Went racing today. We had a great turn out again in 4wd mod buggy. We had a few fast guys from Cal up to race with us. The car was running good and i was at maybe 85% driving today. My viper system ran great. I'm running a 7.5 in blinking mode. I also have ordered a 6.5 and 5.5 motor for my buggy. All and all a good fun day of racing.

+ YouTube Video

My VST17.5 with VTX10 got called out yesterday for being to fast. Tech was super surprised when I showed it to him


Running Expert Unlimited 17.5 2wd SC.

Team C TS02
27/75
55 Boost
5 Timing
15* Can Timing

Ridiculous power. Sooo smooth and punchy. Fast fast fast.

The Copperhead 3900kv system is a 540 4-Pole Motor, but does not meat ROAR specs internally. (At least to the current 540 motor rules, which are for 2-Pole motors)

Truth is that there are no rules for a 540 4-Pole motors yet, and ROAR has yet to publish any information in regards to what specs are needed to be labeled legal. All ROAR has done thus far is add a couple of motors to the approval list.

Viper is waiting to see what direction ROAR goes in regards to the 540 4-Pole Rules before they invest the resources to develop it.

Copperhead is a system that is designed to re a upgrade replacement for the RTR market, it just happens to be a fast and smooth, very affordable system. It was really aimed as a good basher system.

Viper contacted me.

They are sending me a new motor.

Sounds like there was an issue with the magnets in some of the first batch of motors.

Anyway they are taking care of it and fast so that's good.

Cool good to know. Guess i should try out my motor then. Was saving it for outdoor season but better at least run it once

URGENT NOTICE TO VIPER COPPERHEAD USERS

Dear Viper customers. As you know we have released our new Copperhead VX4 system couple weeks ago. We have found an issue with a small percentage of our VX4R 4500kv and 5150 kv 550 size motors coming from the first batch. The magnets from our supplier had some problems and the small percentage that was affected will malfuntion during the first run. We have fixed this problem with our new batch and will replace the motor for those that have this problem. Please note only a few of them were affected, not all

Symptom:
The rotor magnets will crack in the first run and to cause the motor to spin freely along with noise and malfunction.

If you have this problem please visit Viper's RMA website http://www.viper-rc.com/contact.php and fill out the form. After verification we will email you and send a return shipping label so you can send the damaged motor back. If you have questions please email [email protected] or PM me directly and I will help you. Please write "Copperhead Problem" in the subject and include your name, phone number and shipping address so we can provide you with the best customer service. Viper is here to help and we will do our best to provide help

Any specific combo size or are problems occurring in all three motor sizes? thanks for the heads up as these things happen!

Sorry updated the post above, its the 4500kv and 5150kv VX4R motors that were affected.

Man, I feel bad that it happened to you like that. I have been running the 4500 for months without a single issue. Although it was a test system.
Viper will take care of you. The system is really good...don't give up on it just yet.

Oh well seems par for the course with me lately. For the 1-2 minutes it did run it felt pretty dang zippy

Is there any one here running a vtx10 with a 8.5 viper in a dex210? Curious as to your setup in regards to electronics. Thanks!!!

Im running a 6.5 with a vtx10 in my 210.. what are you wanting to know ? Electronics placement?

Yea sucks i went off the few here that have been runnin em and decided to try one. Havent ran my motor yet but seems my luck ill have a bad one too lol guess ill run it this weekend and find out

RC Car Action reader awards are back again this year and Viper RC products are on there.....Someone must be noticing us...Get your votes in so the others will know which motors and esc's are top notch...

http://www.surveymonkey.com/s/YRFZRT8


Entry deadline is March 19, 2012

Just as an FYI. I ran my VX4R.45 in an SC10 4x4 today for good 10 minutes. Up and down the street full throttle all the time. Through the grass around my house (wife wasn't happy). Motor barely got over 120* and ran good. No issues.

And this was a production motor!!