Hmm, not apples to apples, but good info to have. Thanks Brian!
I wonder if the EZRun runs hotter or if it happens to be better at conducting the heat to the heatsink. Either way, the 150A is really a much more fair comparison against the MMM. The 80A is like a MM with some MMM-DNA injected...sort of in the middle between the MM and MMM.

BTW, can you comment on how the FETs in the 80A seem to come out with higher current capability than those in the 150A? 62A x 3 = 186A vs. 26A x 6 = 154A. Seems strange unless I'm looking at it wrong.

Red a thread on a german forum about the EZrun150A combo. 2 guys experienced shattered rotors after few runs. Esc seems to be promising.

http://www.ishots.cc/data/Albums/Pre...x/NDSCN005.jpg

well that motor (3674) is only rated for 4s, so wat did guy the expect that motor isnt designed to run at 52000+ rpm.the only hobbywing motor rated for 6s is the larger 4465,2000kv which i plan to run in my upcoming 12-13lbs. lst2 coversion on 5s, maybe 6s but it'll probably wont be able to handle that speed.

That's a good point, I didn't realize it was only rated for 4S.

The cheapest 4465 combo I see on e-bay is $234. That's not bad, but for that price I'd sooner get:
-HW 150A: $118 (eBay). I'd much rather buy this from Mike, so I'll wait for him to stock them.
-Medusa 70mm: $124 (RC-Monster). Or $140 for CC/Neu or Medusa 80mm.

Total: $242. And I'd add in the Advanced programming card when RC-Monster gets them in. For a $10 difference I have to hear a LOT of good things about the HW motor to select it over the Medusa.

I'll be honest with you...on accel and torque you can't tell the difference. Both will stand the E-revo straight on the wing. The HW3674 though just has more speed....6mph which is alot on a track. I figure the same setup is probably another .5-1 sec faster a lap, which is alot.

Have you tried increasing the timing on the MMM? That's the only other variable I can think of. The 6mph difference just doesn't make sense otherwise, so maybe the HW ESC is running its motors at a higher timing?

I already posted that. The HW default runs the motor at 15 deg timing. So we set the MMM at 15 deg as well.

Ah, sorry. Must have missed that part of the thread.:oops:

Actually, the 150A has 24 FETs, so it's 26A x 4. But anyway, you can't look at just the current ratings. The RdsOn, switching speed (or slew rate), and power dissipation have to be taken into consideration as well. Even something as seemingly innocent as gate capacitance can (and does) have an effect on switching speed. An FET might have a higher raw current rating, but if the slew rate is slower and/or the RdsOn value is higher, there will be more heat (power dissipation) and might exceed the safe value. So, they may be derating the current more than usual on the 150A to compensate.

And all electronic hi-power devices need a certain amount of cooling surface area to function effectively, be it PCB traces or heatsink. These ESCs are VERY small considering the amount of power they can funnel to the load. So, if an FET is spec'd at a certain current rating, but the actual amount of cooling area is below the recommended value, then they have to derate the current even further.

Just looking at FET specs is one part, it is also important how the circuit is implemented. Short of reverse-engineering the entire ESC and taking a boat load of measurement with meters and o-scopes, it is all just speculation. The best we can do when we look at the specs is to see if the advertised spec is even possible.

is that your xtm on youtube???

Yes...that is it. 1521 1.5D on 12S :yes:

Ok guys just picked up (yesterday arrived) a Medusa to see how it stacks up. (3670-2300kv). So now we have the 2350 KV HW 36-74, the Neu/MMM 2200KV and Medusa 36-70 2300KV

that was my other option motor wise. i was think about starting a new thread just for it lol. definitely going with the HW esc for the $ but the cc 2200kv/ hw 2000kv/ medusa 2300kv are all great comparisons for their performance and price for any MT brushless conversion. The medusa motors also have a two year warranty which is definitely a MAJOR +!

We'll see how it stacks up. We are going to take it to the track and run all of them on 4S parallel for 30 min times. I want to see run times and heat for each one. I'm racing now, so that is what is important for me at least. The speed stuff....nothing but a NEU for me....tried the others, they come apart at 90,000rpms....my 1521 didn't. Bulletproof motor...

Ok guys something I didn't think about and maybe some of the big brains can answer this. The HW150 automatically is set to 15 deg of timing. Now the question is, could this cause a problem with a Neu/CC motor. I know its a 4 pole vs HW 3674 2 pole motor. Do I need to maybe try lower timing on the NEU/CC to see if it picks up speed?? I read that the 4 poles like low timing versus high timing. 15 deg is quite a bit and didn't think of that. I just set both controllers to 15 deg since the HW was already set to that.

It actually depends on who you ask. I've heard many things like, "Our ESC switchs automacally to higher timing will gain more speed and power". I like the fact that some companies offer a simple answer. I go with 0 to 5 (Low) for 2 pole, 5 to 10 (Mid) for 4 pole, 10-15 (High) for 6 pole and outrunners likes 15 and more depending on the pole. One thing I do know is that D wound motors likes lower timing. I have yet to see any speed benefits from higher timing. I have seen heat from higher timing, but no other benefit as some say you can gain power from a higher timing. But what works for me will not always work for somebody else.

where is the cheapest place to get an ezrun 150A esc+motor combo? i am in the process of converting my savage x 4.6 rtr to brushless.

first post :yipi:

I buy one from ebay for $125 with program card but still in shipping and not arrived. this is my first time I order from ebay

sorry edit the post

dont get the combo the motor is not good just buy medusa or neu motors from here

I recall when I ran a X1CR buggy with a Medusa 36-60-2000 on 4s, the HW 80A speedy felt a LOT faster than when I ran the MMMV3, and I made sure everything was set up alike.

Now hearing more and more failures with the MMMV3 and yet to hear of a HW speedy failing, is it worth my while ditching the MMM from the flux and putting in a HW150 speedy just so my set up is reliable?

I have both mmm and HW150, both in ofnas one offroad and on oval. I will say i think strait from the both the HW combo was a bit faster and scarry to some level. I threw off the premounted ofna bones tires while running it on offroad. I have ran both cars with a limited number of packs through them but have burned up the HW motor. DId a good job id say the shaft was able to slide out of the motor i got it so hot. But plugged in another milder motor and the thing works. Both battery cut offs work well and plenty of tunability...even though more with the program card from HW. Which alot of the other drivers saw as a very clever idea compared to the MMM. I do like the size of the MMM and can align it in the car easier than the HW and like the beefyness of the MMM combo motor. Just too early for me to do to much more since i am running my big car too

+1. buy the ESC, stay away from their shabby motor. I've seen countless rotor failures here.

This is what I'm planning on doing once RC-Monster has the 150A in stock. I'm thinking the HW150 will be a nice combo with the 70mm Medusa... maybe 2000kv on 5s in a MBX5t.

The other thing I haven't heard about yet that I'd love more info on is this: Professional programming box

I'm definitely after the 150a version when they are in stock, as I need an ESC pretty quick now.
Do they all come with a programming card?

The program card is a separate purchase(150Amp units ans program cards should be here early next week). :)

Brilliant, any idea on price?

$125 for the 150amp models should be where it lands on price. :)

That sounds great.

You can count me in as soon as I sell my MGT. I knew I shouldn't have bought that MBX5T roller until I sold my other truck. Now I've got it taunting me...

Same here, I think that plus a program card and shipping to England shouldn't top $175.

I too have read a lot of failures with the MMMV3. I still wouldn't say it's worthwhile for you to swap your MMM for a HW150 yet though. If your MMM fails, then pick up the HW150.

Regarding the program card, there's 2 program "boxes" available from HW for the 80A/150A ESCs. One is the simple card that has 12 programmable settings (this card is different than the one used on their 60A and lower ESCs, which only has 11 settings). The other is a program box that has a digital display and connects to a PC with a similar UI as Castle Link. It allows for more programming like custom LVC settings, throttle and brake curves, etc.

So far, I've been very impressed with my 60A, 80A, and 150A HW EZRun ESCs. So far, my motors are doing good. I have the SL3674 and SL3665, but I haven't had much runtime on them yet. I only run them on 3s or 4s, so hopefully they'll last a while. I don't plan to run them on higher voltage, which so far has been a common factor in the HW motor failures.

I think the HW150A with a Medusa would be insane!

That's good news, I hv ditch my mmmv3 for HW150amps with medusa 2000kv n 1600kv best thing is it run cools abt max 40degrees in a asia country. The huge fan is turn on with the car unlike mmmv3.

U dun need a pc to change the setting too. I hv use a 100amps HW plane esc on my CRT n races it, no problem!

Ok this 22th I m racing with d 150amps wait for the review as I m running 30-45mins main.

I seem to be having a problem with my 150A ESC. I just put it in my truggy today. When I first hit the throttle, it will go full speed and extremely fast, but in a second or two, it will drop in speed by a lot as if I'm only using 1/4 throttle or less. After that, it will stay that way. Anyone have any idea what may be causing this?
If I continue to hit the throttle, it starts at that 1/4 throttle setting for a split second, then lurches for a split second as if it's got full throttle, but then cuts back again and goes around at low speed again. It's running around 20-25mph. It's supposed to be running 40+mph.
Any help is appreciated. Thanks.

I wonder if it has something to do with the cutoff points, what kind of batteries are you using.

mayb it's ur throttle setting

Nevermind, nothing wrong with the ESC. It's just my retarded brain! I need to learn to read the instructions more carefully. I had the LVC set to "auto-detect" and there's a note in the manual that says auto-detect is only good for 2s, 4s, and 6s. I'm using 3s. So I set it to 3s manually and BAM, it works!

Two reasons so far that the HW EZRun 150A is better than the MM that was in the truggy:

1. NO COGGING AT ALL!!!!
2. It's faster!

And as a 3rd note, I don't notice that low-speed cyclicle lurching with either my 150A or 80A ESCs that others have seen. I tried it several times and I always get a steady low speed crawl. So I don't think that lurching thing is a characteristic of all the ESCs.

On 4s, it should accelerate even faster! I'd gear it to keep approximately the same top speed (40-42mph), but acceleration should be even more brutal and tire ballooning on 4s than it is now on 3s. Too bad I don't have any good 2s/4s packs. All I have are the Zippy Flightmax red hardcase 2s packs which keep popping open with any serious current demand. They're rated at 100A, and that might be true of the individual cells, but the soldering is so poor that they're 60A packs at best.

Guys, something to consider about the MMM vs EZ run reliability. There are literally thousands of MMM out there right now. To have some of them go bad wouldnt be all that strange to hear. There arent that many EZ run 150's out there so we would not be hearing about their failures as much. Just my 2 cents though.

that's not extactly true, it's the one on one exchange n free repair service that cc offer that's y there's so many supporters. ESP in U.S it's so easy for repairs. I m from Asia n I hv to wait at least 1 mnth to get it back.

Less ppl in Asia use mmm that states, Ep 1/8 is a big thing in states then anywhere else in d world.

I use hw150 due to failure of 2 mmmv3 in less than 6mnths. I tried HW n found it cheap n reliable so y not?

Does anybody run Ezrun 150/80A ESC with NEU's or CC2200 or CC2650 motors?
I have seen couple bad reports about NEU and Ezrun 150A and also my friend have problem with Ezrun 150A and Teckno NEU 1515 2700KV motor. Coging is noticeable.

He seriously think to sell this ESC unless coging can be fixed with firmware, he is ready to buy advanced programming card but nut sure does it fix... With feigao it runs as supposed.

I use a ez150amp with medusa motors no problem. Timing set to 8-11 no cogging.try changing the timing

Yes with MEDUSA motors it works i know but NEU's and CC-NEU's?

Did you try using the timing settings like Super suggested?