Spraying C02 Directing Into Airintake Pipe

[Big Rizza]

' date='8 Nov 2006, 02:57 PM' post='2651735']

froSt i mean something like this

so that for the total length of the pipe there would be say a 10mm gap where the co2 will be directly spray into. the grey section will be close off so that it will only have co2 in it

arr im tied, going to have a nap then i will try and explain wat im thinking in my head

ahah

Michael

Are you expecting to have the CO2 flowing through this outer tube all the time? If yes, then you will need a lot of CO2, which may become expensive. If not, once the CO2 heats up it will no longer cool the intercooler pipework, and instead act as an insulator between the intercooler piping and the cool air outside, and lower the cooling efficiency of the intercooler.

I still stand by my suggestion of a water spray system if you're after a DIY design project!

[DazWah]

it would work as long as the gas is flowing counter to the air intake for best result. As someone else said earlier it would require alot of gas! But you could probably make a section of the intercooler pipe refrigerated using the standard a/c setup and copper pipe. Please if yyou decide to do this ask a refrigeration mechanic to do so, all refrigerants are harmful to the ozone!

[Kaido_RR]

thanks everyone again

lots of good idea, i will have to sit down and get designing something really soon thanks again

[Steve]

I think the idea you suggest with the intercooler pipe wont have much effect - there is little heat transfer from the pipe to the charge air due to the pipe heat having a skin effect, the charge air moves too quickly through the pipe work to absorb much heat.

If you want to cool your intake temps, perhaps try using a water/air intercooler, and instead of using water, use CO2, or even your aircon. I met a guy who shoe horned a VH45DE(TT) into a silvia, and was using the aircon through a water/air intercooler and claimed intake temps around 5 - 10 deg C, running 12psi - could make for some nice short pipework too.

[FATGTS-R]

Just too add to the discussion on CO2 being ingested into the engine my friend had one of the commercially available CO2 intercooler spray kits.

He had to mount his pod filter external of the engine bay and well away from any of the CO2 gas being sprayed as when the pod was inside the bay the engine nearly stalled when the gas activated.

He now has a dry ice cooler, but has kept the CO2 system and is making up a rig under the bonnet so he can use it as a fire extinguisher incase the bay catches fire. (700kw dyno queen)