Urgent: Please Help!!!

[MooseDrool]

I just bought the new novak HV pro 6.5 system. I put it in my e-maxx and am using it with a 2.4 ghz spektrum. It has been programmed multiple times and the power cap and fan are both hooked up. It will be working fine, when all of the sudden, it will wrench violently, then take off at full throttle on its own. this horrifying episode can last anywhere from 5 seconds, to almost a minute. I then tried the stock radio, re-programmed the ESC, and no problem. It had no issues until it got about 10ft away. It then begins to glitch horribly, stuttering, but at least it does not take off on its own. With the spektrum, the spasm could happen when it was 1 ft away, or 50 ft away, and did not seem to occur at any particular time. PLEASE HELP ME!

-I know this is the revo forum, but I thought you guys might know more about brushless than the E-Maxx guys.

[fmj40]

How its acting with the stock radio sounds par for the course.. meaning that system will glitch with the stock radio... the same thing happened to me. AS for when you are running it with the spektrum setup. Gotta be something like low batteries, bad antenna connection or something like that. the 2.4 should not be that glitchy, or for that matter glitchy at all. Is it possible you didn't bind the recr and radio properly? Try to rebind the radio after resetting its settings... hope this helps.

[J.A.T.O.3.3]

When you bind the TX too the RX you also set the "failsafe" on the RX , make sure you have the throttle at neutral when you set it or else when the failsafe kicks in it will go to whatever throttle setting you programmed in .

This could be why you are seeing a runaway when it looses signal , where is the RX mounted ? Is the antenna wire near any other wires ?

[MooseDrool]

When you bind the TX too the RX you also set the "failsafe" on the RX , make sure you have the throttle at neutral when you set it or else when the failsafe kicks in it will go to whatever throttle setting you programmed in .

This could be why you are seeing a runaway when it looses signal , where is the RX mounted ? Is the antenna wire near any other wires ?

I will rebind. The antenna wire is as far away as possible from other wires. I am going to have to get out the manual for my radio to see how to set the failsafe.

[Seattle Slew]

Do you have a Novak Glitch buster installed? http://www3.towerhobbies.com/cgi-bin...?&I=LXNRE0&P=7
I had the same probelm and this item took care of it.

[MooseDrool]

Do you have a Novak Glitch buster installed? http://www3.towerhobbies.com/cgi-bin...?&I=LXNRE0&P=7
I had the same probelm and this item took care of it.

No, I don't but I will get one. Luckily, I think re-binding fixed the issue. Now it works pretty well, however, the reverse does not work all of the time, but o well . I didn't have a chance to test it very well though, because in the first 5 mins on 14.4 volts, I flipped it right over on pavement, broke both shock towers, a body mount, and rear bulks.

Gotta go get the parts, then will try her again.

[MooseDrool]

Eureka! Ive got it! what is happening is when I punch it, the bec is loosing power. as soon as I let off of the gas, voltage returns to the reciever, and it goes to failsafe, BRAKE! which is recognized as full reverse, and it bolts! So, if I get a seperate battery pack for the RX, my problems will be solved.

[HoovHartid]

or you can use a bec

[slowenuff]

Easy sell your spektrum and get a futaba 3pm.

[Lunchbox1019]

Eureka! Ive got it! what is happening is when I punch it, the bec is loosing power. as soon as I let off of the gas, voltage returns to the reciever, and it goes to failsafe, BRAKE! which is recognized as full reverse, and it bolts! So, if I get a seperate battery pack for the RX, my problems will be solved.

I had the same problem with my set up. The culprit was my crappy venom lipos. They could not stand up to the draw of the motor and still provide power to the rx, even with external bec. If this is the same for you than an rx hump pack or better batteries should cure it.

[MooseDrool]

I had the same problem with my set up. The culprit was my crappy venom lipos. They could not stand up to the draw of the motor and still provide power to the rx, even with external bec. If this is the same for you than an rx hump pack or better batteries should cure it.

Yeah, I am going to get an RX hump pack. will a good 5 cell, 6.0 volt nimh reduce the performance of my servos? How about my ESC?

[Lunchbox1019]

You may already know this. But you will need to disable the lead from the Novak ESC that is currently supplying voltage to your RX before you install the hump pack. Therefore your ESC will not be involved in powering anything but the motor, so it shouldn't effect anything on that end. As for the servo performance, I supposse that would be determined by the quality hump pack you buy. I purchased this http://www3.towerhobbies.com/cgi-bin...?&I=LXTTZ2&P=7 that worked great.

[blue.coupe]

My new HV 6.5 had a similar problem with my GP 3300 6 cell packs. With the GPs I cant just Jab the throttle it will not go. I can roll into the throttle and it does ok. Lipos work great though.

[MooseDrool]

My new HV 6.5 had a similar problem with my GP 3300 6 cell packs. With the GPs I cant just Jab the throttle it will not go. I can roll into the throttle and it does ok. Lipos work great though.

EXACTLY my problem. With my venom 7 cells, i really cant even accellerate without it dying. However with my epic dreadnaught 3000mah 6 cells, I just cant floor it from a stop. Now, how do I go about disabling the power supplying lead?

[The Oracle]

2 options:

1) just dont turn on the esc. Just leave it turned off after connecting up the rx pack (might wanna add an on/off switch to the packs wires- simple job), then when you connect the main batteries, the esc will automatically be switched on as its brain board gets power from the rx pack. sounds complicated, but its aint really.

2) remove the red wire from the rx lead to the esc (you can actually remove it at both ends of the lead due to the design of the replaceable/seperate rx lead), then the esc wont send power to the rx- the rx pack will power the rx and not the escs brain due to the broken circuit as such (no + wire).

[1truckerdan]

There are 3 ways to dissable the bec. 1; get a servo wire extention and cut (or pull it out of the plug) the red(center) wire...2; slid the red(center) wire out of the esc plug (and shrinkwrap).......3rd you can cut the red wire( I wouldn't do incase I need the esc to power a rx someday)

[The Oracle]

Umm, those are all the same thing- removing the redwire from the equation

The rx lead is double ended, and isnt fixed to the esc as such like with the MMM for example, so you can actually remove the redwire at both ends, so no need to cut anything or tape /insulate anything. A nice feature that allows you to run a shorter or longer rx lead as required on your particular setup..

[blue.coupe]

I got this from Novak today.

This is normal, what is happening is the Voltage of your battery packs is “dipping” under these loads.


It is dipping far enough that your receiver stops working correctly. This happens with just about any brand or type of receiver released in the past five years.



When you use NIMH it will help to “turn off” the lipo protection. Even a full charged NiMH looks like a Dying Lipo.



This receiver “brown out” has become so common that more then a few companies (including ourselves) have released small capacitors that plug into any open slot in the RX.



The Cap helps to act as a reserve tank for the RX. So when the main battery packs voltage dips, the Cap helps keep the Receiver awake for the brief period when it would normally cut out.



Many people have reported this solving the problem 100%, other’s continued to have problems but had improvement. Others had no improvement. The difference is in the battery packs, and the gearing. Better packs do this less, weaker packs do it more. Smaller Pinions help relieve the problem, larger pinions will amplify the problem.

[Seattle Slew]

YES it is called a glitch buster! it solves all of these problems
spend the $10 and try it for yourself