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Toyota Supra NA-TT Conversion – Wiring – Part 3

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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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Blog

All Japanese Car Show – 2015

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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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Gallery

World’s first 5 second import – 2JZ Supra

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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.

 

Blog

Cooma 1000m Sprint 2014

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November 22nd of 2014 was the 3rd running of the Snowy Mountains 1000m event – http://snowymountains1000.com.au/.

This event is to see who is the fastest (and has the highest top speed) from a standing start over a 1000m (1km) airport runway in an regional Australian town (Cooma, NSW – close to 1000m altitude). No race fuels, no nitrous, and only on street radial tyres.

Cooma1000m2014

This year the event was even better for my car, no ignition or major boost issues, I had a tune on e85 with some adjusted cam tuning, new tyres and the new turbo setup. More details on my build can be found HERE.

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Blog

2JZGarage – Supra 2JZGTE VVTi Project Update

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Well it’s been a while since I’ve posted up any info on my own supra. Unfortunately the supra and this website sometimes become lowest on the list of life’s priorities, but that doesn’t mean I’m still working on the supra – A man must have his hobbies!

Current power;

  • Tuned on pump 98 fuel with a result of 445rwkw (597rwhp) @ 23.5 psi
  • Tuned on pump e85 with a result of 482rwkw (646rwhp) @ 23.5 psi

Since the last update these are the major changes;

  • Titan 272 VVTi Camshafts, GSC Valve stems, GSC beehive springs and titanium retainers – hopefully a write up coming soon on installing these
  • New LS2 LQ9 coil setup, which you can see HERE
  • Swapped out the old Garrett T51R SPL BB with a new Garrett GTX 4088R turbo with 1.06 rear. This was primarily to make it more streetable with the current engine setup staying stock for a while
  • Exhaust camshaft timing adjustments and slight vvti intake cam adjustment made by my tuner – this dramatically improved mid-range with the turbo by around 40hp – Exhaust cam tuning was 2 degrees of retard from memory
  • TRD Seibon hood removed and stock hood put back on to try and improve bonnet lift while racing at high speeds – although I still managed to brake another shroud at around 270kph (167mph)
  • Flex fuel sensor installed, although wiring yet to be setup and tuning to be complete
  • Tial BOV and other exhaust fabrication work for new turbo
  • Driveshaft shop single piece drive shaft, B series diff, Solid diff bushings to reduce axle tramp
  • Powersteering cooler setup in RHD duct
  • TRD sway bars and new links
  • New clamps for FMIC, fittings and ducting
  • Probably a few other things here and there that I’ve forgot about

Next in line will be cleaning up a few things I’m not 100% happy with at the moment such as improving intake temps. I will be installing twin thermo fans due to radiator setup and high speed racing causing shrouds to break – this will require some further intake fabrication work. Would like to create a custom airbox, install a fabricated oil catch can, changing to a new boost solenoid to allow for launch control/boost by gear and fix up some wiring.

New GTX4088R turbo got installed, managed to tap out a boost fitting and have a local shop do some fabrication work

The Titan 272 VVTi Camshafts, GSC Valve stems, GSC beehive springs and titanium retainers getting installed, I will be putting lots more pictures up and explaining this process in the near future

IMG_3780

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