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For discussion of Speeduino compatible boards designed / built by other members of the forum and for guidance around making such a board
By pazi88
MegaTUN wrote:
Mon May 13, 2019 7:40 pm
Good day, tell me how to configure HC-05 to work! I can't understand. Thanks in advance for the answer. ;)
Yes wiki has the answer fo that. And it looks like I somehow messed up the D1 which is for bluetooth so it needs to flipped to make usb work with bluetooth module plugged in :oops:
By Mash
Hi Pazi, Do you know what would be required to get an m54 engine running with this?
Do you know if an Siemens ms43 case/connector and loom from an e46 can be used?

Thanks, Ash.
By pazi88
Mash wrote:
Thu Jul 11, 2019 7:48 pm
Hi Pazi, Do you know what would be required to get an m54 engine running with this?
Do you know if an Siemens ms43 case/connector and loom from an e46 can be used?

Thanks, Ash.
Swap the wiring to m52 wiring and it will work. You of course need to change to m52/m50 thorttle body and leave out some of the nice stuff that m54 has. And preferably use US model wiring that has rear mounted CPS. Or use the rear CPS conversion kit for m52.

I'm currently designing m52tu/m54 PnP speeduino, but because if E-thorttle and other stuff it will be many months before that is ready. And it will be SMD so not that DIY friendly.
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By exvils
So, on Friday started hillclimb race day, car was on Friday on stock ecu (with MAF/cps/lambda) but did not had power and other racers told my driver that it sounded like it was on 4cyls. On Saturday there was qualification day, at 1st round car drove 4.04min lap with stock ecu, driver than swaped stock ecu for speeduino (disconnected maf/cps/lambdas) and car drove 1st 500meter of race like it was back with full power, then lost power (coils) for rest of track, still went 4 sec faster. . I came to race after this and started investigating what happened. Coils on cylinder 1 and 6 melted, also i think cyl nr.2 (and maybe 5) wasnt working (but coils were allright), so i opened case and found this :lol:
Any ideas what happened? Coil dwell was setup at 2.0ms. It was working for past 3 weeks, even broke LSD 2days before race while tunning at local airport. Tho i dont have any logs from race when it broke.
By pazi88
Sounds for me like one or two of the stock coils were bad=shorted. They quite often do that when old and crusty. Stock ecu is quite clever guy and has current sensing for that situation. And if needed it cuts out the failed coil(s). The speeduino doesn't have that kind of cleverness and it drives the coils no matter what happens. So in case of shorted coil, it normally leads to total destruction of the coil(s) and driver(s).
By pazi88
This PCB seems to be quite robust one. I have few videos here testing in my car:
https://drive.google.com/open?id=10Giti ... XSqksCDfC5
https://drive.google.com/open?id=10Jaio ... ZqTSkFQp_A

Here is dyno from another e30 making 600hp with the m52 PnP speeduino:
https://drive.google.com/open?id=10Bf2W ... ejzcGLc0Fk

And same car doing burnouts:
https://drive.google.com/open?id=1yln_M ... Ml2t7pFPW7

I also need to warn you guys here too about not to use fake components from eBay/aliexpress. Those do not work! Especially fake ignition drivers and injector drivers do not work. I have needed to help debug too many non working PCB's because of those. It's just waste of everyones time and money to get fake components.

On left are genuine. On right are fake ones.
User avatar
By Raku
best coil drivers to use is probably bosch bip373 driver.they have overcurrent and overtemp protections. unfortunately expensive and quite hard to comeby .
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