Originally Posted by
Trevor Williams
while the motors are very smooth and linear, they are also very slow. I put my VST 17.5 in my car with max external timing and kept the same gearing, esc profile, tires, etc...identical car with a motor change to same wind....coming down the straightaway, the car was about 1/3 as fast as my Orion v3 setup(rediculously slow)....I geared every which way but loose and NEVER could get the motor to be anywhere near as fast/powerful as the Orion, not even close as the Orion's are monsters.....you say the VST's like to be geared tall? Well, many of us have done it with ZERO improvements, dont act like it's all user error, it's not.
I don't remember stating user error. I am just stating that the motor did not perform for me either so I relegated it to my buggy. Where I had to boost the crap out of it to get it even to compete. I was never able to find the sweet spot in an SC truck. And yes its slow compared to anything other 17.5 I have tried. Here is what I am currently running for buggy indoors. 69/28 with 45* of boost.
When I was running zero timing with a different motor I was geared 69/31 and the speed was about the same. My son running the dou2 motor is geared 72/26 with 9* boost and is just as fast as my car down the straight. I have seen no advantage in power with the stock viper motor. It may needed a tuning rotor to wake it up some. I don't know but it is not a ripper. It is however very smooth as you stated and somewhat easier to drive. But in buggies on carpet with foam tires there really isn't many places to use the mid power band. I need rip more than smooth acceleration on this kind of track. If I was running in dirt it would probably not matter as much because the corner would not be as hard on the equipment and you would want the smoothness to keep the wheels from spinning.