That is correct. I run the VTX10 in 4x4 with a 6.5. Just monitor your temps and it should be fine.

I hope so. But I thought nikkos said not to do it

It really depends on the servo you are using. If its not designed for HV don't do it. If it is, then it's ok. But also remember if it is. Higher you turn it up, faster and harder it's going to work. 1) higher risk of causing a problem, 2) also makes unit faster, which can ,ale it put of control.

Majority of club racers I have seen with high voltage servos have way to fast a steering response. Them they say "wrong tires", "diff oil is wrong", something like that. When it s just they have too fast servo action.

Tony- yes the vtx10 is rated down to 6.5. But you are pushing the unit on it top end of range. Like mentioned. Just watch temps. Using a 10R, the system won't work as hard since its rated for lower motors. Of course gear it wrong, not set up right or run too long can make anything hot.

if any one has a viper 21.5 they want to sell shoot me a pm. seeing as the Vipers are torque style motors compared to my SPs, think it could be quite useful in USGT.

Fyi, bad things to say in the b5m thread. I did my best. ..lol

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hello ,

I would like to know about VTX10 those brought by the throttle PWM frequency which is original to 9600 hz
if I fall? or if I ride?
thank you for these présicions Nico.

Just had a vtx10 poof on me, i am not the original owner. Anyone know the cost to get a replacement without warranty?


Also warranty length of the replacement?


Thanks, Josh

If your not the original owner (or have a unit out of warranty), the Trade In program is available. www.viper-rc.com/tradein/php Brand new unit for $95.

Thanks nordfink -- can't control what everyone says in social media, especially those who like to talk down a product they never tried. The joke is really on them -- they just don't realize it yet. :sneaky:

I know that several in the Seattle area use VST21.5 for Trans Am and USGT. Good Luck!!

Are you asking what the throttle PWM does if you lower it -- or raising it?

yes that's right ,

if for example I spend a PWM throttle at 4000 Hz, what will make this setting change?

thank you nikos .

nico -- think if it like a "bite". Lower the frequency the more powerful "bite". Higher the frequency the softer the "bite".

With a Modified motor (3.5 to 10.5) you would run a higher Throttle Frequency, the motor produces more torque, more "bite" so the speed control does not have too. In fact its a little higher to calm down the power of the motor.

With a Spec motor (13.5 to 21.5) you would run a lower Throttle Frequency, the motor does not produce high torque, so you are using the speed control to try and develop more power - more "bite". Go too low and you can cause your wheels to spin from too much power.

Brake Frequency is similar, lower the Frequency the more "bite" which equals stopping power. Lower the Brake Frequency - faster the wheels will look up during braking.

thank you for that clarification nikos :nod:

Nico.