so whats the final say on rx8 vs mmm... - RC-Monster Forums

jocktheglide · **so whats the final say on rx8 vs mmm... -** 02.21.2010, 04:11 AM

been gone over 7 months or more from RC in general curious what is the final say who has the better setup the mamba monster maxx or the tekin rx8 esc/motor combos. Last I heard mmm was catching fire on version 3 still or something they on version 4 now?

E-Revonut · 02.21.2010, 11:50 AM

I think Castle is number 1 still. They caught the market by getting out months before the Tekin. I haven't heard of many issues lately and the few that have had issues with their MMM v3 have mostly been their own fault. I have witnessed a RX8 go up in flames first hand for no apparent reason, half way through a qualifier. Now when you start looking at the combos and put the motor in the picture it's Castle all the way! I honestly don't recall reading about anyone on here having any problems with there CC/neu motors but with the Tekin there still seem to be issues with the rotor. Just ordered a new combo for running 4s in my truggy this year and I went with the Castle creations combo.

jhautz · 02.21.2010, 03:34 PM

Id say it depends on what you are doing with it. For a general bashing setup the CC is dependable and a little cheaper and a great stuo. But it you are planning to seriuosly race it, the Tekin is the better way to go IMO. Motor selection from Tekin and the more refined feel of the esc (with or without sensors) makes it better on the track.

Both are great. I do think that both are targeted towards slightly different applications, but both can cross over and work great too so thats awesome for all of us.

MTBikerTim · 02.21.2010, 08:21 PM

Quote:

Originally Posted by jhautz

Id say it depends on what you are doing with it. For a general bashing setup the CC is dependable and a little cheaper and a great stuo. But it you are planning to seriuosly race it, the Tekin is the better way to go IMO. Motor selection from Tekin and the more refined feel of the esc (with or without sensors) makes it better on the track.

Both are great. I do think that both are targeted towards slightly different applications, but both can cross over and work great too so thats awesome for all of us.

+1 on that. Tekin is awesome on the track. MMM better in the paddock and the bigger cars.

fastbaja5b · 02.21.2010, 08:46 PM

IMO the MMM is still as reliable as Tiger Woods in a bordello. Do a search on MMM and fire and there are quite a few results, despite the pr "spin" that's peddled around, there is an increasingly long turnaround time on MMM repairs.

I credit the MMM solely for me giving away the whole 1/8 electric game, it's no fun going for a bash with a remote in one hand and a fire extinguisher in the other.

MMM - FAIL.

simplechamp · 12:22 AM

Castle's failure rate is quite a low number but I don't know the exact value, pdelcast posted it somewhere in the Castle section in a thread. Chances are if you consistently had problems it was user error, not Castle's fault. You could just as well have "NOW LEFT 1/8 ELECTRICS THANK YOU TEKIN" in your signature.

What's_nitro? · 02.22.2010, 01:13 AM

Quote:

Originally Posted by fastbaja5b

IMO the MMM is still as reliable as Tiger Woods in a bordello. Do a search on MMM and fire and there are quite a few results, despite the pr "spin" that's peddled around, there is an increasingly long turnaround time on MMM repairs.

I credit the MMM solely for me giving away the whole 1/8 electric game, it's no fun going for a bash with a remote in one hand and a fire extinguisher in the other.

MMM - FAIL.

I'm sorry you feel that way, but how long have you been away from this sector of the hobby? Sounds like a long time. I'll admit, the MMM V1/V2 were pretty bad when it came to reliability. But look at all the V3's out there now.....nevermind the units powering the Savage Flux and E-Revo BL edition. How many "Help! My MMM Kerploded!!!!1!" threads have you seen lately? Exactly. Your entire post is based on your last-known bad experience, which doesn't hold a candle to the current standards of the MMM system. I take it you never ran the Tekin system- Chances are you would have had as many rotor failures as you had MMM fires if you did.

E-Revonut · 02.22.2010, 01:36 AM

The RX8 has had a sililar failure rate just it's fewer units because they haven't sold as many as the MMM because they where second to the market and primary appeal is to racers. Once you put motors into the equation MMM looks a lot better. Look at all the newbs that are using the MMM combos in ERBE and Fluxs' as Whats_Nitro mentioned. I'm sure there have been failures from the newbs pushing the E-revos with the batteries Traxxas includes. I run my MMM in my Maxx on them batteries but I have it geared for less than 30MPH. I wouldn't mind trying a RX8 but after buying the pc link it's about $50 more and I have had good luck with Castle products, also the TRX holddown for the MMM is very convienent. I race and bash and since the release of the v3 my only failure was water related and my MM and Mamba 25 have been going strong for over 2 years without a hiccup

fastbaja5b · 02.22.2010, 01:48 AM

I only parted with my Savage Flux yesterday so I would say my experience is very recent. I have heard of some clubs running a 1/8 class disallowing them as they are considered unsafe, a quick google search will find many pictures of a MMM turned into a pile of liquid plastic and scorch marks. Failure rates are one thing, but the way they fail is also relevant. From a club point of view, where OH & S is a consideration, an ESC that dies by simply not turning on or letting out a bit of smoke, is preferable to one which has the potential to cause a fire.

What's_nitro? · 02.22.2010, 02:06 AM

Well, club racing concerns aside- No matter how/why/when it fails you can't run it when it does. I don't think what put you off was the way the MMM failed, only that it failed repeatedly. If 1/8 electric is going to continue to evolve then clubs are going to have to realize that there is always the potential for fires when dealing with this much power. Powerful systems can have powerful failures. I can understand safety being a huge concern. The clubs in question should invest a few dollars in some extra fire extinguishers, instead of banning the 1/8 classes, if they're that concerned. IMO they should be there anyways...and the clubs will lose lots of business.

fastbaja5b · 02.22.2010, 04:01 AM

It's not so much banning the class as it is banning unsafe elements. Just like insisting on hardcased lipos for safety a club can ask that ESC's be regulated, am yet to see many RX8's or Xceleron's become fireballs but I could post up at least a dozen pictures of melted Monsters. ESC's don't have to have ROAR approval, and perhaps it's a result of this lack of regulation we have potential fireballs disguised in a black plastic case.

Klausen · 02.22.2010, 12:05 PM

I´ll take the RX8 over the MMM. It runs way cooler in the trucks I have and runs very smooth.

I like the MMM as well, and have them in my Losi Aftershock and Savage Flux. The RX8/2000 kv. combo I have in my RC8Te, so ofcourse some of the cooler running, is because of the lighter weight, but anyway it just seems smoother.

hootie7159 · 02.22.2010, 12:17 PM

If the MMM wasn't working out for you, then you should have sold your MMM combo and bought a tekin rx8/losi/hobbywing/reedy combo...it's kinda steep to blame ONE company for your disinterest in 1/8 electric when there are plenty of other motor/esc combos put there...and if you were having all of these "fire-ball" MMM's there has got to be some sort of "setup" problem that either contributed to the failure or caused it entirely...and I agree that there should be fire extinguisher's at the track anyways...and by calling the MMM a "potential" fireball, you might as well call your 5b/t a "potential" wrecking" ball lol...ever been hit by a 1/5 scale at full speed?lol...anywyas, not flaming you or anything but THIS hobby always has potential risks bc everthing is getting bigger/faster/more powerful...I'm just saying that you gave up on 1/8th scale too easy and there are other options out there.... :)

simplechamp · 12:32 PM

The fact is that there is no empirical data showing one type of ESC being more likely to fail or dangerous than any other. Everything is just anecdotal: "There's more pictures on the internet of this one melted down" or "Well 3 guys at my club had this brand of ESC smoke on them". Even failure rates reported by Castle or Tekin have many variables that are unaccounted for, so it's questionable to call that empirical data also, but it's the closest we'll get.

jocktheglide · 02.22.2010, 01:24 PM

well after doing some reading on the "net" I found out that folks consider the perfect combo would be the mamba 2200kv motor paired with the RX8 ESC. I bleieve I read somewhere at multiple forums that the RX8 is a higher rating than the mamba esc dont know what the heck that means, but also the RX8 is 30 dollar more expensive also. I still need do a search on rx8 and fire...see if any exist..