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Bob · 02-22-2009, 11:43 AM

The rule, as found in the revisions and in the rule book, states that ice is legal. It does not state wet or dry ice, simply ice and icing are legal.

Dry ice is nothing more than frozen CO2. And CO2 is used in everything from fountain drinks to welding. CO2 is inert. When dry ice boils, the frozen CO2 turns back into a gas, but it is still inert. There is no residue left behind. The fact is humans exhale CO2 every day.

The reason spray cans are illegal is because most of them use a propellant that is not inert. And they do leave behind a residue, most generaly a CFC of some kind.

There can be no performance advantage if somehow there was a large build up of CO2 under the hood and it
got drawn into the engine. As stated, it's inert. It would simply take up space that oxygen and fuel would normally take up.

02-22-2009, 11:43 AM	#24
Bob Junior Member Join Date: Oct 2003 Posts: 48 Likes: 0 Liked 0 Times in 0 Posts	Re: DQ for "icing"? The rule, as found in the revisions and in the rule book, states that ice is legal. It does not state wet or dry ice, simply ice and icing are legal. Dry ice is nothing more than frozen CO2. And CO2 is used in everything from fountain drinks to welding. CO2 is inert. When dry ice boils, the frozen CO2 turns back into a gas, but it is still inert. There is no residue left behind. The fact is humans exhale CO2 every day. The reason spray cans are illegal is because most of them use a propellant that is not inert. And they do leave behind a residue, most generaly a CFC of some kind. There can be no performance advantage if somehow there was a large build up of CO2 under the hood and it got drawn into the engine. As stated, it's inert. It would simply take up space that oxygen and fuel would normally take up.