Although apples and oranges.....my bikes layout is very similar to what Jeff described. Controller - Curtis 400 amp that does in fact deliver rated amps for say less than 3 seconds when accelerating from a stop up a steep hill. The only attempt to mitigate heat was to bolt the controller to a large 1/2" thick aluminum plate. Although this is in fact a heat sink it is not very efficient (e.g. no fins no real air flow because it is mounted behind the controller). the controller is mounted in front of the top front most battery out in the air flow under the front fairing. Although the controller is in the wind the heat sink itself is not. Motor - mine is a nice fat and heavy ADC which dissipates heat well at least in part due to its mass. It is mounted behind (out of the air flow) the middle row, rear most battery where the original transmission final drive was located. Same place as Jeff's. The motor rarely (less than 10 percent of the time) in normal (spirited) riding on a 90 degree day gets more than warm to the touch. Mike Bachand Denver Electric Vehicle Council (DEVC) - Colorado Chapter of the EAA 1994 Kawasaki Ninja EV
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