Is there any demand for programmable toyota ecu's?

[ChaosAD]

Im developing a board to replace the standard chipset in a 20v silvertop ecu with a 'megasquirt MS2 daughtercard'
http://www.megamanual.com/ms2/hardware.htm

It will be running the sequential version of the ms2extra code.
http://www.jbperf.com/sequential/index.html

This will allow the ecu to be tuned in realtime using a laptop and the freely available 'TunerStudio MS' tuning software.

Would there be much demand in developing another board for other ecu's?

Im looking at doing one for the blacktop but need to devise a way of replacing the plcc processor with a pcb.

[jakesae101]

id be keen if you could do one for a 4agze

[Trls250s]

MSIII will be out soon! Makes me moist with excitement

[ChaosAD]

Is that the ae101 gze ecu or one of the ae92 ecu's?

I would do one for the gze but the ms2extra code doesn't currently support the toyota multiplex ignitor used on the gze.

MS1extra does but is not as highly specc'd as ms2.

MSIII will be out soon! Makes me moist with excitement

Yea bring on the 8cyl sequential fuel/spark and sdcard logging
http://www.ms3efi.com/product.html

http://www.ms3efi.com/feature-xref.html

I have been waiting forever for the gpio board which still isnt released though so not holding my breath fr the ms3.

[sergei]

you people are awesome!.
I wish I would had time for something like that...
Now I am married and can't even wire in link in my ST165 - no time.

[Mr Revhead]

sounds like you need to retrain wifey

[Trls250s]

sounds like you need to retrain wifey

Agreed.

Just make her real tired during the day doing "couple things" then she will go to bed at 8 and u go work on the car until 1am. Its what i do.

[jakesae101]

Is that the ae101 gze ecu or one of the ae92 ecu's?

I would do one for the gze but the ms2extra code doesn't currently support the toyota multiplex ignitor used on the gze.

MS1extra does but is not as highly specc'd as ms2.

MSIII will be out soon! Makes me moist with excitement

Yea bring on the 8cyl sequential fuel/spark and sdcard logging
http://www.ms3efi.com/product.html

http://www.ms3efi.com/feature-xref.html




I have been waiting forever for the gpio board which still isnt released though so not holding my breath fr the ms3.

ae92 afm gze

[Boost_4_Life]

When are you likely to have this ecu done?

Im in need of something for my silvertop, but since im not gonna do any real serious engine mods i dont really see the point in shelling out on a link... People have been trying to convince me to convert a honda ecu.. (unsure which). Guys at work are quite heavily into remapping honda ecus and tuning etc.

[Mr Revhead]

the factory silvertop map is the single biggest let down of that engine.
tuneable ecu would be a huge improvement. if you can buy a plug in megasquirt type thing as chaos is suggesting then that would be a bloody good thing.

[Loudtoy]

When are you likely to have this ecu done?

Im in need of something for my silvertop, but since im not gonna do any real serious engine mods i dont really see the point in shelling out on a link... People have been trying to convince me to convert a honda ecu.. (unsure which). Guys at work are quite heavily into remapping honda ecus and tuning etc.

Do the mega squirt thing, thats what i'm runnin but unsure which version at this stage untill i look properly. Seems to have enough stuff for what i need it for and i'm pretty sure you won't need any more functions than i do Same application and all.

Question for chaos what are you using for the dizzy pickup in the setup you doing, for some reason and i think it's related to that my setup is using a mitsi pickup soldered into the dizzy somehow, haven't had it off to look but the previous owner told me thats what he had to do to get it sorted to run nice.
Couldn't figure why a standard one wouldn't work out.

[neo]

So something like the mines ecu mod for the silvertop ecu?




Depending on cost I could be interested, as I ony have minor mods and a real ecu $/kw isnt worth it.

[Mr Revhead]

Depending on cost I could be interested, as I ony have minor mods and a real ecu $/kw isnt worth it.

it is over the stock ecu!

[ChaosAD]

When are you likely to have this ecu done?

Im in need of something for my silvertop, but since im not gonna do any real serious engine mods i dont really see the point in shelling out on a link... People have been trying to convince me to convert a honda ecu.. (unsure which). Guys at work are quite heavily into remapping honda ecus and tuning etc.

Do the mega squirt thing, thats what i'm runnin but unsure which version at this stage untill i look properly. Seems to have enough stuff for what i need it for and i'm pretty sure you won't need any more functions than i do Same application and all.

Question for chaos what are you using for the dizzy pickup in the setup you doing, for some reason and i think it's related to that my setup is using a mitsi pickup soldered into the dizzy somehow, haven't had it off to look but the previous owner told me thats what he had to do to get it sorted to run nice.
Couldn't figure why a standard one wouldn't work out.

Not for some time, I have a prototype made up on veroboard but would like to run it for a few months before getting any boards made.

The honda ecu's have the hondata daugterboards available which would be similar to what im doing for the silvertop, I believe some honda ecu's can even be reflashed.
I think they have a 24 tooth, 4 tooth and a single tooth wheel though so you would need to sort something there. This may differ between models though.
Id personally for MS over a honda ecu but im biased.

Yea the stock dizzy pickups dont play nice with the megasquirt VR conditioners, but it looks like this can be rectified with a few circuit tweaks.
Theres a thread about it in the msextra forums.

Im using the standard silvertop circuits including vr conditioner ic's though so its not an issue.

Ill pick up a gze ecu and see what I can do.

Its similar to the techtom, mines and sard silvertp ecu's in that the cpu is removed and a daughterboard fitted.
http://membres.lycos.fr/mr2/techtom.htm
http://suprasonic.org/sonictech/techtom/

But instead of refitting the stock cpu to the daughterboard and forcing it into diag mode to read the maps from an external source, ill be replacing it with the megasquirt cpu.
This can be tuned in real time using a laptop and freely available software.

[headshotnz]

Could be keen on one for a silvertop, what sort of price would you be thinking?

[xsspeed]

As I know sweet FA about ecu's please excuse my ignorance, but would what you are developing for a silvertop be capable of running boost as well? My application would be blacktop but just wondering, as I haven't made my mind up whether to go down the turbo path or grumpy n/a.

You mention the honda ecu's being able to be 'flashed' this I understand as the newer falcons have flash programmed ecu's. Would what you are doing with the MS be similar? IE loading of maps?

I'll express my interest, but I'm a long way off getting my car running, which may be a good thing i fyou are still tinkering with the setup. Sounds good though!

[~SlideWays~]

Could be interested, depending on price.

Will you be looking into pre-tuned plug in options, for standard to basic modifications? I think they would sell really well because as Revhead said, the silvertop would be much more lively with a better tune.

[Crampy]

I'm interested. I have a Silvertop (and soon to have a Blacktop) powered AE92.

[ChaosAD]

I have a standard silvertop in the FX so will probably throw it on the dyno and supply the ecu's with those maps burned to them.

For other ecu's I would just supply base maps acquired from the net.

I'll probably add a 3bar map sensor to the board and maybe a circuit to drive the fuel pump relay.

It should work sweet with a turbo, but when you upgrade the injectors theyll need to be the same impedance as the standard ones (high).

It should run a blacktop fine but you would need to use the silvertop loom

Im not sure on price yet as I dont know what the boards are going to cost.

But going by the prices below im guessing around $500-$800 which is still cheaper than a basic V3 MS2 megasquirt.

Silvertop ecu $50-$100 plus freight
MS2 daughterboard is close to $200 with freight, gst, currency conversion etc
custom silvertop-megasquirt adaptor board $???
64 pin SDIP socket $65 plus gst from farnell but there could be cheaper sources around.
Components $???
Labour $??
Map sensor $40?

I would also replace the electrolytic caps which have a habit of leaking.

Im not sure about the falcons but with the mitsi the ecu can be reflashed by plugging an 'openport 2.0' cable/module into the diagnostics port and plugging a laptop into it, but the cable/module is about $300.
You also need to find the correct definition file for your ecu.

With this you would just plug your laptop straight into the serial or usb port and tune it as you would a link.

This is one of the possible tuning programs you can use.http://www.efianalytics.com/TunerStudio/

[85AW20v]

So for a std silvertop upgrade, it's all plug and play as we could send you our ECU's, you'd add the new board with the map from your dyno tune, refit and away we'd go? Sounds like a good thing to me.