[Carbon Dioxide Plumber]

To put dry ice into the intake of a Civic?

It could work to boost compression, however what about build up on the ice on the engine?

If there was a C02 turbo charging system as described, the dry ice could be made from the cars own exhaust, and sublimation emissions from the dry ice should be enough to cool the engines temperature, simulating the cold weather performance.

I would recommend keeping the ice sublimation emissions source (dry ice from exhaust) far away from engines intake to reduce damaging it. You might consider putting the dry ice behind the engines heat source to reduce drag. Also don't forget to change the oil first to cold weather oil.

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