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RC-Monster RC8T
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Posts: 2,554
Join Date: Jan 2008
Location: Syracuse, New York (Camillus)
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05.18.2009, 12:04 AM
6s an the higher voltage geared for the same speed is going to draw less current
RC-Monster RC8T 1515 2.5D/MMM/5s RC-M 4500mah
SC10 MMPro 13.5T 2s NeuEnery 5000mah
RC18T Mamba 25/5400kv 2s lipo + 6s NiMh
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Check out my huge box!
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Posts: 11,935
Join Date: Aug 2007
Location: Slidell, LA
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05.18.2009, 12:17 AM
Ok, since I have a muggy, and run 6s, and run a MMM maybe I can give you some info.
I run a 1600kv hacker xl motor, similar in power output to a 1515. I am currently geared for mid 40s. My system will get the motor up to about 150f, and will get the fan on the MMM running to. I use flightpower 4500 30c 6s batts and they will get up to 130f. All that tells me is that my setup is working the batts hard. Loots of draw on startup, and lots to put back in under heavy braking. I have a feeling you may stop cooking escs if you step up to a better lipo. Something ;ike a 5000 30c 6s pack. If you still want 50+ mph 6s is the way to go, as it will allow lower gearing than 5s and help with voltage spikes under load.
My buddy runs a savage (not light) with the 2200 combo on 5s and it runs cool and does well, even geared up at 50. We geared it back down as it was a handful.
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RC-Monster just don't get it
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Posts: 147
Join Date: Mar 2008
Location: Central NJ
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05.18.2009, 12:25 AM
Quote:
Originally Posted by lincpimp
Ok, since I have a muggy, and run 6s, and run a MMM maybe I can give you some info.
I run a 1600kv hacker xl motor, similar in power output to a 1515. I am currently geared for mid 40s. My system will get the motor up to about 150f, and will get the fan on the MMM running to. I use flightpower 4500 30c 6s batts and they will get up to 130f. All that tells me is that my setup is working the batts hard. Loots of draw on startup, and lots to put back in under heavy braking. I have a feeling you may stop cooking escs if you step up to a better lipo. Something ;ike a 5000 30c 6s pack. If you still want 50+ mph 6s is the way to go, as it will allow lower gearing than 5s and help with voltage spikes under load.
My buddy runs a savage (not light) with the 2200 combo on 5s and it runs cool and does well, even geared up at 50. We geared it back down as it was a handful.
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What the hell took you so long dude?? I always look for your responses! I guess people are right, and I should step the battery up - zippy has a 5000 6S 30C, so I'll get that. However, why is it that battery temps have always been good for me, depsite the low C rating? Is it because I have punch control set way high (or was it low - just so that I can only pull a wheelie from a hard start) and brake power at only like 50%, or is the C rating very conservative on this enerland based pack??
Also, while I like the idea of 6S, as I believe it's better to push the truck with voltage instead of current (which may be completely wrong), is 6S killing ESC's ya think? Is 5S safer for it, despite the rating?
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KillaHurtz
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Posts: 2,958
Join Date: Apr 2006
Location: Bucks Co, PA
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05.18.2009, 12:53 AM
Quote:
Originally Posted by mk351e
What the hell took you so long dude?? I always look for your responses! I guess people are right, and I should step the battery up - zippy has a 5000 6S 30C, so I'll get that. However, why is it that battery temps have always been good for me, depsite the low C rating? Is it because I have punch control set way high (or was it low - just so that I can only pull a wheelie from a hard start) and brake power at only like 50%, or is the C rating very conservative on this enerland based pack??
Also, while I like the idea of 6S, as I believe it's better to push the truck with voltage instead of current (which may be completely wrong), is 6S killing ESC's ya think? Is 5S safer for it, despite the rating?
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Where in NJ are you? There are tons of dudes around there, and perhaps someone can look at it in person. Even hook up an eagletree and get some good info instead of making a bunch of guesses.
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RC-Monster just don't get it
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Posts: 147
Join Date: Mar 2008
Location: Central NJ
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05.18.2009, 12:58 AM
Quote:
Originally Posted by Finnster
Where in NJ are you? There are tons of dudes around there, and perhaps someone can look at it in person. Even hook up an eagletree and get some good info instead of making a bunch of guesses.
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I'm in Old Bridge and willing to drive some at this point!
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Check out my huge box!
Offline
Posts: 11,935
Join Date: Aug 2007
Location: Slidell, LA
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05.18.2009, 01:34 AM
Quote:
Originally Posted by mk351e
What the hell took you so long dude?? I always look for your responses! I guess people are right, and I should step the battery up - zippy has a 5000 6S 30C, so I'll get that. However, why is it that battery temps have always been good for me, depsite the low C rating? Is it because I have punch control set way high (or was it low - just so that I can only pull a wheelie from a hard start) and brake power at only like 50%, or is the C rating very conservative on this enerland based pack??
Also, while I like the idea of 6S, as I believe it's better to push the truck with voltage instead of current (which may be completely wrong), is 6S killing ESC's ya think? Is 5S safer for it, despite the rating?
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I would go for the battery you suggested. It is about the cheapest way to do some swapping. Higher voltage is always better. Now do you run the truck at full throttle all of the time, or do you spend alot of time at partial throttle?
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RC-Monster just don't get it
Offline
Posts: 147
Join Date: Mar 2008
Location: Central NJ
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05.18.2009, 08:58 AM
Quote:
Originally Posted by lincpimp
I would go for the battery you suggested. It is about the cheapest way to do some swapping. Higher voltage is always better. Now do you run the truck at full throttle all of the time, or do you spend alot of time at partial throttle?
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mostly WOT in parking lots. I admit, I can't get enough of it; watching this truck go that fast is like crack! However, I do kind of want to avoid going to the 1521 if I can; at this point if everyone agress I need to lower the speed then I'll have to deal with it I guess, but the easiest thing to do is go Zippy 6S, RX8/T8 combo, so if it means lowering speed, then ok.
Here why I don't want a 1521: I have to seal the can, grind the shaft, wait a while to get it, and it will be the most expensive option. If it really will achieve something, then I'll do it, but the tekin combo is easier and cheaper.
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