Hello manual transmission

 

Gearbox control unit:

 

A bit of progress. Preparing mechantronic board for soldering, there are tiny aluminium wires connecting pads with motherboard. Those need to be removed as close as possible at pad surface. Also, silicone gel should be removed and degreasing of pads to be able to solder wires later.


After cleaning, a good amount of time needed to do it properly:


Work on gearbox to GCU cable, 26 wires in concentric twist I've done for the first time in my life. 1.8 meter (5.9 feet) long. It turned out quite well I believe.

 

What changes need to be made to the BMW Motherboard. While the CAD was obviously a challenge, I beleive that this step of re-soldering would likely be the most tedious step for others trying to follow as you have done .

 

Are you planning on driving the car in manual mode all of the time?

 

Basically you need to wire all 10 solenoids and sensors to a GCU, OEM motherboard isn't used at all, just pads on sides. There are several ways to do this.
At the end it should look something like this:

 

No, there is an automatic mode too.

 

Do you have to do any tuning for the auto modes?

 

Yes, but it is pretty straight forward, just two simple tables..

 

So is there no throttle input? Just a basic it will shift at XXX rpm regardless of throttle?

 

No, you need PPS value too. PPS = Pedal Possition Sensor.

 

Do you just tap of the OEM pedal?

 

You could, GCU can be configured to accept analog inputs. More elegant soulution is to get data through CAN BUS.

 

Ahhhh

 

Adapter for new gerbox connector is done too.






Three sets ready..







This project is postponed for couple of weeks.

This is the reason

 

Looks good man! Can't wait to see this thing in action.

 

Finally I'm getting back to this project.

Fit like a glove.

 

Added coating at flywheel and connection part:



Wiring 90% done:


And went from Haltech pro plugin to the Elite 2500:



Oh, it should be fun winter..

 

^badass Tom!

Impressive to say the least!

 

Thanks James! As always, I'm doing the best I can.