spookie

iTrader: (25)

Yup,my E Maxx rarely cogs, on 2S/ 3S it's fine and only a little in low speed gear on 4S, when I tend to go really slow, crawling on stuff. In high, 4S it's fine. Something I rarely do on 4S. 2S in 1st is kind of cool for that sometimes and doesn't cog at all.

Thanks for pointing that out on the manual, I read through it, but must have missed it. I don't want to update the esc for something as minor as the 3S miscount issue.

herK

Thanks for the input. One more question: the xerun 120-150A esc's calibrating fine with Spektrum DX3C, DX3R radios?
I have to change my Turnigy 150A esc because it cannot be calibrated with Spektrum radios (doesnt recognise reverse at setup).
Thanks

rcboy1

Glad i could help. 3s is just an oddly sized pack and the voltage sometimes causes problems.

Thefixxer73

Hi there..I apologize if this is posted in the wrong section, but Google directed me here. I recently purchased the EZRun 3656 4700KV BL & WP SC8 120A ESC combo. I am extremely satisfied with the performance. It has put some serious stomp into my Traxxas 2wd Stampede and made my truck the envy of the neighborhood RC club. I totally love it!!

That said, I am new to brushless and I still trying to learn the ins and outs of the system. I am confused on battery compatibility for my particular system. When I bought the system I also purchased 2 batteries, One is a Turnigy 5.0 5000mAH 20-30C 2S pack, Gives it plenty of power but I don't like it because it doesn't fit the Stampede's battery tray quite right. But I purchased it to get use to the new to me power of brushless. I also purchased a Venom 4000mAH 20C 3S hard case battery that will fit the Stampede battery tray much better. Problem is I am still wet behind the ears with this technology and after reading through the units specs I am at a confusional fork in the road.

If I am interpreting the specs correct, this particular system with the 4700KV motor is not advisable to use a 3S. I would need a motor less than but equal to 4000KV. Am I correct in assuming I shouldn't use a 3S with the 4700KV motor?

I hope you can help. I am so confused. I ran brushed motors for years and I can't get out of that mindset just yet. I love my HW EZ-Run system and wouldn't trade it for the world. If I need a different motor to run my 3S battery then I will shop for one. Additionally, what is the best battery I can possibly purchase for my particular system?

TCCustoms

iTrader: (9)

2s with my SCT Pro and the 4700 i was hitting 39mph in my SCTE 2.0 so im not sure why with a stampede u need more but yes, the 3s should have a lower Kv motor just like the VXL system has a 3500 motor to where 2s and 3s can be used

Thefixxer73

Thank you very much. I am so happy to finally have a black and white answer. I have been able to hit 45mph verified by GPS geared 19/87 on 2S. I just was curious what I could top out at if I were able to use 3S.

Still unsure of the gearing but was told on the traxxas forums that 19/87 was a good start.

spookie

iTrader: (25)

Yup and that's good ratio to start with. Watch the temps on the motor and esc.Roughly esc 140 and motor no more than 150-160 degrees, too much heat is a motor and esc killer. If it's a little to wild, drop the pinion some to say 17 tooth. My son had a Rustler, same gearing. He wanted to put a 23 tooth pinion in and I asked him why on earth would you do that lol. He didn't but started snapping driveshafts anyway. 3S on a velinion 3500 motor.

This site will give you an idea of how fast it is with you're particular setup. http://scriptasylum.com/rc_speed/top_speed.html

Thefixxer73

Yep, I have been using that site for a couple years now. Using my system and selected a 3S it was almost 70mph. I can see a trail of parts at that speed lol!!

Snapped drive shafts aren't and issue. I upgraded to mips the same time I got the new BL system. I dumped a ton of $ into my Stampede the last month to make it fast and furious. Lots of RPM parts.

Does anyone have a suggestion for a really good battery for my system in a stampede. As I mentioned in my op Im using a Turnigy 5000mAH 20-30c 2S but because of how pwr wires come out of the pack I can't get it to sit in the battery tub right and I had to move the Rx just to half ass get it to fit. Since I can't go 3S on the 4700kv..what is the biggest 2S I could use?

odiefish

Bumping this back up. Just wondering if I can not run a 7 cell nimh from time to time or if there is away to rig power to the fan from the servo or something else?

fastchvy

iTrader: (15)

Ok, so what should the first and second software be? I have 1.08 for the first and 1.01_1 for the second....I would think the sct Speedo should have a set program being its a 4pole motor..I'm getting frustrated because nobody from hoobywing is stating what software should be ran in the sct Speedo...I wouldn't worry about it if all the sct Speedos I got came with all the same software, but they don't. My buddy has 1.00_1 in his and it's a rocket and runs cool, I have 1.01_1 and runs hotter and slower....what's right or wrong.

nanoverse

Hobbwing/Cobra
Could you please simplify firmware versions so that normal people can read them. 1.xx and if bigger revisions 2.xx and 3.xx, etc.

Thanks

mikeinsocal

+1

JaredN

iTrader: (6)

I have the sctpro with tekin 4600 kv and the truck runs fine but when I bring it back to the pits and take the body off the red and green are flashing sensor wire is new. What causes this it isn't to hot either.

spookie

iTrader: (25)

Let me do this, let me hook up my lcd box today to the pc, and take a picture of what it says about which firmware goes on which esc. There are two listed on my box, one is 1.08 and the other is like 1.11 or something. I do remember the 1.08 does everything except two esc's per the sidebar notes. Then you can decide which firmware goes on which esc. I don't want to brick yours by giving the wrong advice. You have to make sure before hooking to the esc, that you have the right one loaded in the box.

Eta pics
This is using the newest Hobbywing usb link software. V3.3 I hope this helps.


Over on the left you can see the two different firmware listed I have 1.08 loaded for my 150A V2 Pro or as they list it, Type B.

fastchvy

iTrader: (15)

So why does the box have 1.08 and the Speedo has something else?