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ECU Master EMU Black

Old 01-08-2019, 04:17 PM
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Disclaimer: I am not affiliated in any way with the company, just curious. So, me and a good friend have been looking for an ECU for a non-Miata project we are preparing, and these seemed like great options. They are built in Poland, and are widely used by racers there, but also gaining popularity with the drift crowd here as well. Specs seem on par with units at least double the price (full specs on their website: https://www.ecumaster.com/products/emu-black/). "The EMU Black has built-in wideband lambda input (Bosch LSU 4.2, and LSU 4.9 sensors wire directly in), MAP control connector (4 bar MAP sensor on board), 2 EGT probe inputs and an input to directly connect a Flex Fuel ethanol content sensor."

The price is right too; at $1099 this seems like a huge bargain, especially considering the specs. Said friend has helped with a basemap on another car, and said he software is really intuitive and easy to work with. Also HP Academy made a really positive review on this:

Has anyone in here used them before? If yes, what are your impressions?
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Old 01-08-2019, 05:00 PM
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Also interested to learn.
​​​I always thought the form factor of these was crazy, so small.
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Old 01-08-2019, 05:24 PM
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One thing you have to watch for is what trigger wheels they support and what is available for whatever vehicle you are planning on using the ECU on.

For example I have a Haltech Elite 1500, almost top of the line that Haltech sells. It can not use a SPM 36-2 trigger wheel, with stock NB CAM sensor and run VVT, full sequential fuel and spark. It would take code changes that Haltech would not do when I asked. When Emlilio made the timing plate the correct timing pattern was sent to the MS devs and they added it in without much fuss. The point of this is that make sure you can read them cam and crank sensors that come on the car, or know you can swap something on that the ECU can handle.
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Old 01-08-2019, 05:57 PM
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That's a very useful observation indeed. I am unsure if they will support your given example, but we have checked it on the engine we plan to use. Rumor has it that the company is super helpful with adding stuff like this, have yet to find out.
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Old 01-08-2019, 07:00 PM
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That seems to good to be true. Also curious to hear from those that have used one. Wheres vlad....
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Old 01-08-2019, 07:01 PM
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I have friends that tested these at their shop next state over, didn't really have anything bad to say about it.
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Old 01-09-2019, 04:52 AM
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Having helped a friend tune a Supra on this ECU, I can't say I was impressed, even for the price. The software is a bit of a mess, opening separate little windows withe 4-6 options inside for related settings instead of grouping them in one window. There are bugs everywhere, so as a tuner I'm not confident where I'll hit a brick wall.

Example: we run into a strange issue where we are running out of fuel on a turbo Supra. The car made about 520 crank hp on 550cc injectors, so we though hey, we run out of injector headroom. We swapped in new 1000cc injectors, we still run out of fuel at 7000rpm (100% duty cycle). New pressure regulator, new 450lph pump, new lines, still 100% duty cycle at 7000rpm.

So I begin to get a litle suspicious, and added 20% more fuel in the VE table at 7000rpm. Sure enough, the duty goes to 120% and the fueling goes to 10.0:1 (from 12.0:1 where there was "no more injector duty left"). That set us back a couple of days, and cost the customer about $3000 in parts (injectors, pump, lines, regulator, fittings), labour and dyno time.

The are other little things that got me a little skeptical. Like, the ECU has a builtin wideband controller but you have to measure the sensor's resistance and enter that into the ECU or the controller doesn't work. What? There are more but you get the picture.
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Originally Posted by ninerwfo View Post
The “into to megasquirt thread” mentions that the MS3 basic has 5 inputs with built in pull up resistors - and I was just wondering why it would have so many, while the MS3Pro PnP has just 2 (with no pull ups?)
MS Labs: Plug and Play Megasquirt ECUs for ANY 90-05 Miata (NA, NB1, NB2 w/VVT, MSM), including basemaps to get you started ASAP. PM me or email or details.
For support on MS Labs ECUs: Please email, be sure to include the unit's serial number and include a datalog and your current map.
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Old 01-09-2019, 11:45 AM
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EMU Black?

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Old 01-09-2019, 11:56 AM
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Originally Posted by hi_im_sean View Post
That seems to good to be true. Also curious to hear from those that have used one. Wheres vlad....
It's enough of a burden to fully and properly dial in a car using known, supported, and very commonly used ecu's. Some cars are super finicky and it's a lot of work.
If anyone likes to inflict pain, headaches, and frustration onto themselves in the name of trying something new, well then they should definitely try new ecu's and "blaze the path" for the rest.
Been there, done that, hated it, have the gray hairs to show for it.
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Old 01-09-2019, 02:09 PM
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Vlad you are right; it's enough of a large task already, hence I will be using an MSLabs ECU on the Miata. However, the main selling point of the EMU was native, off-the-box DSG support which is needed for the other project, and we are not aware of any other standalone being able to pull this off.

Dimitris, that's indeed an issue, and things like that scare me. Have you/your friend communicated that with them? Did they do anything to iron this out?
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Old 01-09-2019, 02:49 PM
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O hai!

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Originally Posted by ninerwfo View Post
The “into to megasquirt thread” mentions that the MS3 basic has 5 inputs with built in pull up resistors - and I was just wondering why it would have so many, while the MS3Pro PnP has just 2 (with no pull ups?)
MS Labs: Plug and Play Megasquirt ECUs for ANY 90-05 Miata (NA, NB1, NB2 w/VVT, MSM), including basemaps to get you started ASAP. PM me or email or details.
For support on MS Labs ECUs: Please email, be sure to include the unit's serial number and include a datalog and your current map.
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