On the hunt for 3 channel ABS racing calibration (trade for Gruppe N Vanos file?)

[JBanzhaf]

Sandman, have you had any luck in tracking down the EPROM dump? I've also been looking into this as of recently. I believe the EPROMs can be soldered into the US Spec 1995 E36 M3 34521138219 ABS control unit. There isn't very much info available online about these "motorsport" EPROMs, and I'm very curious about them. It is a different EPROM to what comes in the US Spec 1995 M3 module, as we have M83C154P EPROMs, and the "motorsport" EPROM is an AN87C51FC. So even with the dump, the chips will also have to be replaced. These EPROMs should be able to be read and written with a TL866-3G or similar, although I have yet to personally test that. This seems like a possible nice upgrade for 3-channel cars without committing to converting to 4-channel and an MK60.

Thanks,
Joel

[jayjaya29]

Interesting, are 96+ US cars compatible or also no?

Any reason not to do a MK60 swap, aside from complexity and cost?

No. 96+ is 4-channel, so also not supported.

MK60 swaps are getting easier with aftermarket solutions.

[samthejam]

3,2L
05	Control unit ABS	3,2L GR.N MK IV	1			34522501347	$3641.95
	3,0L
05	Control unit ABS	3,0L GR.N MK IV	1			34522223706	$7826.91

Just for documentation purposes

[Nate047]

Interesting, are 96+ US cars compatible or also no?

Any reason not to do a MK60 swap, aside from complexity and cost?

[jayjaya29]

There's also this:

https://www.mk-motorsportteile.de/en...ble-for-m3-e36

This will NOT work with the ABS units fitted to USA 1995 M3s, I've contacted them and asked.

[Nate047]

There's also this:

https://www.mk-motorsportteile.de/en/p/abs-motorsport-upgrade-3-channel-suitable-for-m3-e36

[jayjaya29]

Try contacting Wayne at Chipwizards in the UK:

https://chipwizards.co.uk/contact-us/

[Sandman]

I am trying to track down a 34-50-2-483-756 ABS EPROM, which was (I think) the Gruppe N ABS calibration for the 3 channel ABS. Or, as a backup, I would settle for the BIN file, which I can try to write to a spare ABS module. I am sure I had this file, saved securely on a backup drive, but the drive is now so safe that I cannot find it.

In the process of searching for the file, I did find racing Vanos calibration files for the 3.0 Vanos controller (S50B30 with M3.1 DME), so if you fancy a trade, that's an option.