Ended up with a HB Center Diff... seems to be identical to the HPI one (surprise...)! Spurs go up to 53 which gives alot of room for gearing adjustments :)
Only worry I have is that the housing looks like plastic!? Hope its black anodized (or how you spell that in english) aluminium.
Will construct the mount a bit assymetrical to get the 1717 as low in the Chassis as possible.
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The outrunner direct drive project is my colleagues. Would like to go high voltage / low kv. I suggested this motor:
http://hobbyking.com/hobbyking/store...idProduct=2097 and the okhobby 1/5th ESC... then he could run 40-45 on 6s and 65ish on 9s ;)
He has some pretty good ideas for a transmission "shock absorbtion system".
By the way... wouldn't it be possible to have reverse with a cluth setup? Hmmm but you cant motor brake... right? Not a good idea.