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

Krafcik 02-11-2013 07:22 AM


Originally Posted by macke (Post 11800499)
I don't know how the Tekno SCT410 is designed but I would suspect there was a spring loaded servo saver mechanism in the right steering post. If the servo saver was trigger it is more than likely the servo the arm would hit the soldering posts/wires.

Didn't happen that way, sorry. The buggy was stopped dead on the track waiting for the qualifying session to start when it went up in smoke.

kd2777 02-11-2013 09:52 AM

Also what you aren't seeing in the photo, is that picture is of absolute max steering throw on the Tekno, the servo arm will never get any closer to the wires. In the Tekno, the servo horn is on a 30* or so forward angle when the wheels are strait.

kcobra 02-11-2013 10:33 AM


Originally Posted by macke (Post 11800499)
I don't know how the Tekno SCT410 is designed but I would suspect there was a spring loaded servo saver mechanism in the right steering post. If the servo saver was trigger it is more than likely the servo the arm would hit the soldering posts/wires.

As long as end points are set correctly, this would not be possible. When engaged, the servo saver "moves" at the part connected to the wheels. The part connected to the servo tie rod does not move.

JJay03 02-11-2013 10:36 AM

Would it be ok to set my motor temp cut off at 210 or would that void the warrenty?

macke 02-11-2013 12:39 PM


Originally Posted by kcobra (Post 11801652)
As long as end points are set correctly, this would not be possible. When engaged, the servo saver "moves" at the part connected to the wheels. The part connected to the servo tie rod does not move.

You're absolutely correct. Don't know what I was thinking of... To my defense I have a bad cold with some fever :( haha

dbracn 02-11-2013 04:13 PM

Nikos,
Thanks for the advice. Can i just set the acceleration boost and not the top speed timing? Also are they independent of each other, so if i have 30 on the motor, 15 on acceleration boost, and 15 on max timing they would be 45 total throughout the rpm range and not 60 total. Im running the older software too if that helps. I don't have much time to play around on race night so i would like to get it close as possible.

Thanks,




Originally Posted by nikos2002 (Post 11796011)
start with gearing down a few teeth. put the esc in race open mode. add some acceleration and top speed timing, start low to start with 15º each, slew rate low as well maybe 3. Start rpm around 6000, finish around 19800. test it out, see where you want more adjustment - bottom end, maybe top. Every driver likes it a little different, so you are going to have to test a little to see. As always keep an eye on temps to be sure (both motor and esc).


Genebaby 02-11-2013 05:15 PM


Originally Posted by Foosmatrix (Post 11797293)
I was adjusting a few things on my VTX8 through the pro gauge and while in the BEC menu I noticed that the pro gauge allows you to adjust it up to 8.0v. Now everything I've read about the VTX8 says it has an adjustable BEC up to 7.0v. Anyone have any insight on this ? Is it safe for the ESC to run the BEC at 8.0v ? (I run KO RSx power servo)

Any news on this? I'm intersted too. 7v is good but up to 8v would be even better. Are there increments in the range up to 8v?

I am considering this ESC, with a Tekin motor and I have a Radiopost servo, much like the system above that caught fire. :(

shagnat 02-11-2013 06:49 PM


Originally Posted by JJay03 (Post 11801662)
Would it be ok to set my motor temp cut off at 210 or would that void the warrenty?

+1. I'd like to know the settings for the Viper ESC and motor. :batman:

Foosmatrix 02-11-2013 07:27 PM


Originally Posted by Genebaby (Post 11803231)
Any news on this? I'm intersted too. 7v is good but up to 8v would be even better. Are there increments in the range up to 8v?

I am considering this ESC, with a Tekin motor and I have a Radiopost servo, much like the system above that caught fire. :(

The adjustment is in 1/10th increments up to 8.0v. I went ahead and set mine to 7.4 while I wait for an answer on here

Genebaby 02-11-2013 08:52 PM

Wow, there aren't too many ESC's over 7V, I like that.

macke 02-12-2013 01:02 AM


Originally Posted by dbracn (Post 11802942)
Nikos,
Thanks for the advice. Can i just set the acceleration boost and not the top speed timing? Also are they independent of each other, so if i have 30 on the motor, 15 on acceleration boost, and 15 on max timing they would be 45 total throughout the rpm range and not 60 total. Im running the older software too if that helps. I don't have much time to play around on race night so i would like to get it close as possible.

Thanks,

You will find answers to some of your questions in this post:
http://www.rctech.net/forum/11735209-post6755.html

DustinH 02-12-2013 05:46 AM

Ran my Viper 8.5's in my new Team C TS2 2wd SC and Evo 2wd buggy this past Saturday at Adams Creek Raceway in Broken Arrow Oklahoma and they performed flawlessly. Running a VTX10BE in SC and VTX10 in buggy. Finished 1/11 in buggy and 5/21 in sc. Was struggling to find the sweet spot for handling in the sc but buggy was dialed!

https://lh4.googleusercontent.com/-m...UNSET%255D.jpg

https://lh6.googleusercontent.com/-w...UNSET%255D.jpg

https://lh3.googleusercontent.com/-x...UNSET%255D.jpg

ohiostatechamp 02-12-2013 06:30 AM


Originally Posted by Foosmatrix (Post 11797293)
I was adjusting a few things on my VTX8 through the pro gauge and while in the BEC menu I noticed that the pro gauge allows you to adjust it up to 8.0v. Now everything I've read about the VTX8 says it has an adjustable BEC up to 7.0v. Anyone have any insight on this ? Is it safe for the ESC to run the BEC at 8.0v ? (I run KO RSx power servo)

This is a good question. Here is my opinion. For starters, I have my BEC set for 7.4 volts. I would not go any higher than this. Most high voltage servos are rated at 7.4 volts and any higher you run the risk of voiding the warranty on the servo. I also use a Ko Propo radio and all of my receivers are rated for 8.0 volts. In most cases 7.4 volts is high enough to stop the brown out issue most people see with tekin and a high voltage servo. As with any electrical devise, there are power spikes. Most spikes will not harm any equipment, but if you set your BEC to the limit you could find the weak spot in your setup. Besides at 8.0 volts your servo will only be a little stronger and a little fast. IMHO.
Reuben Diaz

Integra 02-12-2013 07:10 AM


Originally Posted by ohiostatechamp (Post 11805405)
This is a good question. Here is my opinion. For starters, I have my BEC set for 7.4 volts. I would not go any higher than this. Most high voltage servos are rated at 7.4 volts and any higher you run the risk of voiding the warranty on the servo. I also use a Ko Propo radio and all of my receivers are rated for 8.0 volts. In most cases 7.4 volts is high enough to stop the brown out issue most people see with tekin and a high voltage servo. As with any electrical devise, there are power spikes. Most spikes will not harm any equipment, but if you set your BEC to the limit you could find the weak spot in your setup. Besides at 8.0 volts your servo will only be a little stronger and a little fast. IMHO.
Reuben Diaz


HV's are rated for 8.4 Not 7.4V

ohiostatechamp 02-12-2013 07:29 AM


Originally Posted by Integra (Post 11805545)
HV's are rated for 8.4 Not 7.4V

not sure what servo you are using. But Futaba, Airtonics, Savox, Spektrum, JR Propo and KO Propo rate there HV servos at 7.4 volts. I use Futaba HV servos and checked the specks. No where on the instruction sheet does it show a voltage range up to 8.4 volts. I even checked amain hobbies. All of the HV servos say 7.4 Volts.


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