CO2 cooling

[raz0r$harP.UK]

Hey all!

Thinking about what to do to increase performance, I came across an ad for CO2 cooling systems in the latest Zoom magazine. In particular, the intercooler sprayer caught my eye.

Has anyone had experience with CO2 cooling before - does it make much of a performance gain? I remember in High Octane 2 they had a car using CO2 injection and the drop in inlet temps was pretty impressive.

PS: Serious qu aye? Ricers need not apply :headspin:

Cheers.

[MANWHORE]

are you sure it's co2? that's carbon dioxide and it's a biproduct of the combustion reaction of petrol. That'll mean there's less oxygen to burn, and therefore less power. Are you sure it's not no2 (liquid nitrogen).

[dangerous_daveo]

are you sure it's co2? that's carbon dioxide and it's a biproduct of the combustion reaction of petrol. That'll mean there's less oxygen to burn, and therefore less power. Are you sure it's not no2 (liquid nitrogen).

Nah its a CO2 spray for sure, I remember reading about them.

Anyway an intercooler is a sealed item isnt it? It flows air, and allows air to cool the fins which the air is flowing thru??? So the co2 would just hit these fins making them cooler??? Yes no?

[tang0]

you all remember 2 fast 2 furious ... remember at the start of the film, he pulls up in the r34, shooting flames out the back, and from the side of the front bar vents white vapour ... its co2

co2 is EXECLLENT at major cooling down, very quickly ... if you take a fire co2 extinguisher and open it onto a 4 pack of beer, it'll chill it down a LOT ...

imagine spraying co2 onto the intercooler fins ... it will cause the IC to cool down a LOT ...

but to do it, you'll be using a lot of co2, and co2 is not really very cheap ... you also have the danger of carring around a high pressure canister of gas ...

just my 2c

[redline2003]

Was that CO2? I always thought it was NAAAAAAAWWWWWWSSSSS(NOS) lol. I'm pretty sure it was NOS bro, when the white vapour shoots out its called 'NOS purge' or something along those lines. By the way CO2 can be used as an intercooler spray and in water injection where CO2 is shot directly before the throttle body, further cooling down inlet temps, i'd prefer Aquamist which uses normal water to a similar effect.

[Trust33]

Yeah itd b great for the cooler,and the epa, but c02 injection would b bad i would think due to it's oxygen robbing elements.

[Dahtone Racing]

in 2 fast 2 furious the R34 has NOS purge

Nitrous pressure should be kept consistent to obtain optimum performance. All NOS systems are designed to work best with a bottle pressure of 900-950 PSI. Pressure is determined by the amount of nitrous contained in the bottle and temperature. The chart below shows what happens to nitrous at various temperatures. Accordingly, it's a good idea to use an NOS bottle heater and/or blanket. Likewise, maintaining consistent line filling is important...which is why most racers use an NOS purge valve to release nitrous vapor from the feed line. This provides liquid nitrous to the inlet of the solenoid(s) for better consistency and repeatability.

The primary purpose of a purge valve is to release trapped air or gaseous nitrous from feed line(s). Helps to ensure consistent performances

[blind_elk]

CO2 would only be used as a coolant for the intake charge, but only by cooling the components eg IC. Certainly if it was injected into the A/F mixture, the engine would run super rich because of the reduced amount of O2.

Some people have designed systems to carry dry ice (which is solid CO2) for cooling ICs, etc. But you would need to be wary because you might cool the IC so well that it ices up inside, partially blocking the IC.

[race_snooze]

its a cryo cooling system that you guys are talking about, I am looking into getting one my self. They have a co2 bottle like nos but dont need a bottle warmer. Are not dangrouse to carry like nos because it is not combustable. What it does is sparys co2 at high pressure, which would come out of the bottle at something like -30 to -50.

They then use a smell sealled bulb in the intake manifold that they puch co2 through like an A/C system where the liquid co2 hits the bulb it expands and creats a massive temp drop.

They also do the same for the fuel line.

All the benifets of nos with out the hassels, and to fill a big bottle (e) of c02 it would cost about $60 and for a smalll nos (b,c) it will cost like 70.

[race_snooze]

http://www.qri.biz/ that is there site

[raz0r$harP.UK]

Yep that's the kit race_snooze..

[WHITER33GTS-T]

Looks like a cheap way for easy power gains.

[R33TypeMS2Wooshka]

guys my mate has had the cryo cooling [aka Nitrogen cooling if u must know the specific]...

and from what ive seen he has never had a problem with cooling at any degree, even giving it hell down the tracks the entire day... only once or twice given it was 42 degree day and it was like 6-7 hours into giving the poor car a thrashing down the tracks to try and get his timse down did it have one lick of problems...

in all honesty, its a big ****ing cost but its well worth it, given u got good power that NEEDS that sort of cooling....

his car is pretty much a replica car that tommy kayra [how eva u spell his last name] made same sort of outputs but when it was brought here [some lucky prick baught it]... they removed most of the power mods but for some reason left the Nitrogen cooling system in it, hes only got 300-350 kw now cause hes having to spend some cash to get where he wants but yer...

just food for thought

[Kaido_RR]

c-red s15 in perth has one of these on there car, seems to work good

[smok74]

CO2 would be good for external cooling of the inlet charge, i.e the CO2 does not come in direct contact with the inlet charge. It is indeed NOS purge on that R34 in 2F2F but there is also CO2 intercooler spray cooling systems available on the market. The engineering company ARE has developed a special intercooler that holds a quantity of dry ice (frozen CO2) that is used to cool the charge. Im sure there are many other ways to enhance the effectiveness of an intercooler and I'm sure we will be seeing these on the market in the not too distant future.