Bryan, unless you are getting a great deal on an EC2, then I would strongly suggest that you go with the EC3.  Not only does it have some additional features, but Tracy has told me they intend to stop producing the old EC2.  They will still support it, but all new productions will be the EC3.  Also as Bob mentioned, I think not having one 37 pin connector but two smaller connectors is an installation advantage myself.

 

Either one will do fine on a Renesis but might as well go with the future.

 

Of course he’s getting a great deal Ed :-)   

 

The O2 and knock sensors for the EC3 make sense.  The O2 would make it possible to have autotune for people who only have an EC3 but not the EM3.  The knock sensor will be really nice for the turbo folks.   I don’t personally see how two small connectors is better than one large one.  The real problem was those sadistic soldered connectors :-)   Bob takes care of that problem for most people, and others can simply replace the connectors with quality crimp pin connectors, then assembly is a breeze. 

 

It seems he’s gone back to having a separate box for the EM3, rather than having everything built into the display like the latest EM2’s were.  Pity, because I thought the integrated unit was a big improvement.  My guess is that this is largely due to the long runs that had to be made by the folks with their engines trailing behind them.   

 

FWIW, I encouraged Bryan to ask about the differences, because I had never heard of the EC3 until I looked at Tracy’s page.  How new are these? Has he actually sold a run of them yet?  No doubt they’ll be in improvement, but maybe not anything significant for most people.  I’m not worried about being able to sell the EC2/EM2 combo for $1000 :-)

 

On a side note, I finally got to meet Richard Sohn today.  He came by to pick through the rotary stuff I have for sale.  It’s funny that I had never met the person who lives the closest to me on the list, but we all know who’s fault that is :-)

 

Cheers,

Rusty