Originally Posted by
thecaptain
There have been true dyno tests done stating that it does affect speed. Specifically a lighter rotor will have more rpm a quicker acceleration and less torque. And similarly the opposite is true for a heavier rotor.
I think the scale is important in some of these 1to1 comparisons, because some of the stuff that we do in 10th scale really wouldnt work in a full sized racing car.
Correct, but I think it is important to note that a lighter rotor will accelerate quicker(0.2 sec quicker) by itself and probably slower under load if it has way less torque than the heavier rotor... I say it is best to have a heavier rotor and a lighter vehicle drivetrain: hopefully the drivetrain(minus the tires) could weigh exactly or close to the same as the rotor for the best possible Spec performance.... TC manufacturers are overbuilding their cars for mod racing, and they are not ideal for Spec performance: some of these car's drivetrain weigh over 90grams, wow.... I got my tc4's drivetrain down to about 50grams, and now I need a 40+ gram 12.5mm rotor in my 17.5t : that would be a total of 90grams rotating vs 112.2+grams in another vehicle with a fleta lightweight type rotor with less torque and less power.... Hopefully my dreams can come true ...lol...I am counting on the Fantom Team to deliver....
In addition, some magnets might weigh more than others. Will the weight difference unleach some more power ??? I guess the weight scales will be working overtime to get that extra 40 watt of power over all the other motor manufacturers...Taking weight off the chassis to add weight in the rotor might be the way of the future....Cheers...