Owned two euros a '86 500SEC and '90 560SEC euro.
If I were to get a Gen2 euro again, it'd have to be a 86-87 560 ECE version w/ the 4-pin EZL.
I would have peace of mind knowing my car could last for the long term without expensive and hard-to-find 8-pin EZL repairs.
I would do updates to the car for the later 90-91 interior if I needed, but to me, mechanical peace of mind coupled with 300hp ECE trumps all.
Bondavi this won't be a problem soon
Progress on this FrankenCIS & FrankenDPS Kit for KE-Jet has now mastered control of the fuel mapping which now totally tuneable across the whole rev/load range.
The ECU has a lot more functions than just fuel
Mike from Dkubus together with Steve from reanimotion are all over this Bosch system (which by the way is it turns out with a bit of modern technology adapted to it is actually a "very good system")
This assumes a non molested EHA and a good Fuel Head / injector filters are clean / Good POT / no vac leaks / fuel pumps are good / Fuel reg is good / so what is aimed for is the engine is already working fine and tuned correctly as a starting point for the Franken to take over from that point.
It is not designed to mask a poor running engine that needs attention
Next step is working on the ignition mapping and the R&D will be done on that to phase in control of the ignition ( I assume this will eliminate the need for reliance of the EZL for any mapping- and most likely eliminate the need for the outdated EZL altogether)
I have a haltech 2000 which has extensive ignition mapping tuned for a Euro high comp 560 300hp (with the 16/17-24/25 cams as both same profile) and this will most likely be used as a basis reference for them to work from as a starting point.
End result will be a huge leap for the M117 i believe to finally prove how good this engine is in its current form without the need for a full EFI conversion to wake it up