russian

This board was designed for an OBD1 Miata pinout, so this 1994 PnPish prototype has less wiring clutter:

russian

Does this look like a 2001-2005 miata connector? These are available new so a board could be made for that connector. 1123038-2 Product Details - TE

russian

We are trying to start another Miata and there is this scary sound and then we kill it. We've got it twice already, and switched to stock ECU since - the engine runs perfectly on stock ECU without the sound. What is it?

Here is the youtube:

EO2K

iTrader: (37)

Hard to tell from the video, but is that belt squeal? Like maybe the alternator is kicking up the load trying to charge after the engine starts?

russian

russian

Has been a while since the last update, life was a bit in the way and then racing and wrenching etc.

Anyway

russian

Hardware design is good enough - recently got a second batch of same rev 0.4 assembled in China:

aidandj

iTrader: (5)

How's your experience been getting things assembled there. Who did you use, good QC? Etc? Feel free to PM me.

stefanst

iTrader: (1)

Where can I find your schematics?

russian

https://svn.code.sf.net/p/rusefi/cod...are/frankenso/
https://svn.code.sf.net/p/rusefi/cod..._schematic.pdf
Manual:Hardware Frankenso board - rusEfi

stefanst

iTrader: (1)

Awesome stuff.
That power supply looks like it can handle just about anything a Miata alternator can throw at it.

TPS on Inp5 looks like it's missing a connection from TPS to opamp input.

russian

I am the software guy, I'll pass the glitch note to the hardware guy
rusefi.com ? View topic - Frankenso - ECU shield compatible with OEM case

russian

Test mule progress

stefanst

iTrader: (1)

Nickname: the Cagey Mule

russian

got a PM asking where is all this at the moment.

This ECU project is somewhat stalled in beta version: the hardware design is pretty settled and looks good, software is still lacking a bit but kind-of-good-enough, but no one with advanced car & tuning experienced has played with this yet to really test it. Until someone who would really be able to evaluate it tries it, I am in the dark in terms of what is missing to make the last steps towards having something useful.

I have a prototyping shop assembling these boards for us, a bunch of people got these but troubleshooting this is really requiring some advanced skills.

stefanst

iTrader: (1)

If cost is not too crazy (which I assume it isn't), I'll buy a board and try it out on my '99 turbo. It's a fairly well running and reliable double-duty driver/track car.

I'm not too far away from Jersey City- working in the Princeton area.

russian

Are you Levittown, PA? That's just an hour from me!

stefanst

iTrader: (1)

Indeed. PM me.

stefanst

iTrader: (1)

Just to keep this updated: I got my frankenso and am in the process of making sure, everything works OK. I had it run successfully on the Jimstim today, so it looks like it may actually be able to run an engine.
The firmware already has a lot of basic options, but of course it's no Megasquirt just yet. However, if things go OK, I may be selling an MS3X soon

I also witnessed a frankenso (rusefi) successfully running a Miata engine transplanted into the #33 Festiva that everybody is afraid of in LeMons racing. It was performing really well. I got to drive the car too (Up and down a REALLY long driveway). Woohoo!

So kudos to the rusefi team. I definitely see a lot of potential here.

90civichhb

iTrader: (5)

Very cool thread to stumble upon. More options is always a good thing for consumers. I am not at all an advanced user and can really offer nothing in advancing this project outside of my moral support and attaboys. Great work, mostly commenting for the sub.