Quote:
Originally Posted by tracer bullet
I'd love to see some resources showing otherwise, if you find them. Not to prove any points or right / wrongs just because I think it's pretty interesting.
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A friend (he works for a time attack team) and I have gone around (re: argued) this ad nauseam because sometimes real life application results don't mirror paper results.
Adding to that is the fact that direct comparisons are impossible. Like if you're testing different widths of the same make/model of tire it's going to be impossible to keep the weight the same because it increases as the tire gets larger. Even the construction of the tire can differ, depending on the size.
He and I agree that to increase acceleration grip the psi in the tire should be lowered first, then the compound, then the size, and finally the weight-transfer, but that's just our agreement, not set in stone.
There is some sort of inarticulate law of diminishing returns too, like if you're running a 255 at perfect grip, a 285 might offer better acceleration than a 245 would, but it's so application dependent that it's not worth noting.
But in general, when guys add wider tires and get better acceleration it's usually down to the newer tire or one/multiple of the myriad of parameters has changed.