What are you running the batteries down to? Over discharging might be the problem.
Help me with my first build: Delta Force Explorer 36 cat.
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Another question: If I run my servo off of a separate set of batteries will I see performance gains out of my setup?
What are the water temperatures? If cold that could be the reason for the packs being so much hotter. As others mentioned you may be running the packs too low. Another contributor could be excessive resistance between the packs and ESC. Long wires, small gauge wires, poor connectors or soldering jobs can increase the stress on the packs without affecting the motor or ESC.
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So one week with this boat and I already want to go faster. However I'm concerned I am already on the edge with my motor and esc. I know the hull can handle more. I'll remind you all of the set up: Leo 4092 1730kv, raider 150 on 5s-6s 45c-70c batteries
I'd like to take it to 7 or 8s ( I already ordered a matching 2s battery for my 5s battery). But when I look at the specs for my motor it says max Volts 20, max amps 140. So at 6s I am already pushing it. If I put a 7s in it will I blow it up?
A 4092 is about the biggest motor I could put in this hull due to height restrictions. Wanting to stay with leopard...if I look at my options for 8s the highest kv that can handle 8s is 1050kv. It says max volts are 33 and max amps are 102. So I could throw this motor in there but I'm struggling with buying a motor with that low of a kv rating. Maybe it's the rookie in me but I feel like that will not really make the boat faster. Would I have to prop up to see speed gains with a change in motors? My prop options seem limited beyond the one I'm currently using, the 648. Also, I would still like to be able to run 6s and have fast speeds. 6s on 1050kv is 24,000 Rpms. Is that enough? It's still just 32,000 Rpms on 8s.
Some expert help would really go along way here and save me money I'm sure...Last edited by RuntheraceAMC; 10-22-2016, 07:23 PM.Comment
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Keep following amp ratings and your setup will eventually blow up. Also why are you fixated on rpm? The prop is what does the work. Lower kv can spin a larger prop at the same voltage and current as a higher kv with a smaller prop. The difference is that the larger prop will have a greater efficiency which equates to more speed. Are you sure that you have maxed out the running attitude (cg, angle, height, prop choice)?Comment
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Not sure what you meant by, "keep following amp ratings and my your set up will eventually blow up". If I followed the ratings I'll blow it up?
I am not sur I've maxed out my set up. It's still running in 95-110 degree range on my 648 even on 6s. I do have a lot of cooling going to the motor and esc and water temps are in the low 50's in PA this time of year so maybe those numbers are low because of that and I am pushing the set up more than I think. I'll order a 50 and 52 mm CNC prop.
I do need to play a bit more with the strut angle. I think I have the COG right or slightly too far to the stern.
Haven't messed with the height at all. I did on my last cat and really never understood the pros and cons of raising or lowering the prop. I currently have it at the same height as the lowest part of the sponsons.Comment
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A manufacturer might claim 100 amps max, but that doesn't account for spikes that can often times double what the rating says.
Have any video? You must be hauling right now.Comment
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Not quite sure why I'm not getting them to embed here but here are the videos.Comment
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