[PSIG]

Good afternoon, has anyone already changed the injection phase angle, looking for savings and power? my graph is flat 355* I'm running m50b25tu turbo 0.6 bar, thanks

Yes, injector close angle can have a substantial effect. I have not tuned it on an M50b25tu specifically, but injection angle should be tested on any installation for best response. Results are typically odd, in that you may find one angle area (angles change with load and speed), that produces minimum MAP (indicating peak burn efficiency). However, it will typically show a different angle for minimum fuel consumption, or Lambda/AFR, temperatures, etc. You can set the angles appropriately for how you are using the engine and which factor is more important for that area of operation.

Note that all injectors use the same angle in current code. If you need individual-cylinder close angles to tweak specific cylinders for specific effects (e.g., early detonation in one cylinder), older code used per-cylinder (per-channel) up to 4. This is unlikely. However, to avoid using it inappropriately, e.g., a cylinder simply needs more or less fuel to bring it in-line (balancing Lambda), individual-cylinder fuel trim (ICFT) is specific for that purpose. Hope that helps.

[KodokDisko]

I honestly have no idea what it takes to run the automatics. I don't do crappy slushboxes. You have to do your own study. If you find out it takes some modifications to the board to make those work, I can add those changes in.

I'll do some digging and get back to you!

Hi ise,
I'd really like to know the updates because right now I'm gathering info how-to's since CMIIW the TCU still depends on the ECU
Really appreciate your response

Thanks

[assane]

Hi, am I the only one who has a problem with the latest firmware? On 2022.07 PR2 the car runs fine, but after switching to 2024.02 the car floods and does not run smoothly.

Ok, there was no topic. I forgot to change the injectors to 6 and the ignition to 3 in the software. My mistake ; x

[ise1844]

I honestly have no idea what it takes to run the automatics. I don't do crappy slushboxes. You have to do your own study. If you find out it takes some modifications to the board to make those work, I can add those changes in.

I'll do some digging and get back to you!

Hi ise,
I'd really like to know the updates because right now I'm gathering info how-to's since CMIIW the TCU still depends on the ECU
Really appreciate your response

Thanks

Hi Kodok,

Sorry to report that I ended up focusing on other things and never got round to investigating the gearbox comms.

However, I have now encountered two people who used an EMU Classic ECU on an M50 powered E34 with a 5hp19. With only a PNP harness adapter and no additional programming, the gearbox continued to function as per normal.

[pazi88]

It could be that it works just fine with only traditional RPM signal from ECU.

I'm myself in 8HP world currently, so no further info about these older slushboxes.

[KodokDisko]

It could be that it works just fine with only traditional RPM signal from ECU.

I'm myself in 8HP world currently, so no further info about these older slushboxes.

So in other words, I could be using the pnp board and the trans will work perfectly fine?
How about the shifting? Do I need to setting the flat shift feature

[ise1844]

Hi all.

Encountering some weird behaviour with a v2.3 board.

One ECU is wired into an e34 M50NV. ECU stays on after turning off ignition.
Pin 27 at ECU (or pin 85 on main relay) reads 3.2V.

I have already established that a newer main relay will temporarily issue because they switch off much sooner than the current one that needs to go to 2.4V before the coil deactivates.
I have another ECU on the bench. Upon providing 12v to Pin 26 (constant 12v) I measured a rising voltage up to 2.8V at Pin 27 and then finally it quickly settled to 0.8V and it remains there.

0.8V is much closer to what I expected to see, but the ECU that is in the car will always stay at 3.2V.
Am I missing something obvious?

Thanks

[dkauffman]

Hi, I have an E36 coupe with an M50B25TU engine, it was repaired with pistons, connecting rods, and crankshaft from the M3 3.2 cc, it also has an ITB from the M3. I have a rev 2.3 plate, I have problems with cold starting and also with hot starting, the ballast drags the starter motor, I want to know if with the configuration I have, the initial advance should be 18 degrees, and if the firing angle should be 276 as it appears in the last pazzi tune, thanks.

[E30M50]

Does anyone know a website still selling the 2.3 PCB's? Looking to start a conversion on my non vanos M50 swapped E30, but the only place that appears to still be selling them is PCBWay. They are pretty pricey and am unsure of the credibility since it didn't come from Pazzi, but if someone has purchased from them before I will pull the trigger there. I'll attach the link for anyone interested, but please let me know if there's another place to buy.


https://www.pcbway.com/project/sharepro ... c51f9.html

[DStage]

Does anyone know a website still selling the 2.3 PCB's? Looking to start a conversion on my non vanos M50 swapped E30, but the only place that appears to still be selling them is PCBWay.

I've just used github link on the first page of this thread and moved up a bit as it was in an old file structure no longer there. Then followed the new folder structure: https://github.com/pazi88/Speeduino-M5x ... /Rev%202.3
Looks to me like you have gerbers available meaning you can order it wherever you want including PCBWay or JLCPCB, BOMs are also available.