up the voltage?
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up the voltage?
What speed controller are you using ? I get the feeling the motors will draw some considerable power.
I'm useing two syrens, the single channel version of the sabertooths. And we were running it on a flat car battery, so it's quiet a few volts lower that what were tubing it on, as we are going to use 2 7.2 volt rc battery's in series, so it will be at 14.4 volts, so hopefully it will run better.
Are they the 25A versions ?
Yeh, think they should be enough, with the high current cut out and all.
@ 19.8 V we had the problem Kashei's scorpion XXL started cutting out on the Speed 900 MSR 12-54 combination with 100mm wheels. We solved it with a Sidewinder.
As the copies have a higher current draw, it could be that 25A ain't enough.
On the other hand, if the wheels ain't too grippy, it should limit the power used.
Yeh that's what I was thinking, although I can't afford another controller, so i don't know what I would do if that was a problem.
Those side pods look very well made!
look forward to seeing you guys at the GSL again, we've got to represent Suffolk!
Simplest solution if the speedo's cut out on overcurrent, less V.
Something I think will be needed whatsoever.
Those cheapo's run a lot faster than a Graupner Speed 900. I messured them 11000 rpm @12V
11000/12=900 rpm/v
900*14.4V=12960 rpm
Gearratio 5-1. 2592 rpm on the wheels.
0,125m*pi*2592= 1017m/min=61km/h
How much!? The stats on the seller's page say 6700 rpm no load at 12v!Quote:
Those cheapo's run a lot faster than a Graupner Speed 900. I messured them 11000 rpm @12V
http://www.ebay.co.uk/itm/12-v-ELECT...60160129600452
Well that changes my predicted measurements slightly....