output controlled via  Link ECU so low power drain (unlike traditional pumps)

Larger  proline telflon fuel line

Larger Nismo PFR

Racing Lines fuel rail
1000cc injectors

old fuel line  now used as second return

Gearbox

All internals are OS Giken

1-5 gearset with closer ratios

OSGiken strenghtened center plate ,

OS Giken larger input shaft

All internals are new  & cryo treated and rebuilt

Engine electronics

Link ECU

custom crank trigger set up

NZefi coil pack conversion including mounting plate and custom NZ Efi wiring loom
Coilpacks are similar to R35 so dwell adjusted

Ati high power damper.
Gauges are 60mm apexi EL II -  AFR , Oil and Water Temp  ,Oil and Fuel pressure and Boost .with adjustable visual and  audible warning and can record 30 second playback - Useful for standing quarters
 
Other engine mods

R31 Finned turbo rocker covers , cam cover 
R31 Center plate

Tomei baffle plates and filter

 As RB30 is a taller engine without modification there would be a gap between the front covers so the bottom cover has been lenghtened so everything looks stock with no gaps
All covers were then powder coated  crackle  red

Cooling

HKS 100mm  FMIC

Custom pipework with michelob clamps

large capacity 48mm  koyo radiator

Custom shrould and mounts for twin electric fans (no space for oem viscous fan )

Custom aluminium ducting from Nismo vent in bumper directly to   K & N air filter in engine bay
Exhaust

Custom 3" downpipe,

 4" HKS  32GTR Hi power silent modified to fit

Mapping

Mapped by Garth at MGT Racing  made 735 hp

Mapped for response so comes on full boost by 4100rpm
Rev limit is set at 8500 rpm  OSG motors will safely rev to 9K with the right headwork & supporting mods which have been done.
I have done one 9k run which was "interesting"

Body

Full  Nismo Bodykit  -

Wider front wings ( MASA )

18" ultralite nurenbergrings with Toyo 888R tyres

Twin sunroofs

Being done at present

Full bare metal respray

Custom meatl rear arches widened to match MASA fronts   , custom vented bonnet

There will also be some other  custom mods to be revealed when the car is completed

Suspension

Whiteline GTR ARB s  (front and rear )

33 GTR Ams and hubs
Adjustable GTR arms with polybushes.

Nismo S Tune suspension
 
Whiteline subframe and diff poly bushes

AWD System

The car was used as a prototype to find a way of uprating the Attessa system to past 34GTR spec by installing a  TSC which allows complete  control of  lateral movement as well as the normal control of the split  to front  and rear drive. Auto stageas do not have lateral sensors like a GTR and the attessa ECU is not therefore equiped to control it. The 34GTR attessa is also much quicker to respond
The upgrade invloved the fitting of the 34 GTR attessa ECU and then providing it with the extra  required signals.  We used a custom skylab TSC which has much better  four way digital sensors.

The ECU need extra feeds for the skylab TSC  -from the new digital speed sensors .
The actual sensor input is taken form the feed to the auto snow mode switch which is deleted
The new uprated system means that  both the front/rear split and the way the car reacts to sideways movement is adjustable
The set up now reponds  quicker than a 34GTR
The system has bee fitted to 2 manually converted stageas in the UK and both still work fine a decade later and give much better handling
. But to get the full benefit further changes are essential

Other handling mods

 OS Giken torque split LSD to front 
GTR diff internals to rear

 This meams  the  car now  runs the  higher GTR ratio diffs.
Front Kanzai strutbrace 
Modified 33 GTR front brace to rear

Brakes

Front  343mm AP Racing Discs with 6 pot calipers
Rear  34 GTR calipers and discs 
Uses oem Stagea handbrake
Hel custom braided brake lines
EBC yelloe stuff racing pads front and rear
Tomei brake stopper

ATE super blue brake fluid

Interior

Front seats are Recaros with all the interior retrimned to match . Carpets and plastic trims have also been redone in black.

5 point Takarta  racing harnesses connected to custom roll bar.

 Battery has been relocated to the rear parcel area in security box with removeable isolator switch

Engine Bay
Both suspension struts have been replaced and the engine bay re painted oem black

 Battery has been relocated to the rear parcel area in metal security box with removeable isolator switch.

Custom alloy ducting from the Nismo vent in the front bumper to the K & N filter in the engine bay.