Cheap "high voltage" esc Quest
 

I think I found for an affordable "high voltage" programmable ESC. I got it yesterday and it worked great with 3s1p A123. When I doubled the voltage it blew the stock tiny caps. Brought it to work today and added some better caps. I benchtested it with 6s1p A123 and it worked great. I'll use it on Sunday and see what kind of abuse it can take during dragracing.



http://i189.photobucket.com/albums/z...n/DSCF2079.jpg
http://i189.photobucket.com/albums/z...n/DSCF2078.jpg
http://i189.photobucket.com/albums/z...n/DSCF2080.jpg

Well where did you find it, what are the specs? I want to know!

Ditto, sounds interesting!:yipi:

huh, Fleabay.

up to 25V with external BEC, 18 volts nominal.
comes with programmer..has lcd screen. No laptop needed.
120A continious and 150A peak
getting it to sync with remote was tricky
comes with 3300 kv motor
took almost 2 weeks to get here.

Where would one procure some of that nice shrinkwrap?

Maxamps has shrinkwrap of all sizes: http://www.maxamps.com/products.php?cat=71

Is it this ESC?
http://cgi.ebay.com/1-10-Brushless-C...QQcmdZViewItem
I allmost bought this but no information abot this ESC hold me back, i think that its overrated and not so good quality. Blown Caps shows that. Can you tell something about fets?
But tell us how its perform? Trigger reaction? Lets say is it possible to correct car fly trajectory from jump with throttle without delays? Its realy imprtant becouse i race only dont do speedruns. And also tell about BRAKS are they good? strong and smooth?

I think I already have that same combo coming to me as well. I know the ESC is on the way, I don't remember if I got the motor too.

:lol: ..... I actually bought this last week for one of my boats. I'm going to run 2s and 3s on a 24" cat that I have, but now I may have to drop it in a truck first. :party:

snellemin,
I'm not too surprised you blew the stock caps on 6s a123's. I read your write up on rcu, and know your were pushing the limits. Hey, would you be willing to set up my esc with some 35a caps like yours? If so, send me a pm.

That is the ESC man, which got more expensive. I used 4.5" wide thick heatshrink and soldered on 3x 330uF 35Volt caps.

To enable the ESC, you have to put in it reverse after the first beep. You'll hear another beep, which tell you that the ESC is enabled.

What were the ratings on the stock caps that came with it?

Hmmmm.........looks interesting. :yes:

The stock ones were two tiny 220uF 35V caps.

I've had really good success using the Novak HV capacitor. I've ran it on 6S without any issues and it doesn't get warm or anything.

http://www3.towerhobbies.com/cgi-bin...?&I=LXKKN3&P=7

It produces ALOT of zap. :yes:

This ESC looks like a good candidate for a project I'm planning.

I want an ESC setup that will run dual brushless motors in a boat.

It looks like all of the FET's are on the same side of this power board.

I need to find some sort of cooling plate made of either aluminum or copper that allows me to circulate water through it. It needs to be approximately the same size as the fet area on this board.

Then secure one ESC to each side of the cooling plate with thermal heat sink compound. Jumper the power wires, jumper the receiver harness (opto-mod) of course. Then heat shrink the entire thing together.

The end result would be a compact ESC unit that would run cool. It would have two sets of motor leads coming out. One set of battery power leads, and one receiver hook up. :yes:

Oooooo. Looks like that may be just what the doctor ordered!

It's actually made for cars! *faints*

Snelle, hopefully it survives the weekend. If so, I'm putting one on order to run my emaxx. However, that seller doesn't have any for sale now...

That's not the shrink wrap you get from maxamps; this one is thicker. (and more flexible) the only type i've known for ages.. It's way more flexible than the normal shrink wrap you buy for batteries.

Yes, Lets hope it survives this weekend. If it does, it will be a nice alternative to the mamba esc in my rustler. Gets to be a hassle plugging it in the laptop at the track. I can barely see the screen in the sun.

I hope this won't effect Mike ESC sales.

Which heatshrink are you talking about Serum? The one that I'm using?

yeah keep us posted about how well it works for ya.
phil

Yes he is talking about the shrink on the ESC you used. It seems "rubbery"? Or thicker.

Yes, I want to know where I can get the thick rubbery shrink.

I got my heatshrink for Altex here in Houston. It's the same one I used on my batteries and it's hard. Zero Flex (looks deceiving). I like it since it keeps my batteries nice and warm for dragracing. Tashpop has seen it.

I like it a lot....it looks sturdy.

its good that all you speak about shrink wraps :) but i think ESC is more imprtant :)
I hope soon get any feedback about ESC performance, is it worth or not.

LOL, good point.

Everyone knows that a good heatshrink job is good for at least an extra 10A and/or 10v! Just like "turbo" or "NOS" stickers add about 10-15HP to any car. :smile:

I didn't, but do now! Thanks Brian!

Don't forget that a red paintjob will add at least 5mph to the top speed. Something to do with the refraction of light from the color red that exctly aligns the painted surface to the aparent motion of particles as they approach the speed of light. It also has to do with Brownian motion and has a direct correlation to the space/time continueum. It is all well over my head, but well proven in the origianl Star Trek. Oh, and William Shatner rules!

I thought I was a nut job....lmao!

heheheheh, it's cold here man. You should see me, when I put sweaters on my batteries when it hits 30' here.

But during the Summer I just put dual racing stripes around them for that extra ummphh.

Cause everybody knows that I live my life 10 seconds at a time.

http://www.modellfun.com/b2b/products/blmonster.php

Im fairly impressed. Check out the youtube vid of the esc & motor system in their 1:10 4wd truck- the brakes seems to very good, and no signs of cogging either. Top speed isnt too bad either = 43mph. This isnt with the 120amp esc though, but a 50amp 3s version.

Funny you should say that, I live my life 1/4 mile at a time!

Yea, but do u have NOS...The big ones!

No, but I am sure that I can overnight some from Japan!

they got some good looking batteries as well, no idea of price.
http://www.modellfun.com/b2b/product..._Batteries.php

Everything I know, I learned from F&F.

Yes, I learned that I should never granny shift, or forget to double clutch!

I blew a FET today. I didn't even get to race it. Mucho sucko. I used the mamba as a replacement, which handled 6s1p A123 ok. It shutdown once.

So it means that ESC not worth? Maybe i will stay away from it...

I might of gotten a fluke. I'm sending it back for a replacement and requested upgraded caps.