Toyota Supra NA-TT Conversion – Aristo Engine Differences – Part 4

Summary                                        Part 1  

Removal of stock parts         Part 2  

Wiring                                              Part 3  

Aristo engine differences    Part 4    – You are here

Installation                                    Part 5

Final thoughts                             Part 6

Something I kept out of the installation stage is the specifics around the aristo engine differences as I believed this needed a section on its own. Most people who do the 2JZGTE conversion will use the Aristo engine as they are easier to come across than the supra 2JZGTE in most instances.

So if you have a supra 2JZGTE then you can skip this step, but some of the information below may be of help for maintenance in the future.

The VVTi 2jzgte engine also came in the 1998-2005 Aristo V300 (JZS161). I have previously listed a general rundown of the differences on the VVTi Information page on 2JZGarage here – http://www.2jzgarage.com/2012/02/2jzgte-vvti-information/ but I’ve provided a little more information and pictures as I found it’s more relevant to the swap if you are using this engine.

If you are swapping this engine into a supra then you will need to do the following:

  • The Aristo power steering pump has a solenoid valve for progressive power steering which the supra doesn’t, mainly this effects the power steering lines as the bolt configuration is different, you will need a supra one and to remove the Aristo one, also a new P/S outlet will be required and along with different vacuum hose layout for idle up function.
  • The water pump is the same on the VVTi and is not hydro – it will not need to be changed
  • The Aristo has a front mounted sump, you will need to change to a Supra mid-mounted sump layout.
  • The engine loom will need to be modified to suit the minor differences and connectors or swapped for a Supra unit
  • The engine mounts and brackets will need to be swapped for supra items
  • A brake booster bung (Goes to top of intake manifold) will need to be purchased that suits the supra manifold
  • The o2 sensor loom plug will need to be swapped over to a supra one or lengthened
  • A Supra water temp sender (Not sensor) will need to be purchased and installed, this sends the temperate reading to the gauge cluster
  • An oil level sensor plug may need to be purchased depending on the year model
  • Supra specific heater hoses from engine will need to purchase or made to suit as the Aristo ones are routed differently
  • The oil dip stick bracket is different and will need to be modified or replaced with a Supra one
  • Oil return lines from turbos are different and supra ones required, this is due to the different sump layout, the non-turbo sump can be used but will require modification for the oil return
  • The engine dampener that stops the serpentine belt being flicked off and/or loose tension will need to be swapped to a manual one if you are using the manual gearbox

Power steering pump and diagrams
Supra Idle up vacuum routing
“IdleUp"

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Toyota Supra NA-TT Conversion – Wiring – Part 3

Summary                                          Part 1
Removal of stock parts           Part 2
Wiring                                                Part 3   – You are here
Aristo engine differences      Part 4 
Installation                                     Part 5
Final thoughts                              Part 6

Wiring is probably the most daunting and cumbersome for most completing this conversion. If you do not know much about wiring or aren’t confident reading wiring diagrams then please have an auto electrician or workshop do the work for you.

At the time I spent a while reading the diagrams, looking at the differences and it probably took me a few weeks of studying and identifying what I needed to do, there could be small differences between year models and SZ/SZR so the information below is all on my experiences.

I’m going to give you the best advice here – Track down the end state engine loom and stock ECU, and this will save you countless hours of troubleshooting and won’t require too much custom wiring. If you track down a front body loom for the fuse box area then it should be all plug and play. There are so many variables to this step and this is the process I followed which worked for me, I was lucky enough to find a VVTi engine loom and ECU out of a supra.

The last step in all of the stock removal should have the engine loom out of the way and all of the connectors unplugged, ensure the GE engine is out and that the GTE is ready to have the loom installed (If required).

Also last thing – Please check the first page of this guide for links to all the wiring manuals, pinouts and parts required.

Below is a general guide to the custom wiring you will need to do

  • Fuse box EFI1 / EFI2 wiring
  • Fuse box ECTS-i wiring
  • Potentially o2 sensor and water temp sender on engine wiring loom (On aristo engines)
  • If you want the electric fan for the A/C you will need a 30amp FAN fuse with a relay/wiring – I decided against this
  • If you want advanced ABS and traction control buttons you will need that wiring and ECU – I also decided against this

The GE and GTE share the same fuel pump ECU and fuel pump, the only difference is that the GE only has 1 EFI relay and the GTE has 2 EFI relays.EFI2pic

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All Japanese Car Show – 2015

Earlier in the month my family and I got a break from our busy schedules to check out the first all Japanese Car show located in Canberra ACT. There was a really nice gathering of all types of Japanese Cars and Motorbikes from early to late models.

Some of my favourites were an older 70’s civic, Celica GT4, multiple FD RX7’s – one with lots of carbon goodness and another Spirit R, TME Evo 6.5, Neil Bates TTE Corolla WRC, some very nice R32/33/34/35 GTR’s and heaps of other amazing vehicles.

Was a great quality turnout and I’m looking forward to next year.

……Was also an excuse to have a few runs against my Wife’s MY14 R35 GTR with the Supra 🙂

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World’s first 5 second import – 2JZ Supra

Did we ever doubt that a 2JZ powered vehicle would be the first in the 5 second 1/4 mile club? No we didn’t!

Although this may be old news to some, I held off posting EKanoo Racing Supra’s 5 second 1/4 mile run as these guys were breaking records left right and centre. An amazing effort by the EKanoo team and another great drive job by Gary White.

Best E.T – 5.97 @ 387kph (240mph)
Best trap speed – 6.00 @ 394kph (245mph)

World’s first 5 second import
World’s Fastest Supra
World’s Fastest 2JZ powered vehicle

In addition they also ran a 6.65@356KM/H (221MPH) in the Toyota 86 with the 2JZ combo, making it the world’s fastest 86 down the 1/4 mile.

Also I’m glad Khalid Mohammed’s recovered and walked away uninjured after this nasty crash in the Twin Turbo Lexus ISF.