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If you are in CA its easy. The best induction system made for the GTR is the stock arrangement with a set of Password JDM snorkels (made in CA) for the airboxes. Forget about the pod filter intake kits, they are hot air generators and power reducers for the most. They also tend to cause laminar flow and tuning problems for the airflow meters. Folks will work this out soon enough.

The GTR exhaust is just a matter of taste. Obviously I would recommend a Willall midpipe - wouldnt I - but the reality is that from the cat back there is little to be had (nothing, no power) in a full system. Why? The stock R35 system is totally straight through, and most of the aftermarket systems are actually smaller in diameter around the mufflers. True. For aesthetic pleasure then by all means go ahead and get a big shiny, but it wont sound/go any different to a stock system + midpipe :)

Edited by Martin Donnon

Thats excellent advice Martin. It is impressive how many of the standard parts on the R35 GTR can not be improved on by much. I have always hated buying a new car & having to rip the whole exhaust system off & chuck it in the bin.

At least with your midpipe it is a quick & easy mod & you get a great power/sound improvement without having to change the rest at huge expense. That money saved can then be put towards upgraded turbos instead!

  Martin Donnon said:
I will try and answer that rather condensed post in point form......

1) Thats typical of an internal wastegate boost curve

Would a stronger pair of wastegates' actuators redice this loss in high rev range Martin?

Edited by 9krpm

No I dont think so 9krpm, I would suggest thats what the turbos have to deliver and between being on the edge of compressor and turbine flow, the whole system is starting to become 'on the limit' in terms of its response :P

Having said that the actuators used in this instance are 0.8bar units which MAY not be quiet enough for 1.4 bar application. On the flipside this gives the end user the great ability of being able to 'flick' the switch to a nice low boost level for everday driving that 1.2 bar actuators simply wont deliver. We will be mapping the next such installation with stock 0.7 bar actuators and a new RPM derived Wastage duty cycle table to deliver a similar result to aftermarket actuators and boost controller without the complication and expense :D

The project is nearly completed, a few more items to go and it will be all done, a big thanks to Martin and all the guys at Willall Racing who invested their expertise and have worked tirelessly on this project. The guys at Willall are undoubtedly the #1 GTR specialists in Aus.

Some pics:

gtr1.jpg

gtr2.jpg

gtr3.jpg

gtr4.jpg

gtr5.jpg

gtr6.jpg

gtr7.jpg

gtr8.jpg

gtr9.jpg

gtr10.jpg

For those interested the current mod list on this R35 is:

Engine and transmission:

Willall:

Turbo upgrade (WR35TT )

Front Mount Transmission Oil Cooler (WR35TC)

Rear Diff Cooler (WR35DC)

Front Diff Cooler (WR35DC-F)

High Volume Oil pan (WR35OP)

Trans fluid (WR35TM)

Diff Fluid (WR35DF)

Motor Oil (WR35MO)

Gearbox seals (WR35GS)

Mid Pipe (WR35MP)

PPG 1st gear set

HKS Super Sequential BOV Kit

HKS EVC 6 Boost Controller

HKS A/F Knock AMP Sensor

HKS super fire spark plugs

Cobb AccessPORT with custom tune

5Zigen downpipes

5Zigen Spec tune exhaust

AAM engine oil cooler with custom fabricated lines

AAM wastgate actuators

SSP RS Clutch pack

Duetschworks 800cc Fuel injectors

MCR/ARC twin intercooler kit

K&N Filters

Nissan Spec V radiator coolant reservoir and fittings

Exterior:

Password JDM:

RAM air induction snorkels

NACA ducts

Radiator cooling panel

Intake Manifold

Bonnet

Boot lid

Rear diffuser blades

Rear speaker shelf

Elevated rear spoiler

Door sill covers

Engine compartment covers

Stillen:

Front lip

Side skirts

Wheels, suspension and brakes:

Volk TE37 G2 wheel

Eibach springs

Cobb Tuning Anti-Sway bar kit

AP Racing J Hook Rotors Front

AP Racing J Hook Rotors Rear

Stillen stainless steel brake lines

Endless Brake pads

Interior:

MCR paddle shifter

Sparco Steering wheel

Works Bell Rapfix II quick release steering hub and flipper

Items soon to be installed:

Password JDM rear seat delete kit

Tecnocraft T1 carbon race seats

Stillen AP Carbon Ceramic brakes

Edited by SlipR35
  GT-R OZ said:
Is the car actually going to see some track time or be parked outside cafés all day? .

Simple answer....if you got one you can....if not, well you know what to do :D

After seeing the custom race trailer thats built for it though I would "suggest" it might be a half decent Time Attack kind of thing - just a hunch is all :)

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