Originally Posted by ToysRUsKid
i'm trying to figure out what's the difference between the revtech motor and the D3 Duo? They both cost the same and I can't make heads or tails of which one to get. I'm looking to run 17.5 12th scale.
The RT has more ventilation and is capable of carrying more current for a longer time before temps rise. The motor is more of a torque and rpm based deal, so If I where running in 1/12th I think I'd be more inclined to run the D3 with the 1S rotor. I'm basing this on the pure torque factor and running 1S I think you'll just be putting to much energy into a RT to get the same performance that you could get out of the D3.
The RT is better suited towards off road, short course and touring car. JMO
Perhaps EA can chime in on what he has found out so far.
As far as the RT motor goes, I have found for TC this motor is a little different to tune for. My best results have been (blinky) to gear the motor for around 140* at the 4 minute mark, when I do this I hardly ever see the motor go over 160* by the end of the 6 minute run. It just seems to stabilize at the 4 minute mark and doesn't go into a thermal runaway like some other motors do. Over gearing it really hasn't brought any on track advantage so probably isn't worth it.
Just watch out for those can screws and if it feels really "coggy" when you turn it over by hand, save yourself a headache and put it on a motor checker and see what the current draw is. If its over 3.5 amps (at full timing) back the motor can screws out a little or it will cause other failure problems.