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Old Feb 13, 2013, 12:11 PM
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Originally Posted by Bigster View Post
I finally got my 4315-714 bolted up with a 15x6 Xoar and the ICE was claiming ~80A peak (with a storage charged battery). I didn't have the connectors for my wattmeter yet, but holy cow, it nearly dragged me across the room!
Yeah. You'll love this. It's like a sling shot on takeoff. Kind of stupid vertical power, really.
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Old Feb 13, 2013, 12:12 PM
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Originally Posted by DenverJayhawk View Post
sounds low on the amp draw with that setup. I'm closer to 90amps with the same setup but a 15x10 prop.
Your 15x10 prop numbers make sense. I think with a 15x8 you'd get around 80-85.
Old Feb 13, 2013, 12:12 PM
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Originally Posted by DenverJayhawk View Post
Yeah. You'll love this. It's like a sling shot on takeoff. Kind of stupid vertical power, really.
Stupid indeed but MAN I love it.
Old Feb 13, 2013, 12:13 PM
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Originally Posted by DenverJayhawk View Post
i wouldn't trust a 75 amp esc with that motor on 4S. You'll definitely peak over 75amps given my experience with similar equipment.
A few people have been telling me that, but the data I'm getting isn't confirming it. I have a buddy I fly with who has the same setup, and his results are very similar to mine. I'll probably swap to a 100 just to be safe though.
Old Feb 13, 2013, 12:13 PM
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Originally Posted by turnerm View Post
Your 15x10 prop numbers make sense. I think with a 15x8 you'd get around 80-85.
that makes sense. I should try a 15x8 sometime. I propped up for the elevation where i fly, which is generally about 5300-6000 ft.
Old Feb 13, 2013, 12:15 PM
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Originally Posted by timlake View Post
A few people have been telling me that, but the data I'm getting isn't confirming it. I have a buddy I fly with who has the same setup, and his results are very similar to mine. I'll probably swap to a 100 just to be safe though.
well, if your watt meter is telling you that, then give it a go. You should be safe in theory.
Old Feb 13, 2013, 12:16 PM
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Originally Posted by DenverJayhawk View Post
maybe your throttle end points in the radio are limiting the range?
I've never messed with that... Are the default settings not good?
Old Feb 13, 2013, 12:21 PM
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Originally Posted by timlake View Post
I've never messed with that... Are the default settings not good?
At WOT you should see a red light flicker on your ESC. The red light indicates full throttle has been reached by the ESC. I dont believe you can change much on your throttle with a DX6.
Old Feb 13, 2013, 12:22 PM
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Originally Posted by DenverJayhawk View Post
that makes sense. I should try a 15x8 sometime. I propped up for the elevation where i fly, which is generally about 5300-6000 ft.
If you're not pulling too many amps with the 15x10 then I'd just stick with that. I'm guessing you might be disappointed with the 15x8 at your altitude.
Old Feb 13, 2013, 12:31 PM
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At WOT you should see a red light flicker on your ESC. The red light indicates full throttle has been reached by the ESC. I dont believe you can change much on your throttle with a DX6.
I think the logged data also shows a "100" in the "power out" column when the ESC registers full throttle. Am I reading that right?

I'm also noticing a temporary 3v dip in voltage when I go from 0 to 100 on the throttle. Is this normal, or is my battery about to become a paperweight?
Old Feb 13, 2013, 12:39 PM
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Originally Posted by timlake View Post
I've never messed with that... Are the default settings not good?
my radio had them defaulted at 100 and 100. I generally change the end points using Castle's instructions.
Old Feb 13, 2013, 12:51 PM
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Originally Posted by DenverJayhawk View Post
my radio had them defaulted at 100 and 100. I generally change the end points using Castle's instructions.
+1. Setup fixed end points per their instructions.
Old Feb 13, 2013, 01:51 PM
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Originally Posted by timlake View Post
I think the logged data also shows a "100" in the "power out" column when the ESC registers full throttle. Am I reading that right?

I'm also noticing a temporary 3v dip in voltage when I go from 0 to 100 on the throttle. Is this normal, or is my battery about to become a paperweight?
A higher c rated battery helps this
Old Feb 13, 2013, 03:47 PM
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Originally Posted by timlake View Post
Wow... I wonder why I'm getting such different results? What kind of battery are you using?
A larger ESC will usually give you more power due to it having a lower internal resistance, and also, they usually have larger wires, so again lower resistance...

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Old Feb 13, 2013, 03:50 PM
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Originally Posted by Letzrock View Post
At WOT you should see a red light flicker on your ESC. The red light indicates full throttle has been reached by the ESC. I dont believe you can change much on your throttle with a DX6.
He has end point adjustment, and that is what is needed to set up fixed end points. And yes, Fixed end points usually works best...

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