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A little side quest that I have been working on . A VR4 clean up for a local guy that will start of as a factory ecu car...
18/10/2026

A little side quest that I have been working on .

A VR4 clean up for a local guy that will start of as a factory ecu car and will be swapped for a at a later date. Im upto fitting the plugs and labels.

More pics to come once finished this week..

18/10/2026

Things that you can do with an ECU/VCU

Haltech

Headlights , park light and pop up lights all controlled by VCU.

Factory head light switch wired into IC-7 and then VCU controlling the relays.

A nice challenge for me.

Jordan Yoo sweet RX-7 build is all done. This was a big build as the car had no wires apart from the harness to the tail...
18/10/2026

Jordan Yoo sweet RX-7 build is all done.

This was a big build as the car had no wires apart from the harness to the tail lights.

The task was to wire all the basics for a street driven car.

We chose the Haltech R3 VCU mated to an IC-7 dash .

I chose to control most of the car from the ecu and wired all the necessary switches into the IC-7 and use the ecu to control the features.

The ecu receives the signals from the dash and operates the park lights , head lights and the pop up head lights .

I wired all the front of the car from scratch , including blinkers.

The VCU is now controlling 2 x Aerflow brushless fans , 2 x walbro 460 pumps via the internal PDM . The alternator and starter motor are VCU controlled.

The car was equipped with R35 coils , 1650cc injectors and some other goodies.

I had the 3d printer out for this 1 and designed and printed custom wire harness mounts , a new firewall ring to suit the Haltech supplied rubber grommet , a new alternator battery cables insulator , VCU mount , battery and fuse box covers and some blank panels for the dash for the unused stereo hole.

I mounted a small AGM battery in the front kick panel and all the needed fuses and relays behind the glovebox.

Jordan has taken car to finish some final touches and hopefully start up will be in the near future. I enjoyed the challenges of the different brand product and figures out ways to make every work .

Lookimg forward to some more build like this in the future.

I just had the 1st version on the evo 7-8 ecu case for the Link ECU plug n play ecu installed by Backyard 4G and the fit...
09/10/2026

I just had the 1st version on the evo 7-8 ecu case for the Link ECU plug n play ecu installed by Backyard 4G and the fitments was good.
Next time I actually have a car physically here , I'll make some small alterations.

I have been busy over the past few weeks with a car that's nearly finished. Ill post some more on that soon, but in the ...
29/09/2026

I have been busy over the past few weeks with a car that's nearly finished. Ill post some more on that soon, but in the short term I have been ask to do a couple little jobs with the 3d printer.

Firstly is a protype of an Evo 7 Ecu case to suit the Link ECU Evolink 4-7 plug n play ecu. It copies the original case style with the board sliding into the case.

I don't have the car , but this will be test fitted this week by the Backyard 4G team .

Next is another job that has been requested by Backyard 4g . It will be an adaptor harness for an Evo 4-7 ecu into an Evo 1-3 harness. Ill start the wiring part next week, but this housing hold the Evo 1-3 header socket and will have the Evo 4-7 terminated plugs.

The last is a alternator B+ insulator for the car I'm working on as the original was brittle and fell apart.

A little side project this weekend with the 3d printer. I'm starting to design a new ecu case for the Link ECU plug n pl...
13/09/2026

A little side project this weekend with the 3d printer.

I'm starting to design a new ecu case for the Link ECU plug n play for the evo 4-7 . This is where I'm up to . The test for the board to slide in and a cover with holes for the expansion harnesses , PC Link cable and a vacuum bulk head.

Next will be to add mounting structure to the design and test fit.

Jerome Chanfoon tuff evo back in for some extras after the fab work. First I finished off the Link ECU Razor PDM install...
09/09/2026

Jerome Chanfoon tuff evo back in for some extras after the fab work.

First I finished off the Link ECU Razor PDM install on custom 3d printed bracket that also hold the Link EGT module and 4 fuse holder .

The PDM is running the ecu power , upgraded r35 coil power , lift pump power , new Aerflow brushless fan . ( what a beast of a fan ). Now those main devices can be current monitored via the ecu. The pdm also powers the head lights and the park lights switched from factory switch and new AES exhaust valve system via a Link 4 button keypad.

The keypad was mounted on a custom panel that replaced the oem ac control unit that is not being used.

Some basic ecu programming was done to syn the PDM , Ecu , keypad , egt module and Haltech IC7 was carried out .

The AES exhaust valve consist of a small vacuum pump and mac solenoid and it as all fitted under the front of the car on electric power steer bracket. Also a Tarrks exhaust pressure was added and wire to a spare input in the ecu.

While the car was here , I also mounted the DW810 brushless fuel pump . To do this I had to add extra bulkheads through the surge tank top plate to have the extra 2 wires added . Fuel should be never in short supply as I wired ecu to trigger brushless pump high out put and additional walbro 535 to come on at the desired time.

The ecu received a new 3d printed case and some minor clean up if the old wiring .

While the car was here , i also upgraded the power tune dash to a Haltech IC7 on the latr NSP software and from the basic testing I did , it worked great with the Link ecu.

We also fitted an R35 coil on plug kit to give that extra spark and I made up an adaptor harness for a Kiggly trigger kit that will be going on soon.

Once the car is up and running , I go over it for any changes it may need.


Backyard 4G Winfab Performance

The next car on my journey was a 1990 VR4 E38 RS. A friend of mine was having some hard times and needed some cash , so ...
15/08/2026

The next car on my journey was a 1990 VR4 E38 RS.

A friend of mine was having some hard times and needed some cash , so he offered me his car for an price that I could not resist.

At this time my own Vr4 was out of action due to a transfer case that ceased due to no oil and it was just parked.

This was a car that only 12 months ago I did some upgrades to the car .

I added an Evo 3 16g and turbo manifold , a chipped ecu , K sport coilovers , new front mount intercooler and piping and some rear adjustable camber arms.

I daily drove this car for a couple years.

Big thanks to Dylan Kellner from Redline Records for my Airtrek Turbo R build and maintance logbook..The quality and amo...
05/08/2026

Big thanks to Dylan Kellner from Redline Records for my Airtrek Turbo R build and maintance logbook..

The quality and amount of work that has gone into these is amazing and definetly a fantastic addition for your Evos .

https://www.facebook.com/share/1Ev1NA7y2o/

Something a little different in the shed. Jordan Yoo FD RX7. Full Haltech setup with R3 VCU , IC-7 dash. R35 coils , Pre...
02/08/2026

Something a little different in the shed.

Jordan Yoo FD RX7.

Full Haltech setup with R3 VCU , IC-7 dash. R35 coils , Precision turbo..

The full plan of the setup is in the works . I will have the full layout worked out during the week.

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Brisbane, QLD

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