I used to race Losi XX and XXX 2WD buggies many years ago, back then we always tried to make our buggies as light as possible. Just like any real race car, really.
Nowadays, as in this thread, I am reading a lot about the benefits of adding weight to many different parts of the 22 (or other buggies if you like).
I do not get this. It is something I would like to challenge, mainly from a physics point of view, and I am happy to discuss and hear your opinion.
IMHO, the only benefit of adding weight to a race car is to slightly improve a poor setup, but never to the point where it actually becomes as good as a good setup that is not using any weight.
An example: Adding weight helps to keep the car planted on bumpy surfaces. Ok, but why not soften the suspension so a lighter car absorbs them equally well or even better without weights AND accelerates/brakes faster?
Another one: The car has more rear traction and accelerates better if I add weight at the back. Ok, but why not go with a milder motor/ESC setup instead and achieve a more balanced performance in the turns (e.g. less understeer with no weight at the back)?
You see what I am trying to say.
Can anyone explain from a physics point of view the benefits of adding (unnecessary) weight?
As I said, in my opinion a better setup (shocks, roll center, etc.) should always work better than adding dumb blocks of brass.
Happy to get some fresh ideas on this!
