Stagea.co.uk
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THE GREEN MACHINE
Engine - OG Giken RB30 (the real thing)
Brand new N1 Block bored & decked to 2998 cc
OS Giken Billet Crank Forged Rods & Pistons
OS Giken adjustable pulleys OS Giken kevlar cam belt
jun oil pump nismo water pump
OS Giken 9 bolt flywheel
OSG Triple plate Clutch
Cylinder Head
RB26 Head Gasflowed & ported HLS step 3 cams
Tomei 1mm oversize valves guides, lifters, springs buckets
Turbo set up
Borg Warner EFi 8374
with 1.05 housing
6 Boost twin RB30 specific Twin Schroll manifold
Turbosmart 60mm BOV
Custom pipework with michelob clamps
Fuel System
Protec P1 screwless in tank pump (used in the veyron )
Larger proline telflon fuel line
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
Strenghtened center plate ,
larger input shaft
All cryo treated and rebuilt
Engine electronics
Link ECU
custom crank trigger set up
NZefi coil pack conversion including mounting plate and custom NZEFi wiring loom
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
RB20 turbo rocker covers , cam cover and center plate
tomei baffle plates and filter
As R30 is a taller engine without modification there would be a gap between the front covers so the botton cover has been lenghtened so everything looks stock,
All the covers were then powder coated to match
Cooling
HKS 100mm FMIC
Custom pipework with michelob clamps
large capacity kkkk radiator
custom shrould and mounts for twin electric fans
Custom aluminium ducting from Nismo vent in bumper directly to K & N air filter in engine bay
Exhaust
Custom 3" downpipe,
4" HKS Hi power silent
Power
Mapped by Garth at MGT Racing and made 735 hp but
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
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 rear arches widened to match MASA fronts in metal
custom vented bonnet
There will also be some other custom mods to be revealed when the car is completed
Suspension
Rear subframe -
Whiteline GTR ARB s (front and rear )
33GTR Ams and hubs Adjustable GTR arms with polybushes.
Nismo S Tune suspension
Whiteline subframe and diff poly bushes
All of the arms etc on the rear have been changed to GTE
AWD System
The car was used a prototype to find a way of uprating the Attessa system to past 34GTR spec by installing a TSC which allows 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 a GTR attessa ECU and then providing it with the extra signals. We used a skylab TSC which has much better four way digital sensors.
The ECU need 2 extra feeds for the skylab TSC from the new digital speed sensors and the auto snow mode switch
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 will also now repond even 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 and GTr diff internals to rear
Also the car now runs GTR ratio diffs.
Front Kanzai strutbrace with a modified GTR brace to rear
Brakes
Front is 343mm AP Racing Discs with 6 pot calipers
Rear 34 GTR calipers and discs keeping Stagea handbrake
Nimso braided brake lines with 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 metal security box with removeable isolator switch
Engine Bay
Bpth 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.