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Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1724
Reg: 04-2006

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Thursday, May 25, 2017 - 12:29 pm, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I've been solidly programming for a few weeks now and learning as I go, but i'm happy with the progress! :-)

Short button press changes the display, long press clears the max and min values.

Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1725
Reg: 04-2006

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Thursday, May 25, 2017 - 12:33 pm, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

This is an example of my drive to work one morning last week.


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Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1726
Reg: 04-2006

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Thursday, May 25, 2017 - 12:41 pm, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I am also working on a dual parameter version , but this is just a mock up at this stage.


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I've ordered a 3D printer and will try and make a nice enclosure for it :-)
Mike Beck
Goo Roo
New Zealand
3UZ-FE V8 4.3 UZZ32

Posts: 6103
Reg: 11-2005

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Thursday, May 25, 2017 - 06:46 pm, by:  Mike Beck (Gold_40gt) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Very cool Tai, I like such work as this.

Not to mention it's interesting, fun, rewarding and ultimately a challenge. :-)
Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1727
Reg: 04-2006

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Saturday, May 27, 2017 - 08:49 am, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks Mike,

I like having an interesting project to work on to keep learning new things.

I had trouble going to sleep for a while thinking of how to write specific parts of the code. It was really annoying!

I'm REALLY looking forward to getting the 3D printer... I've wanted one for years.
Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1737
Reg: 04-2006

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Friday, September 15, 2017 - 10:03 am, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I finally got the time to integrate the small OLED into the dash.

Being a POV pack manual dash I was quite surprised to see the PRND321 display in between the ODO and clock right where I wanted to put my little screen, so I had to place it on the front side of the glass / mirror instead.


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I had to notch out some plastic to get the display low enough that it didn't impede the tacho and also make a small cut to feed the ribbon cable through to the back of the display.



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To cycle through the display screens I got a hold of a scroll dash button assembly and ran some wires out the back of the connector to my control board


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It is completely invisible when the car is off and when the screen is set to off, but nicely visible when powered up. Just a little bit dimmer than the rest, but seeing as though there is no brightness control that's probably a good thing for when the headlights come on and the dash dims.


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All in all a great little project and very happy with the results.
Mark Tierney
DieHard
NSW
JZZ30 GTTL 446rwkw, GS350 F-Sport, Celsior, Ducati SS

Posts: 674
Reg: 09-2005

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Friday, September 15, 2017 - 11:05 am, by:  Mark Tierney (Mark_t) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

very nice
Andrew McKellar
DieHard
NSW
Mustang GT

Posts: 900
Reg: 06-2008

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Friday, September 15, 2017 - 07:50 pm, by:  Andrew McKellar (Toymax) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Awesome job Tai. Looks factory!
Ben Lipman
Goo Roo
SA
Soarer TT manual, plus TT track car, plus a spare shell

Posts: 4063
Reg: 04-2006

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Sunday, September 17, 2017 - 09:44 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Nice!
Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1739
Reg: 04-2006

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Tuesday, September 19, 2017 - 03:54 pm, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Cheers guys,


Andrew McKellar wrote on Friday, September 15, 2017 - 07:50 pm:

Looks factory!




Thanks, that's the goal :-)

I'm setting up the custom screens to suit the info that I'd like there now.
Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1740
Reg: 04-2006

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Tuesday, September 19, 2017 - 06:16 pm, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

This is what I have so far ;)

Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1741
Reg: 04-2006

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Tuesday, September 19, 2017 - 06:18 pm, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I should really get the tacho working
Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1743
Reg: 04-2006

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Tuesday, October 24, 2017 - 12:46 pm, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I finally relocated the heat-soaking factory air temperature sensor down to the inter-cooler piping and as expected the data is much more accurate.

I started the car and let it idle up to temperature again to compare it with the previous log I had taken.

The top two lines are engine coolant temp and the bottom two are intake air temp.


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Ignoring the offset starting point you can see the factory sensor just keep on rising with the engine.

The new setup will allow me to turn back on the 'Auto VE air temperature compensation' in the ECU to more accurately meter the air coming into the engine.

You can see the BOV and IAT sensor in this pic of the front laft wheel cavity.


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The new fuel pump went in too with a near disaster from a failed crimp on the factory plug.


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The pump itself tho seems very good so far being super quiet, holding pressure with 200Kpa added to the regulator line and being able to flow more for less current than the Denso unit.


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Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1744
Reg: 04-2006

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Saturday, November 04, 2017 - 06:57 pm, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

The new Garrett 'G' series of turbo look like a serious competitor to the smaller EFR line of turbos.

The 660 HP one looks downright amazing for the size of it. The 67mm compressor wheel looks to flow the same as the EFR 71mm at a HIGHER efficiency! This would mean similar (if not more) power than the 7163 with possibly even better response from the smaller comp wheel...

Looking forward to seeing some results!

https://www.full-race.com/blog/garrett-g-series-turbochargers/


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Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1746
Reg: 04-2006

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Wednesday, November 08, 2017 - 01:03 pm, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

New gremlins have risen since the fuel pump upgrade.

It seems the AEM 320 is quite the little pump!

The regulator is unable to return enough fuel causing the pressure during vacuum to become artificially high.

The WOT and boost fuel pressures are great, but in vacuum the pressure rises above the base pressure.. I am haven't decided if I should slow the pump down with PWM (good for keeping fuel temp down too) or to upgrade the regulator... Or both..

Fuel pump priming, engine off

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Engine idling :-(

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Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1747
Reg: 04-2006

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Friday, November 10, 2017 - 03:56 pm, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Tai Johnsen wrote on Tuesday, September 19, 2017 - 06:18 pm:

I should really get the tacho working




Finally got this working today.

The tach would sweep with key on, but when drop out with the engine running. It would intermittently return after a 1/2 hour of driving and sometimes work in unison with the indicator, so I was confident it was something voltage related.

The dash wants a 0-12 volt signal so I broke out my trusty oscilloscope and the 4k7 ohm internal pullup resistor on DPO1 of the ECU only managed to create an 8v p-p square wave.

Seemingly juuust enough to be read by the dash at 12v, but with the car running and the alternator providing 13.5v the signal dropped below the threshold.

Unfortunately that is the strongest pull up that can be used for that output so I added an external 2k ohm resistor and the tach works perfectly now and pulls up to the battery voltage.

Only took 3 years to fix


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Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1749
Reg: 04-2006

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Saturday, November 18, 2017 - 02:55 pm, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

New Turbosmart FPR800 installed today and the fuel pressure it all good again.

The stock regulator was just completely saturated and unable to flow enough return fuel to the tank.

It makes sense when you consider how small it is, that the new pump flows about twice as much fuel as stock, and is running at 12V constant, not the 9-12V from the stock ECU.

Quite please with the location and and neatness of the install.


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Antonio Hunt
TryHard
NSW
TT

Posts: 398
Reg: 11-2006

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Tuesday, November 21, 2017 - 02:05 pm, by:  Antonio Hunt (Carajo) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hi Tai, that display looks great. If you don't mind can you share details on the parts?
Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1750
Reg: 04-2006

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Tuesday, November 21, 2017 - 11:58 pm, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Cheers Antonio, yeah sure bud.

The main controller is an Arduino based board with a CAN controller and voltage regulator built in called 'Leocan' and the display is a 1.3 inch 128x64 SPI OLED from Adafruit.

They both come with libraries and examples to get you started.
Antonio Hunt
TryHard
NSW
TT

Posts: 399
Reg: 11-2006

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Thursday, November 23, 2017 - 05:01 pm, by:  Antonio Hunt (Carajo) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Great thanks Tai, see how I go.
Just checking, these are the right parts?

Main controller
http://www.hobbytronics.co.uk/leonardo-canbus
Display
https://www.adafruit.com/product/1431
Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1751
Reg: 04-2006

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Friday, November 24, 2017 - 05:49 pm, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Yeah, that's the ones... I have some still if you want to make something. I have larger 2.4 inch screens also. Same resolution and library, just bigger.
Antonio Hunt
TryHard
NSW
TT

Posts: 400
Reg: 11-2006

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Tuesday, November 28, 2017 - 09:49 pm, by:  Antonio Hunt (Carajo) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Cheers Tai
I've ordered some, thanks for the offer
Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1763
Reg: 04-2006

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Wednesday, May 23, 2018 - 10:04 am, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Some more progress on the old girl lately.

It has been driving very well, still haven't dyno tuned it and the ECU has been in there for well over a year (possibly two!)

I made a nice little exhaust cutout with some left over 3 inch stainless from when the dump pipe was made and added a pressure activated butterfly valve for a super free flowing exhaust!


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This attaches straight after the dump near the gearbox and I have set the ECU to open a solenoid (allow pressure to the actuator) when the engine is above 3000rpm and 70% throttle..

It sounds amazing, and it's just like normal when it's closed

I also decided to ditch the engine fan because although it is very effective, it also sounds like a land cruiser and does stuff all in traffic with low engine speed

With my natural tendency towards quality I decided to go for two 12 inch SPAL curved blade thermo fans and PWM them with the Haltech for nice quiet and smooth operation instead of the ON, OFF, ON, OFF cycling with relays and hysteresis settings.

PWM allows you to essentially have full control of the the fans RPM and increases the life span while reducing the huge inrush current every time they turn on as well as keeping the noise down.

To use PWM you need a fast SSR (Solid State Relay) as a regular relay will die due to the huge cycles (the PWM signal frequency is quite high)

I looked for quite a while and managed to find a nice solution from Amazon. It is 40 Amps capable and has a mounting bracket and plug with flying leads for $40 US. It is a Dorman 902-310 Radiator Fan Relay

https://www.amazon.com.au/Dorman-902-310-Radiator-Relay-Pigtail/dp/B0053T60SE

Designed as an OEM replacement for a Chrysler or something there are no specs on it, but it works very well so far.


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I wanted some safety and redundancy so I am using one per fan even though it has enough grunt to drive both. Ifound a nice little resting spot for them above the intercooler and then set about making a nice fan shroud.


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I took some basic measurement from the original radiator and got a mate at work to bend the edges for me. Then I made up some mounting tabs and chain drilled the cutouts in the aluminium because i'm a glutton for punishment.


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I wound some high tensile mounting bolts through and put a stiffener / divider between the fans to keep the flow should one fan stop.


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Now everything has a place I made up a nice robust wiring loom and installed it.


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While I had the soldering iron out I decided to rewire my fuel pump relay to a more permanent solution instead of the electrical tape and zip tie monstrosity.


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While I had the ECU loom out I decided to add the wiring needed to add a front wheel speed sensor from an ABS equipped soarer and a switch (as well as the exhaust valve and thermofan wiring) so I can setup % slip traction control

That's about it!
Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black! + 89 Z20 Aerocabin

Posts: 1764
Reg: 04-2006

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Wednesday, May 23, 2018 - 10:18 am, by:  Tai Johnsen (Privatejohnsen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)



Entering different PWM Duty % into the Haltech software
Peter Nitschke
Junk Filterer
South Australia
UZZ30 UZZ31

Posts: 12944
Reg: 11-2004

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Thursday, May 24, 2018 - 10:44 am, by:  Peter Nitschke (Pen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

That's excellent work Tai!

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