I am upto another sprint event in a few weeks.Proper race tyres cost an arm and a leg. But for the entry level races I do people use good street tyres.However one of the biggest differences I have found out about race tyres and regular street tyres are the softness of the material.Race tyres are simply a lot softer and wears out a lot quicker.Can anyone think of a chemical or even an acid that I could spray on the tyre surface to soften(melt) them a bit?
Tyres only MELT with heat not with chemicals. I'm sure you are aware that warmed up tyres in racing have different characteristics than cold tyres. Chemical treatment is liable to be downright dangerous as any such treatment may result in the tyre losing other characteristics such as road grip and even completely distintegrating away from the steel structure [called the belt] that is an integral part of a tyre. S So although proper racing tyres cost an arm and a leg, that is much better than losing arms and legs in the accident you may cause [and become legally liable if anyone else is hurt] What you are propsing is dangerous to the extreme and probably completely illegal even in entry level races!