RX8 or MMM combo?

Originally Posted by Unsullied_Spy

I'm building up another Hyper 7 (slowly but surely) but I don't know which powerplant I want to put in it. Most everything I bash with uses a MedUsa motor but I feel like doing something different for this build. I've already got a MMM that I run in my Muggy and it's a good ESC and the 2650 combo would be good for my use, but I'm tempted to try out the RX8 combo since I already have the MMM. I don't like how short the warranty is, I don't care for sensored motors, and it costs quite a bit more than a MMM combo but it sure is tempting to try one out. I'm building this one to be an offroad-only basher (my TQ is onroad, so the PCR will be offroad) and all I really need is enough power to bash with and stay cool. I like my stuff overpowered but I think with this I'll take a more reasonable approach so it'll be easier to bash.

Having used both the rx8 and the MMM/Neu now, I can say without question that the rx8 is leagues better. The throttle control is just beyond belief. The MMM is smooth, but the rx8 has ZERO cogging from a standstill. You could go rock crawling with this system. It is the best of both worlds. The MMM low power start up isn't even comparable to the smoothness.

The case on the rx8 is way more durable too. You can screw the case down to a mounting plate and it doesn't need zip ties because the case is held together with four screws in very good plastic, not the cheapo plastic tabs like the MMM.

The motors are absolutely top notch and I think a tad more powerful than the Neus. The solder post prevent the wearing out of the windings that occurs so often on Neus, not to mention direct soldering so you don't have to worry about the bullet plugs coming undone. The system runs cool too.

Tekin has absolutely done their homework on this ESC and Motor and all I can say is that they have raised the bar to a new level.

Not to bash the MMM, as I have owned five of them along with countless variations of Neu motors, but the Tekin takes the best off it all and puts it in one package. The MMM/Neu setup is great, but I think they are going to have to do a few tweaks to put it on the same level as the Tekin (particularly around the case design).

[Unsullied_Spy]

I like the mounting of the RX8, that's for sure. Every other ESC I have (aside from my boats) is zip-tied in. I don't mind zip-ties though, they are a cheap and reliable mounting option that also make it easy to remove.

People talk about solder posts like they're the golden egg, but I really don't see the point. With motors like my MedUsa motors where the windings are coming out the can I can see why it would be good, but the CC Neu motors have 100% of the windings inside the can, the wires are just normal wires and don't need any soldering (plug n' play). I haven't had an issue with the bullet connectors on my MMMs, but if I buy an RX8 and need to remove it or the motor from my Buggy for whatever reason does this mean I'll have to de-solder them each time unless I want to remove them both?

[hootie7159]

I just got my rx8 yesterday and went out to prairie city today and this system kicks ass ..blah..blah..blah..etc..etc..etc....you all get the point however, the things that i really like the most about it is the ease of track side programming...it has these leds with abbreviations next to them to let you know where you are in the programming mode/the ability to take the fan out without taking the case apart.... and i also like the smoothness or sensorless as well...i used to run a CC/CC NEU 2200kv combo in my rc8t on 4s and now i've swapped it with the rx8 w/1700 truggy motor on 5s and in all honestly...yes its smoother due to sensorless but you won't see the big difference IMOH unless your cruising at less than 2-5mph on the track...but then again, my MMM/CC NEU combo never had an issue with cogging even with stabbing the throttle (in my rc8t on 4s).....sooooo i see the tekin system as just another option in the world of 1/8th scale conversion and (i believe someone already mentioned this) we can call this system successful yet until its been around for at least a month......i personally don't do ridiculous speed runs but I know a bunch of you guys do.....so in my last and final honest opinion, the MMM/NEU=bashers.....rx8=racers.....but we still have to wait until castle comes out with the 1800kv motor :)


oh yeah...and i soldered on bullet connectors b/c i hate solder posts...

[TexasSP]

Originally Posted by hootie7159

oh yeah...and i soldered on bullet connectors b/c i hate solder posts...

I prefer the bullet connectors too. Soldering is cleaner, however for ease of use and practicality, bullet connectors win.

I don't have anything against the RX8, but for my uses I can't see paying the price difference. The MMM does everything I need and CC has excellent service to boot. While the RX8 may be smoother, I have never had a complaint about the smoothness of my MMM. I would like to hear about how smooth the startup is without the sensored motors. Especially on some 6 pole motors.

[Unsullied_Spy]

That sounds good. I have personally never had a problem with the CC Tx programming. It's a TON easier than my 2 HobbyWing ESCs and a bit easier than my MGM but I don't hear anyone complaining about those. Free CC Link (I already have 2, so that's not a big deal) is nice and the programming options are very nice (hopefully we'll see Phoenix ICE features in the MMMs). The RX8 sounds like a nice ESC but, as you said, it sounds like it's more of a racer's thing. The MMM is smooth enough at throttle much lower than I ever use and once you're rolling it's 10x smoother than my MGM.

Can you get a plug for the sensor port on the Tekin motors? In the future I'd like to run 5s and I think the 1700KV motor is just what the doctor ordered for 5s in a Buggy. Right now I only have pairs of 2s packs that I run in series for 4s so the CC 2650 would be perfect for that but in the future I'd like to up the voltage.

[e-mike]

Originally Posted by TexasSP

I would like to hear about how smooth the startup on the rx8 without the sensored motors. Especially on some 6 pole motors.

curious to see that me too...if the mmm is smoother on the startup without sensor VS the rx8 we can imagne how smooth will be a mmm sensored or the mm pro

[TexasSP]

Originally Posted by e-mike

if the mmm is smoother on the startup without sensor VS the rx8 we can imagne how smooth will be a mmm sensored or the mm pro

Those were my thoughts too.

[Aceldama]

Why is the MMM a better basher system than the RX8?

[_paralyzed_]

Originally Posted by Aceldama

Why is the MMM a better basher system than the RX8?

its cheaper. bashers bash, no need for fancy bling or sensors. i do want the tekin system though, just for the cool factor. tekin was the shit in clodbuster days

[Unsullied_Spy]

I'd like an RX8 setup just to test it out and see how it stacks up to the MMM but the inflated pricetag is hard to justify. Everything Tekin is expensive, I was looking at one for my Micro and they wanted $110 for it...

[Aceldama]

So cost is the only reason why the MMM is the better basher system? I guess the HW150A is the best basher system then since it's the cheapest right?

Cost is important. But it doesn't matter if you race or bash, reliability is the most important factor. And personally, running on 6s, the MMM simply doesn't have the right motor option unless you upgrade to a genuine Neu which voids the price advantage.

$330 vs $280 isn't a huge deal, but I'm disappointed that Tekin doesn't include the Hotwire at such a high price.

[SidewaysLS4]

Anyone compare rotor size on those RX8 motors to the CC's? I'm of the opinion that bigger is better for what I want to do, and with the sensor in there, does the RX8 rotor get shorter? Looking for max power here.

Originally Posted by Unsullied_Spy

I'd like an RX8 setup just to test it out and see how it stacks up to the MMM but the inflated pricetag is hard to justify. Everything Tekin is expensive, I was looking at one for my Micro and they wanted $110 for it...

felt the same way until I ponied up for the R1 Pro vs. getting another MM.


Tekin is more expensive for a reason: they got some good shit.


my MMM came out of the upper casing during a race session and some of the circuit board thingies got crushed by the static lower case.

Promptly took the R1 Pro out of my onroad set-up and set it up for my truggy (X1-CRT). Just yesterday she got her first full test.

20mins of running hard in about 95deg weather and she didn't even hiccup. was using a 3S NueEnergy 5000mAh, R1 Pro and a Neu 1515/1.5D/F with 11-tooth pinion.

ESC - 145
Batt - 110
Neu - 135



just my 2 cents.

Just my opinion here

But racers are racers. Bashers are bashers. 2 VERY different styles of what they want to do with there toys.

I dont know how to best say this without sounding like a poop head, nor do I know if it will come off the right way. so dont take offense to it anyone..

Coming in this thread, people talk about the RX8 from what they hear, or read. But to actually get the different you absolutely NEED to try it. If you CANT feel a difference in the way the RX8 runs over the MMM then Its very obvious you do not race, or your not very far into racing, which isnt a bad thing, and doesnt mean anything. But I personally run touring car, and after 3 years of it, and getting good, get sponsored, big races ETC (not trying to sound like a D bag, just my point) you can feel the differences of whats what, and look at your lap times and see whats happening with them, Im talking down to the thousandths of a second, EVERY bit counts when racing against the top guys. With bashing cogging, or not having the super smooth response isnt exactly super important, no im not saying cogging because you bash is OK, but with a MMM its not perfect. With racing you want something you can rely on, know when you come to a certain part of the track you give it this much throttle and it will do what you want, the power band is always the same. ETC. The reason the Tekin is more is because its Tekin, there stuff is ALWAYS top of the line, and you cant expect anything less from them, not to say CC isnt nice, but I think Tekin raised the level on the 8th scale BL stuff. IDK how people are complaining about the price of there system. Pletty, LMT, NEU are all super high quality and there price reflects that. Why is this different?

The MMM can be used with racing just fine. And can get you right to the top, but for someone like me thats picky, and wants everything perfect Tekin is the way to go. Im not apart of the Tekin team, im not here to sell crap. Just my personal opinion on this debate..

[Big House]

Blacked out...

I agree. It is all about what you the driver wants. Me...I have never had bad experiences with Castle. I know there is probably better, like pletts, lehners, but I am not racing for money, trophies, or anything but the fun of building a car, putting a good motor and ESC in and having a good time...and beating up on the nitro boys. I am building a GTP II to hit the track with them but I have already been told I can't run for points which is fine...I just like the fun. Run what you run...just run it like you stole it.