[othello]

For a 6s A123 setup i would recommend the Jazz 80-6-18. I used it in my 9lbs Buggy with 12 cells Nimhs or 4s4p Sony 18650VT. My highest recorded peak was at 120A (my eagletree micropower is speced at 100A max) or 1200 Watt. I removed the heatshrink and put a heatsink on top of the cooling plate because it thermaled during summer. With 6s1p A123 you should be able to see peaks up to 100A @14V. But for MT application i guess you think more of a 2p setup. You will not need a ubec as it has an integrated switching BEC which can be used up to 6s lipo.

I now use a Jazz 55-10-32 with a Neu 1515/2Y (1100kV) with 10s1p A123 in my 11lbs truggy and my highest recorded peaks are at 100A+ -> up to 2.5KW. I also put a small heatsink on the cooling plate eventhough it never thermalled. You will need a ubec with this one.

Both Esc are very reliable. You only need to program it to one of 2 available car modes (forward only or forward with reverse). This is done with your transmitter. I never needed the prog card.

Only one downside: When you go from full throttle to neutral you might notice that your motor will brake for a split second before it starts to freewheel. When you go from full throttle to half throttle the esc seems to slow the motor down to its new level. This can be odd on a high grip surface or when you jump your car.