Finally finished my buggy conversion!!!

[tc3_racer_001]

ok, when u fire it up tomorrow, run at very low speed (barely moving, without cogging etc) for a few minutes. then take some temps. do it on grass if you can :)

the motor will be (SHOULD) be cool as well as the lipos. the ESC however will be warm. (harder to see on a V1 as the fan is ALWAYS running...) then do some top speed running (after everything is at ambient) and check again...

the motor should be warmer the lipos warm and the esc cool. it seems almost like a resistor, burning off the ecess current off but i know it doesnt work like that (i.e manual speed controls!!!) so how it works exactly im not sure... could it be to do with the variable timing that the escs use? *or is that only castle ones??*

id like to know too. hope this helps :)
ryan

btw, where do you live? im in brissy and if you were too (hobby garage is a name i am familiar with!) we could possibly meet up once youve got it all sorted to compare etc..

[jhautz]

It sucks that you burned up that quark. I was waiting for someone to do a review of using it in a 1/8. Based on the motor, voltage and gearing I don't blame the quark for failing. I think you would have burned up just about any esc with that setup. I still have hopes for the SSB being a viable 1/8 controller and based on the specs and the success of the predecessor the 125B I still expect that it should be a nice controller for 1/8, but they are virtually impossible to get here in the US at this point and it seems rather expensive everywhere else in the world.

If you are planning to run it on the track with 5s, the 1600kv Medusa motor you linked to would your best choice of the motors mentioned. the 8xl will still run hot for extended runs.

Nice conversion. Hope you have better luck with the next setup.

[Mozzy]

Well, I'm off to the park in a few minutes. As soon as my mates lipo charges.

I'll let you know what happens with the 2084kv & 14t pinion.

TC3, I'm in Melbourne.

Not only did I fry the Quark, I also fried a brand new BLS Futaba Servo!! Surprisingly enough, my Spektrum Pro recevier works exactly as it did before. WTF?

I have another issue.

I was working on my mates E Revo (converted) last night & mounted a brand new MM V2, but, then remembered I had to change the settings on the ESC to remove brakes, change the punch & LVC.
I plugged it in to the USB cable & the two greens came up on the screen & into the program I went.
Altered the required settings & when I went to update it, it constantly stopped with an error code saying that the ESC wouldn't respond & failed to update.

I tried 3 different USB cables for MM's & still no luck.

Broke out another brand new MM V2 from the same batch this morning & it worked without a problem.

Has anyone had this issue?

[Sammus]

The motor amp ratings are near useless when your running them in a car, don't listen to them its an air thing.

Just because a motor is rated to 100A or something doesnt mean it cant draw more. If you bind the shaft and floor it will effectively short the battery through the esc and destroy it.

Sorry I don't know the tech behind it, it has something to do with the switching of the fets in the esc. I'm not asking you to believe me, I just thought you'd like to know that it is very possibly the reason you killed your esc.

[Mozzy]

Well, I'm back!

Hehehe, MM V1 #2 just decided to not work anymore.

Powers the receiver ok & the fan's still working, buuuuut, the little green light flashes when I give throttle. Looks like another MM to be returned.

Now, back to the motor/ESC/batt's performance.

What can I say, but, thanks fellas!
It worked a treat, motor no hotter than 45C, ESC 35C & 5S batt 30C & the runtime with the 4000 must've been well over 20mins. Went onto the 5S 5000 & must've gotten about 8-10mins & it just stopped.

It was pretty fast too, loved it, I really need a torsen centre diff too!
My mate had a go & couldn't believe the power over his BL Revo with a 2382kv 7XL, 4S & MM V2 running quite reliably with 3 packs.

A couple of nitro buggy boys turned up, I had a tinker with his car for tune & what not & it really made me realise why I now run BL, soooo much easier to deal with once the combo is right.
Anyway, I gave him a go of my buggy & he couldn't believe it. I had a go of his with the .28 in it & couldn't believe how S-L-O-W it was!!! Not to even mention the absolute lack of punch!!

Over all, I'm very happy with the performance & reliability while it lasted. Now I really have to get my CRT properly completed!

[BL_RV0]

Your MM is fine. It's hitting overvoltage. If you have a 4s pack, try that. One of my MM's hits overvoltage, and I guess I'll just discharge it until it goes to a little lower voltage. Worth a try I suppose.

[Mozzy]

BL_RVO, I understand, but, I shouldn't have to go to a lower voltage.

I, like many others, bought these things to cope with higher voltage & I'm not going to use a crappy 14.8V source when I have 5 5S packs to allow me to run low kv & looooong runs.

CC just need to address these problems. ASAP, which I'm sure they are.

Please don't think I'm having a go at you as that's not the case, I'm just annoyed that I would have to restrict myslef with voltage when I shouldn't have to.

I'll be contacting CC on another matter & will get them to address this one as well.

[pullinteef]

It sounds like there is some MM / MMM confusion here. Which are you using?