Design Engineering

johnnyb · Post by **johnnyb** » October 24th, 2004, 1:57 pm

Hey guys dunno if you've seen this yet but it supposed to work... AND its cheap and easy to fill seeing it just takes co2 and you can get it from a welders supply place.

Cry02 system

fry_81 · Post by **fry_81** » October 24th, 2004, 9:56 pm

ya ive heard alot of good things about that stuff, and it puts no stress on your engine like nitrous does, so thats a huge plus.

projectmx · Post by **projectmx** » October 25th, 2004, 8:30 am

what kind of gains do you get from that?

HKv6 · Post by **HKv6** » October 25th, 2004, 12:47 pm

Under the FAQ:
A: That is a tricky question for this system because of the many variables involved in the physics of the system- Base horsepower, altitude, ambient air temp, humidity, intake system, MASS airflow sensor and intercooler efficiency can all effect the performance of the system. We tested a naturally aspirated civic with 110base HP on an 85degree day with 72% humidity using just one air intake segment and found a 9% increase in horsepower. In this example we saw an intake temperature of 38 degrees. Think about how your car performs on a nice cold fall morning…it has a lot of pep and quick response. As the engine heats up it loses that pep and become a little sluggish…What we have created is a way to give you that cold fall morning on demand!!

Sounds "cool"

projectmx · Post by **projectmx** » October 25th, 2004, 2:11 pm

could this be used along side a turbo setup? to add hp?

Acamori · Post by **Acamori** » October 25th, 2004, 3:37 pm

hmm..surprised this took so long to come out, it's just ingenius. anyways, i can't think of any reason it can't be used w/ a turbo, all it really does to air is chill it more (which is all an intercooler does). at some point i suspect there might be an airflow issue no matter how aerodynamic the thing is, but it'd take some high flow to overcome the cooling probably. they're right about the availabitly (i play paintball and work where welding is sometimes done) CO2 is probably about the cheapest gas/liquid around, though i'm not sure if everyone would be willing to fill up that tank. kinda cool

fry_81 · Post by **fry_81** » October 25th, 2004, 6:03 pm

and that stuff is freezing!! i play alot of paintball and i accidentally loosened the c02 tank and co2 was spraying out near my hands. icy stuff it is lol

johnnyb · Post by **johnnyb** » October 25th, 2004, 7:17 pm

it has an intercooler cooler, intake cooler and a fuel rail cooler. You can even hook up the purge kit and purge CO2 out.

Gottagofaster · Post by **Gottagofaster** » September 10th, 2006, 1:56 pm

I have an old paintball gun and a few 20oz and 9pz bottles and such...Isn't it possible to just build my own system for this pretty easily? where should i inject the co2? and how much of it?

Josh · Post by **Josh** » September 10th, 2006, 2:13 pm

Gottagofaster wrote:I have an old paintball gun and a few 20oz and 9pz bottles and such...Isn't it possible to just build my own system for this pretty easily? where should i inject the co2? and how much of it?

yah you could, if i were to do it i would buy some NOS fittings and lines and hook it up to the CO2 then put a switch in it.

I know on average the IC kits make around 50WHP on boosted cars. but N/A i have no idea if its only a 9% gain, i would go with NOS. 9% is only like 10WHP.

Gottagofaster · Post by **Gottagofaster** » September 10th, 2006, 3:07 pm

ok well that was with only one intake segment....iv'e got a few ideas haha, first i'm going to run a 20oz bottle into my intake right before launch...and have a lot of dry ice in the compartment where my air filter is for super cold air! and see how it goes i'll let you guys know how this works out..
this might be ratarded but I live in Az it's over 100 here almost everyday....so i need some cold air

Steeb · Post by **Steeb** » September 10th, 2006, 6:20 pm

some people use co2 to spray their intercoolers but this is definately something else.

very neat!

JWMotorsports · Post by **JWMotorsports** » September 10th, 2006, 9:53 pm

In the defense of Nitrous......

Nitrous is colder than C02 and it is no harder on the engine than any other power adder....when used properly! Nitrous has a bad rap because people don't understand that it requires more fuel. Nitrous does two things....1, It adds TONS of very dense oxygen molecules at a MUCH higher density than any other form of forced induction requiring more fuel and richer AFR's....2, It is EXTREMELY cold, a good bit colder than even CO2 which requires even more fuel because the air becomes extremely dense (turns your motor into a blow torch if you don't add enough fuel!). I'd say Nitrous probably has an even higher BSFC (Brake Specific Fuel Consumption) than turbos!

What I've always wondered about CO2 is how it would work in place of actual Nitrous injection. As CO2 has two molecules of oxygen per molecule of Carbon. N2O (Nitrous) only has 1 molecule of oxygen per 2 molecules of Nitrogen! Means for a 150shot you'ld only need half the volume with CO2 than you would need with Nitrous

Now thats CHEAP power! The downside would be increased carbon deposites and it may clog a Catalytic converter pretty quick depending on the shot size.

PS

Typlically you'll see 1HP for every 10*F of temperature reduction (intake air temp at intake ports).

mr1in6billion · Post by **mr1in6billion** » September 11th, 2006, 5:19 am

JWMotorsports wrote:What I've always wondered about CO2 is how it would work in place of actual Nitrous injection. As CO2 has two molecules of oxygen per molecule of Carbon. N2O (Nitrous) only has 1 molecule of oxygen per 2 molecules of Nitrogen! Means for a 150shot you'ld only need half the volume with CO2 than you would need with Nitrous Now thats CHEAP power! The downside would be increased carbon deposites and it may clog a Catalytic converter pretty quick depending on the shot size.

I don't think they inject the CO2 into the intake, it's simply to cool things down. CO2 is already a byproduct of combustion (hydro carbons + O2), If CO2 was used, the O2 is already taken and wouldn't react (i think). N2O has nitrogen, which can react with the fuel (which isn't really a good thing). Typical air is about 20% O2. N2O boost that ratio closer to 30% and also helps (as you said) by being much denser and colder.

Gottagofaster · Post by **Gottagofaster** » September 11th, 2006, 3:33 pm

hmm physics....I don't think the c02 is going to combust...bc Combustion is Fuel + oxygen = co2 and h20 but on the other hand I'm pretty sure there is a lot of c02 in the air anyway....I beleive that is why motors get carbon deposits bc of the co2 in the air....
So i think if you injected it, it would probubly foul your plugs...and leave carbon deposites everywhere....But i'm not really sure anyone positve about it...
~i'm going to give it a go this weekend hoook up my paintball co2 cylinders to it and see what happens.....where should i inect it?
Kurt

MX-3.com

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