WOT Out of control
 

Hey guys. I have a slight problem. Driving my girls emaxx with 5s lipo, 10xl and 12020 with li saver....driving is fine, until you get about 10 feet away and it takes off WOT! It didn't do it with the stock radio, but I put in the New radio rx and radio and it does it. Now, I'm not sure, but could it be a low charge on the rx pack maybe? It was fully charged when I ran the stock radio system....

Any help would be great!

I had the same thing happen with a 10L with a 9920.. And i was running spektrum too! I put a switch between the UBEC , or in your case your receiver pack and it fixed the problem.. It really raises your heart rate. huh! ;)

So you run the li saver? All you did was put a switch in it?
My rx pack was at 6.3v unloaded, and my 2s was at 7.43, the 3s was at 11.56v...so I'm thinking that maybe the batts are not the problem.
Heart rate! Hell yeah, I didn;t think I even had on until then! It happened to Mandie first, and she hit a phone pole, no damage. I took it for spin, and it went sailing down the street. Finally had to say "f" it and curb job it to flip it on it's lid, broke the rear bulks at the shock towers.....no biggie, they were the stockers! no other damage though....and imagine...5s open throttle with a 10xl stock gears, 18/51....the thing was screaming!

Try moving the RX.

I thought about that, but where? It's already away from everything else...

Move it just to see if thats the problem. If it doesn't help, you eleminated one possibility. Check the antenna wire, as well.

I wasnt running lipo, but i doubt it would make any difference. I think Warriors need to run with switches, im running the one that came with my spektrum, running it in my LSP now too without problems. Use a switch, im 99.9% sure it will fix the problem.

Sylvester, wasn't your problem slightly different?

I'll try both....but it's weird......I hate this li saver stuff....i prefer the Quark....don't have the issues.....but then, you got heat issues! ARG! Oh well. With the gmaxx, where would you put the rx for a change up?

I still remeber that thonk it made when it hit the fence:026: ! Even after seeing what happend to dom, i always lift my truck befor i turn it on.:005:

Very similar actually, only difference is he was using lipo and receiver pack.

Newe- If you already have it placed on the side where a second servo would go, id try a shock tower, but i dont really like that idea... hmm.

Hmmmm, is still think it's connected to the li saver some how...i'll try the rx first, then add a switch, then try without li saver...any other ideas are welcome. It seems to be the same prob as the people that go in reverse full throttle.

Is your li-saver the car version? If you got it off Mike it is. I highly doubt its the li-saver, since im also using one in my LSP right now without any problems.

Yeah, it's from Mike. Shayne also runs the same kind with the same controller basically, same rx...maybe it's the rx pack itself....

So I moved the RX with no success. Any other ideas?

Thanks guys.........

That was my first thought as well.

FWIW, I had a brand new Spektrum receiver with occasional problems and it turned out to be the antenna wire.

BTW: Replacing the antenna wire on a Spektrum is a PITA! They solder the wire right next to a few itty bitty surface mount components and then the use some kind of rubbery glue stuff to help hold the antenna in place.

ARG! So I should check out that connection...ok.

I hope for your sake that it's not that. It was a real PITA to replace the wire - and I don't exactly consider myself a soldering novice. The glue stuff had to be carefully scraped off and the tiny solder point for the antenna doesn't allow anything larger than 22 or 24 Ga wire (at a guess). And then you have to be careful not to heat the solder point too much because of the SM components nearby (about 2mm away).

I had to re-solder mine too, it was no easy task, but with a small 20 watt soldering iron, it made it alot easier!

Lucky you - all I had was a 40w iron (with a fairly large tip). I am able to reduce the heat with a homemade temp control though, so that helped. Made me a bit nervous to do that on a brand new Spektrum module, but really wasn't since I technically had it for about 3-4 months.

Yea, i cant imagine using a tip almost as big as the board being worked on! ;)

Lol, tell me about it. Kinda like using a jackhammer to do cabinetry. :)

I'm going to ask a dumb question. Did you program the ESC for the new radio?

Another thought is that, could your fail-safe mode on the radio is set at WOT. I don't know why it would go into fail-safe mode though.

I did. Always do with a new rx and or radio. I like to make sure the settings are read by the esc properly and all that since I'm not familiar with it all. I may just put the rx in my jato to see how it responds in there. If that just takes off, i really don't care as much. it's what i got it for! LOL, but my maxxes are not cheap to repair like the jato....

did you get it figured out yet?

Not yet. Been busy with school....to rule out the rx though, I'm gonna throw it in my Jato. It's the RS300, I use the RS310 but it should still work fine just for testing. I tried moving the rx but it didn't help. If the rx works fine in the jato then I'm leaning towards the li saver. The other thing I was thinking was a low rx pack.....so we will see.