Originally Posted by irwin
didnt they make an slk 500??? and wouldnt this be a much easier upgrade?
I haven't heard of a R170 chassis SLK ever having a V8. The R171 which is different than our cars did have a V8. I have looked at these to see what parts might make my job easier but haven't found anything that I need. I have all the conversion parts either in hand or am waiting for parts orders to arrive.
The toughest part of this is not really mechanical but rather the electronics. These cars have an immobilizer system that wants to see the right information from the key, dash and ECU. There is no way I believe to use the V6 ECU. It would be nice if I could as it is matched to the rest of the car. The V8 ECU will need to have the IMMO bypassed, and reprogrammed for the Crossfire. Still a lot unknowns here. Just for grins I called Brabus USA since they do the Startech V8 to see if they would sell me just the modified ECU. The person I talked to was very polite and said he would have to email Germany but didn't think Brabus would be willing to help. If they are willing to sell a modified ECU they will probaly want a rediculous fortune for it. I am starting to network with other hackers than are willing to help me. The reprogramming can be done by my local Benz tech that I mentioned before, but he wants me to research how to get around some of the other issues. Since the IMMO and VIN are embedded on a chip in the ECU, I wonder if I can remove the one from the V6 ECU and solder it into the V8 ECU? Any of you got any ideas?