Speeduino - Arduino based engine management system

[Franco Cozzo]

Good afternoon all,

Come across a 'DIY' engine management system based on the Arduino platform called 'Speeduino' - that's home grown here in Australia.

Appears to offer basic engine management functions at a pretty low price (Assembled Speeduino board is $160 + Arduino cost) compared to the common aftermarket solutions on the market, it's aimed more towards the hands on DIY crowd.

The v0.4 variation appears to provide 4 injector and 4 ignition outputs, could be used on an 8 cylinder engine for an EFI conversion set up as wasted spark ignition and semi sequential multi point injection (injectors paired).

The v0.4 boards includes the following features:

4 injector channels
4 Ignition outputs
Fully protected input channels for CLT, IAT, TPS and O2
Optional VR conditioner mount on crank and cam inputs
4 medium current spare outputs (Eg Fuel pump, thermo fan etc)
MAP sensor included is the 1.5 Bar boost (0-250kPa) MPX4250
Proto area with multiple analog inputs, flex sensor input and digital IO broken out

Has anyone used this before? Looks like a great cheap and simple solution for people converting older cars to EFI, perfect for our crowd here with project cars.

Advertised as 'open source' as well, uses tuner studio as per Megasquirt.

https://speeduino.com/home/about/features

Notice that they're working on a version with 8 injection and 8 ignition outputs, things like OE connectors (Delphi) etc:



Could be a winner for anyone whose keen on getting their hands dirty or enjoys tinkering with electronics.

[oldel]

All my cars are stock sadly. Don't spend much on them any more. But I've come across it a few times in BMW forums. eg:
https://www.r3vlimited.com/board/for...ild-for-m20b25

Also seen something on reddit (I think), but that was over a year ago when I last looked there, I'm not a regular. But most car groups have speeduino talk in reddit so definitely search there foe more info (but the format sucks so I'm not a user)
https://www.reddit.com/r/ECU_Tuning/...ywj/speeduino/

In short: seems to have a lot of enthusiasm for the budget mazda mx5 and bmw E30 crowd.


More common to find people using Megasquirt in the USA as their 'go to' and many people with BMWs here use US parts and ideas so likewise tend to megasquirt.

I'd love a couple of spare k to do manual trans conversions and haltech EFIs like I did in the 90s with my rotaries when I was cashed up.

[Franco Cozzo]

If I had an older 1980s car again I'd probably give Speeduino a crack over the usual options.

[oldel]

Yeah, if I had a home and some spare money I'd be trying to get a e32/e34 735i/535i and they're just begging for a turbo, as we know from the fastest production 4 door car of the 80s BMW E34 based alpina B10 bi-turbo (E: more power and torque from a turbo 3.4L than the xy gtho, even 30 years ago.)

The M30 loves turbos as much as the barra so I'd have to be looking at aftermarket EFI controller and turboing any M30 BMW I found.

[CFOUR]

mate has run one on a mx5 for a couple of years, car is modified. but not his daily