Some more questions... which one?
 

I know I have asked many questions about my buggy conversion, and unfortunately still haven't gotten much progress :mad:1. But right now, I have two options that I am really considering:

1. Hyperion EOS 1210i, LBA10 balancer, MM, 8xl, UBEC, motor heatsink, True-rc 4s2p 8000 pack, pinion = about $612 - $617 including shipping.

2. Hyperion EOS 1210i, LBA10 balancer, 5s2p 8000 pack, wait for MMM or R1MT, Neu 1515 2.5d or 9XL motor depending how much the MMM or R1MT is = about $385 including shipping minus motor/esc.

I am hoping to order the charger/balancer today, and depending which option I choose, I may buy a few more things tonight/tomorrow. The problem is that I ultimately want to run 5s, but I don't want to risk frying the MM, so if I use the MM, I would probably go 4s. Any opinions are greatly appreciated. I am just really eager to get out and drive it, after having it sit on the shelf for so long. This is my only rc right now because I sold my others to fund for this conversion.

Thanks

It would be great if I can hear some opinions tonight before I go ahead and order the charger/balancer. :)

i'd help ya out if i could, but my stuff is in another direction (lehner 1940/7, matched ni-mh packs, dual Ice chargers). although i am in the same boat with trying to figure out what esc to run the lehner with... most say the MM, but i too am curious how 'stupid' my truck can get on 5s, and i'm too afraid to do that with the MM.

here's what i may do: can you start with the MM on 4s, then once the MMM or tekin comes out, move the MM to another truck (or start a new project)? in my case, the MM will be moving to my jato project.

sorry i couldn't help out more... i know first hand this stuff consumes a lot of brain cells in a day figuring out the right choice to make... :026:

I actually never thought of that. Thanks. Did you get your Lehner a while ago? Because I can't seem to find one anywhere...

i just bought it 'new to me' a couple weeks ago, but it's used. the same guy had a new bk 9920, but it was a replacement due to his first one that went bad. now that BK and LMT aren't playing nice together, i decided to go with another esc (even though the BK was a great deal). i'd like to think i'm patient enough to wait for the MMM or R1MT, but i don't think that's gonna happen. :005:

I'm not sure that I understand your question. Your options seem to be either to have a system now, or wait for one. My answer will always be get it now.

The Hyperion charger is as good as or better than others that are available with like options. As for the MM, they are good inexpensive escs and will serve well as a back up when the better ones are released. The Feigao motors are only about $70 or so. In the long run, even if you wind up getting a MMM and Neu later, you've still only spent under $200 to have something now and they will serve as backups or as system for a future project.

As for the battery configuration, you really have to know what you're getting into with a 5S setup. I've run 5S in my truggy with a 9XL and it's just stupid. I run 4S most of the time. In a buggy, I'd say that 5S is too much. I'd stick with a 4S setup.

Of course, what works for me, may not be enough for you. Try out the 4S config first. If you go with a Feigao, go with the 8 or 9XL. If you go with the Neu, go for the 2200kv motor. You cravings for speed and quickness should be satisfied.

Well, I only needed a couple replies, but I think I am already persuaded. :005: I'll be buying the charger/balancer for sure tonight, and hopefully will be buying the rest within the week or two. I'll keep you all updated on the progress. :)

I've only had my neu 1515 2.5d (1700kv) running for about a week so far. I bought it to run in a truggy on 5s (TrueRc 8000mah, haven't gotten to use them yet so I can't say what they're like).
Since the truggy's not quite ready yet I thought I'd try it in my e-maxx (the neu). With 51/20 gearing on 12 and 14 cells it had about the same power and speed as a 7xl geared 51/13 on the same voltage. Except that the feigao would get to mid 50's degrees C (~130F+) or more with a fan and the neu got to 36 C (97F) with no fan and the quark was cooler.
Basically what I'm saying is that the 1515 2.5d seems to work well on 12 and 14 cell therefore should work on 4s, while still being able to run 5s reliably and 6s should be ok for some higher speed stuff, so the one motor can work in a lot of different setups.
Though if your going to use 4s only the 2200kv 1y would give better perfomance, and should be ok for 5s every once and a while.

Thanks, I don't really want to risk having the Neu cog on the Mamba Max, so I'll probably just order the 8xl and the heatsink and hopefully it stay fairly cool.

BTW - I already bought the charger, balancer, and esc.:027: I think tonight I'll be ordering the rest... :027:

RC,

Buy the Feigao 540 "C" Series 8XL. The one with the integrated heatsink and improved bearings/endbells.....if you go Feigao that is.

Pro.

ProCharged5.0, where did you hear they are better bearings?

I read somewhere that the std. series gets 40,000 rpm rated bearings and the 540c series gets 50,000 rpm rated bearings. If I can remember where I got the info I'll post it.

I believe that the C series and smooth can series are the same motor. The C series of motors are nicer in that the integrated cooling fins do help to keep the motor cooler, but the C series has its own problems, such as the end bells falling off.

The XL motor (any of them) can and will display brutish power and are nice motors for the money; but are inefficient. This means that they will run hot. I run a 9XL with a homemade heatsink that completely encapsulates the motor and I can run on a track for 20-30 minutes before the motor begins teetering on the 200*F mark and I have to let the motor cool.

On the TrueRC 8000s:

Be sure do double check the specs and they layout you are looking at. These cells are good, but they are wider than normal batts @ 50mm, ie they will not fit in std trays. 5S 8000 is quite heavy as well. I think mine is ~950g.

For a 4s operation, I would go w/ their 6400packs. These offer me great runtime, ~1hr bashing around, and 20-25min+ hard running. They are also a std size so will fit a bit easier.

5S/8XL is stupid crazy power in my Revo. Can't imagine a buggy on it.... I would go to 4S, and prob even a 9XL for more reliabilty, you will not be diassapointed.

The 9XL is, in my opinion, the best way to go. It doesn't get as hot as quickly as the lower turn motors and the performance is definitely there. When running 5S it is still insane, but to a lesser degree.