DM Hi Volt
Download DM HV 
user manual 
DM Hi Volt (Dragmaster Hi Volt) was designed to cover the current RC drag association limit of 20 cells. DM HV will operate from 10 to 30 cells at 90 Amps continuous. Why persist with slow, bulky and unreliable microswitches? With a peak current rating of 1680 Amps this speed control should give you the drag racing edge.
Specs
Dimensions
30 x 28 x 13 mm.
Weight
~7g without leads
Rating
15-45Vdc, 120 Amp (10 seconds)
On Resistance 1.2 mW or 0.0012W
Brake Resistance
2.4 mW
or 0.0024W
Max.
current
420 Amp continuous, 1680
peak (mosfet spec.)
Tested
continuous current
90 Amps
Suitable
Motor
Any
BEC
radio connection
Nil, Requires separate battery
PWM
frequency
4 kHz fixed
Throttle
Fully variable from 12% to full
Ramping
Adjustable 0 to 0.6 seconds (8
steps)
Brake
Fully variable from Initial Brake
to Max
Initial
Brake
Adjustable 0 - 50% (8 steps)
Maximum mosfet temp. 60°C
Price
Straight or right angled lead exit AUD $175 + postage.