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-   -   Viper RC - (https://www.rctech.net/forum/radio-electronics/455152-viper-rc.html)

Bob Barry 04-30-2014 07:39 AM

the instructions should be under the cardboard riser panel. I think thats where they also throw in a few stickers as well.

samuelsonmark71 04-30-2014 08:30 AM

+1

nikos2002 04-30-2014 09:10 AM

Devin- apologies if you didn't get them. As stated they are normally in the very bottom of the box. Glad you found them online.

drerc- thanks for posting the videos again.

jsrracing- nice to talk with you, of course let me know if you want us to check the motor sensor.

djzipper- strange, PM me if you have more questions. Please send it to us so we can look it over if there is an issue.

nikos2002 04-30-2014 09:10 AM

BTW- thanks to all the help and answers guys!!

emacrimes 04-30-2014 10:24 AM

New to e-buggy.

Thoughts about the VTX8 and with what motors works the best?

Thanks!

Tarimon 04-30-2014 10:59 AM

1 Attachment(s)

Originally Posted by jsrracing (Post 13218404)
I have a problem with a new vtx8 and a vf8 motor.

when I go from full brake to full throttle , its like a off then bam 100 and nothing in the middle it has gotten so bad that I have to move my finger really slow to get the car to run . any ideas


I have a similar problem with my new Viper combo, the car drives about 4-5 minutes normally, then loses power quite quickly, and begin to cogg little later and then revs up no longer. Temperatures are within the normal healthy range around 70 ° Celsius. No error message on the LEDs on the power switch. Software is the a64, Profile 1 standard without any changes. Any ideas or solutions?

Thanks for your help! :)

bds81175 04-30-2014 01:49 PM

Try downgrading to the previous version of software. That's what fixed mine.

Tarimon 04-30-2014 02:51 PM


Originally Posted by bds81175 (Post 13226694)
Try downgrading to the previous version of software. That's what fixed mine.

:eek::weird:
Thats bad, cause I dont habe the pclink...




.

nikos2002 04-30-2014 04:56 PM

Tarimon- sounds familiar did you email us this question? If not check you protection settings. battery cut off, motor temp and esc. Remembering that the temp cut off can read 50-80 different internally than wha is measured externally on the can of the motor.

I have seen a few cases that the motor temp cut off if just in the edge if triggering so the unit would cause the motor to stutter which some believe is a cut off. If the protection setting is raised or disabled the stutter goes away. Just a thought to try.

blvdbuzzard 04-30-2014 08:06 PM

I am having a problem with my VTX10 ESC. I turn it on, all works great. Once I use the breaks, I loose forward. It will only go in reverse. It will not shut down if I hold the red button down either. Only way to turn it off it to unplug the battery. I can not get it into program mode either.

Is it toast?


Buzz.

nikos2002 04-30-2014 08:30 PM

buzzard- how long before it stops? Minutes? 30seconds? If it happens quickly it may be a fault in the unit. Fets just have to warm up before some fails. If you run for minutes and it happens - would be really strange not a "typical" failure. If there is one. As I mentioned before if the unit is still in warranty period please send it in, we would be glad to look at it.

djzipper 05-01-2014 03:54 AM


Originally Posted by nikos2002 (Post 13226038)
djzipper- strange, PM me if you have more questions. Please send it to us so we can look it over if there is an issue.

Thanks, PM sent.

blvdbuzzard 05-01-2014 06:52 AM

I bought it from A Main on Feb 17th, is it still under warranty?

Funny thing, I can run for 1, 2, 3, 5 minutes as long as I do not use the breaks. Once I use the breaks I loose forward. Something is wrong because I can not turn it off. If I hold the button down, nothing happens. Once I turn it on, it goes through the boot, then the red LED just flashes. I can not get it into program mode or turn off.


Buzz.

Wildcat1971 05-01-2014 06:58 AM


Originally Posted by blvdbuzzard (Post 13228463)
I bought it from A Main on Feb 17th, is it still under warranty?

Funny thing, I can run for 1, 2, 3, 5 minutes as long as I do not use the breaks. Once I use the breaks I loose forward. Something is wrong because I can not turn it off. If I hold the button down, nothing happens. Once I turn it on, it goes through the boot, then the red LED just flashes. I can not get it into program mode or turn off.


Buzz.

weird. also it will NOT turn off if the throttle is not at neutral. Some radios have a little drift around neutral. So you might want to change the dead band. Also, I had fail safes configured on mine radio and it just didnt play well with the viper. I turned them off. But the whole thing where you use your break and it instantly stops working is weird. I would send it in it it stops working every time you hit the breaks.

Also, the vtx10 has a 1 year warranty.

Tarimon 05-01-2014 07:20 AM

Nikos, what is the maximum of degrees the Motor should able to handle? I dont want to disable the protection, because of my nervous 'nitro-finger' on The throttle :blush:
Had a small test drive today and it seems to be the Motor tempetature cut off is the problem. Which adjustments can i do, to lower it? PWM down on both, throttle ans brake..?

Thanx for help...


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