Well for people with aftermarket intercoolers then ya something custom will have to be done, yet I think this is perfect for people like me still running the stock one until I can afford an aftermarket one.

 

hmm.....something like this might work great in the middle of my V

i was considering buying the NOS one long ago, but didnt want the gases getting into my intake....C02 didnt occur to me as an option.

Rob, did you ever finish your version of this?

Fujikuro - please PM me some home depot part #s and details or something.

 

NOS is WAY to expensive to be sparying just to cool your intercooler, but C02 is cheap. Fuji where are you man?? Give us some numbers or something. Also can you PM too about what exactly you got to make this.

 

i realize that

 

Who knows where you can get a electronic gas silinoid?

Jp

 

(tapping foot annoyingly)

Still waiting over here for an update

 

Pianoprodigy- that was my thought too, it kinda detracts from the cool aluminum FMIC look. however, you may be able to run it along the top and bottom of the bumper and just point the nozzles a little farther away from the IC. it might give it that restaurant-style misting effect if you do it at a stop, but while you are moving the air should be pushed down and in to the intercooler.

*/ |
* / ||intercooler
*** ||intercooler
*** ||intercooler
* \ ||intercooler
* \ |

theres my crappy drawing, with the * being the co2, and the slashes would be the direction of the co2 being sprayed down. anyone follow me or see how this might not work?

 

hey man thats really cool, good job!

 

Ive taken the idea above and made it safer (correct me if im wrong)

ive got a paintball gun with an adjustable regulator that i no longer use, ive dialed the pressure down to around 200 PSI. From the Regulator id like to hook up a paintball remote (rated for 3000psi) with an on off valve and have it so the on/off valve control part is inside of the ashtray (or somewhere else equally as cool) so that when you slide back the little cover you can open/close the valve then and spray the IC, then run the line through the firewall and to the IC...this is where i run into a snag, i dont know what i can use thats widely available that can spray the entire IC. Can anyone help me out here?
-stephen

EDIT: the remotes are only 42" long so i was thinking i would need more than one, anyone know where you can get a really really really long one? or the same steel braded line with the correct fittings?

thats a pic of the remote


but as i said before the tank will be screwed into the regulator and the remote will be screwed to the regulator.

 

Ok Updated ANYONE?

 

ok ok an update!!!

hey dubcaps - i am using that same valve style for the paintball tank. it came with the braided hose, but i found that the one i got at home depot works fine. i opened the tank valve up all the way and there were no problems. i tested it a few times and everything was fine.

oh yah, there have been no updated because i have been in japan for the past 2 weeks. i leave to come home tomorrow and i am going to try to get some track tests in this weekend so ill let everyone know if its helping my times.

as far as non-track tested results.... yes built exactly as i said before, it is spraying co2 perfectly well, and nice and cold. because i made my holes a little too big, its not spraying super cold air (below freezing), but it is cold enough to hurt if you spray it on your skin. if i had done a few less holes, and made them all smaller im sure i could get even colder sprays. it does seem very effective as a quick pre-race spray deal.

oh yeah, ill post the parts list when i get home.

ok as far as a gas solenoid..... you can get them off ebay pretty cheap. if you are going to install one, i think it works best when it is close to the sprayer. you could even hook up two solenoids if you wanted. then you could have one for the IC sprayer, and one for a purge. i guess its sort of pointless to have a purge since the sprayer just vents anyway, but you could have that cool nitrous purge effect i guess.

well, i have to finish packing now, i have 20 hours of travel time ahead of me....later!

 

Back from the dead

I found this thread when I was searching about DEI's IC CO2 sprayer...I think it seems like an excellent idea, w/ great power potential.

One thing I haven't figured out yet is why people are so worried about CO2 getting into the intake? Don't WI kits spray water into the intake? Haven't heard anyone worry about that...??

Also, would it be wise to run CO2 spray into the IC, as well was WI into the intake? Or is that overkill?

 

The C02 sprayer for you intercooler is really only used for combating heat soak in the intercooler. Like with your PFS intercooler being a stock mount is seceptable to heat soak in traffic (as im told) I still have the stock one. If your useing the C02 at wide open throtle there are several disavantages, first like mentioned before you can suck it into you intake which will cause you engine to bog and loose power, but also if you cool charge too much while boosting it may cause lean conditons ie detonation.

 

post pics fujikuro please!

 

To my understanding, heat soak was a bigger issue w/ FMIC's...vs. a SMIC? But the big FMIC dragsters don't really need to worry about that since they're not auto-xing and what not...for them, the IC takes priority over the radiator.

Also, I thought that if done properly so it sprays only into the IC, at WOT, the drastic reduction in temps would result in a lower pressure and thus much greater volume of air entering the IC, giving you much more hp?

I remember I read something about this and the DEI CO2 sprayer EssentialSpeed used in their RX8, and they said there was an increase in throttle response and a big jump in whp. So which is it??

Oh and Mike, I PMed ya.

 

wait,

dont flame me but why is it bad if some co2 gets into the intake?

 

That's what I'm trying to figure out...cuz isn't that what they do w/ the WI kits?

 

Takes place of oxygen which your engine burns to make power. Less 02 = less power. Ive never heard of detonation from it though.

 

Exactly, however i didn't mean that the C02 caused detonation. What I meant was that the lower intake charge might lean out you air fuel ratio to a point where detonation could be an issue. Ramy it is very difficult to ensure that the C02 doesn't get sucked inot you intake without some serious ducting and shielding.

 

Fatman, so how is this diff from running WI? Isn't the mist injected into the intake?

Even if you're not using an open air element? Eg, the M2 airbox...it's not grabbing air from the engine bay, just from the nose of the car.

So point being, if it was done properly, and the CO2 was isolated to just the IC, it would definitely have marked advantages, right?

 

Any pre race cooling you do on the stock intercooler is almost a waste of time. It will heat back up before you get out of second gear if you are running a decent level of boost, not to mention it still has terrible flow. If you are using it during the run, you need to tune the car while using it or your AFR's will be way out of wack. There have been many people blow engines on the dyno by sprayin the IC trying to achieve bigger #'s. Use alchohol injection, it will cool the intake charge much more effectively and safely.

 

Any pics on this update, would really like to see how this came out..

 

Water injection from my understanding cools more because of waters ability to rise only a few degrees for ALOT of heat absorbed. Here the mist takes place of very little oxygen, very very little compared to the c02 being sprayed constantly at wide open throttle.

 

Ahhh...gotcha. That makes sense. But here's a newbie question for ya. What's the difference between the air going through the intake and the air going through the IC? Ie, the purpose & final destination of the air. They're obviously two diff paths, and for some reason displacing O2 in the IC isn't that big of a concern, but it's a major concern in the intake, right?

 

I think you mean C02, the air that goes through the IC is exactly if it were going through the radiator, its just for cooling purpose and never sees the combustion chamber of your motor compared to your intakes which want as much air, as cold as possible to get more power and even less chance of pre-detonation. Thats why spraying the IC helps drop temps, no one has been able to measure this, and I plan to do it soon once I get my little digital guages working.