iced out

[bigbob]

hey guys just a quick question. my old man says when he was a youngin they would take a coffee can, bolt it somwhere underthe hood, run a fuel line in it and coil it up, add dry ice to the can and it should last a whole night of fun on the street and give you a bit of free power. any thoughts to weather or not this would do much?

[motorjock205]

Yeah, that was an old trick years ago at the drag races to make the fuel/air mixture more dense by cooling the fuel before it reached the carb...it was okay for the drags, but impractical in daily use....

[bigbob]

does it add any real ho or is it like 2-3

[motorjock205]

Yeah, it will add some hp, not sure exactly how much, but making the air/fuel mixture more dense will increase hp, that is for sure

[RocketStang911]

From what I gathered from that, you mean to coil the fuel line inside the coffee can & add dry ice to it to cool the fuel. It won't make a difference at all. Actually, it will probably make your car run rich

Since the car calculates a/f ratio by measuring the incoming air charge, and injecting a specific amount of fuel to make it combust, this will make the amount of fuel coming into each cylinder be more than normal, because the fuel is more dense, so a injector pulse duration of .5 seconds will now have the amound of fuel of a injector pulse width that lasts .6 seconds (numbers made up, just making a point).

So, unless you get a dyno tune for the change in fuel, you will run rich. But even with a tune, your car will not produce more power.

Fuel doesn't get very hot compared to the incoming air charge. Also, since there is about 13-15 times the amount of air in each cylinder per combustion cycle, it doesn't make sense to try to play with the amount/density of fuel coming in.

[Ghost96Gt]

well if his dad told him when he was a yougin it was a caburated engine. couldnt u somehow use the dry ice on the intake and cool the intake down so the air doing though it is more dense?

[importeater5_0]

well they have a more advance way of doin this now its called cry02, it shoots i think im not sure co2 into your intake with the air and makes the air more dense, and you press a button to shoot the co2