Originally Posted by Davidka
You may be right, but if his car is spinning due to there not being enough traction then you are not too light, you are over powered. lol Try a 7.5 motor. .
Spot on, run a smaller motor because less weight will have more power with the same motor as previously due to a stronger power to weight ratio, run a bit more negative throttle expo or run a bigger pinion gear, there is no way you can argue that you have no traction when running on the weight limit... Years ago cars used to all be on the weight limit, all graphite etc. with lighter 2000mah cells etc. and pretty big wind motors, yes they didnt have as much power as brushless but they had a lot less grippy tyres as well... think about it
Throttle control is all you need, you cant punch a lighter car but a lighter car WILL accelerate faster, brake faster, pivot around turns faster and just be more nimble EVERY TIME. The argument to compare to real motor racing isnt irrelevent, real racing they lower the weight as much as possible for the reasons i mentioned above, they have stupid amounts of power as well but also run a restricted power limit as well which is somethin R/C hasnt seen yet for modified. Once a setup has been optimized for a lighter car and its dialled, it WILL be faster than a 200grams heavier car EVERY TIME.