you really don't need more power, 2350 on 4s is starting to cross the line just a bit, i wouldn't go more then 2200 kv, with a 4074 2200 kv on 4s in the geico, if you aren't hitting the 50 mph mark something is wrong with your set up not the motor. I'm getting 47+ out of a 60 dollar ul1 spec motor. What are your temps like?
I definitely would not put a 3000 kv motor in and expect to go faster, you'll most likely just melt stuff.
you are propping kinda small. x440, and x440/3 are both pretty small for that motor in this hull. The x642 has more pitch then the m445 i'm running so in theory it should be faster.
Where are your batteries at?
http://www.youtube.com/watch?v=3R_KKeU0fLs
you should easily be faster then this. ^^.
those batteries you have may not be enough for the amp draw, do you have a watt meter?
Just watched your last vid. looked pretty good, about as fast as you can expect with the chop
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