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GRAUPNER 600BB TURBO MOTOR

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GRAUPNER 600BB TURBO MOTOR

Old 06-07-2004, 02:11 AM
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nitroarcher
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Default GRAUPNER 600BB TURBO MOTOR

Is this motor any good, am only running a 25amp ESC, this will push it to the limit i think, feedback would be appreciated
Old 06-07-2004, 10:45 AM
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Default RE: GRAUPNER 600BB TURBO MOTOR

Watercool your esc, start with a small prop, work your way up and see what you can get away with.

Regards, Jan.
Old 06-07-2004, 11:59 PM
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JBoss
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Default RE: GRAUPNER 600BB TURBO MOTOR

Hi,
I just did an amp test for a 700BB Graupner. Direct Drive with a 1 1/2 " 2 blade prop and a 2" 3 blade. Running 8 cell NiMh , I only hit 13 amps max holding boat static. Cant Imagine you will ever come close to 25 amps unless you run 12 cells or better

JBoss
Old 06-08-2004, 01:50 AM
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Default RE: GRAUPNER 600BB TURBO MOTOR

am only running a 7 cell battery pack, i should be okay then
Old 06-08-2004, 06:50 AM
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Default RE: GRAUPNER 600BB TURBO MOTOR

In my mono1 I run a 600 motor on 7 cells GP3300, 37,5K prop, runtime about 8 minutes.

If I apply the formula: 60 x A, divided by the runtime in minutes, I get (60 x 3,3) : 8 = 24,75 Ah current in 8 minutes.

My esc is a Jeti JES 30 which stays cold.

I run the same esc watercooled in my 12cells, 700 Neodym, 45K prop, Mono 2, and it performs very nice for three years now, in this boat I draw about 25-28 Ah over 7 minutes runtime.

Regards, Jan.

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