DIY IC Spray for under $10!

[Black Majik MSP]

WARNING: For street use ONLY. Using this at ANY motorsports event will most likely result in you getting kicked out.

I've posted this link to the DIY from VWvortex a few times on here & I finally got around to doing it myself.

http://forums.vwvortex.com/zerothread?id=1113281

I went to Home Depot & bought all of the materials. EVERYTHING you need is in the Irrigation isle except for the hose, which is in Plumbing. They don't sell the connectors individually, so you have to buy a bag of 5 or so, but I spent $20 & got enough for 2 of these IC spray kits. If you look at the cost of only the materials needed for one kit, it's probably about $7.

FL is insanely hot & I do everything I can to help my car stay cool. I don't have the $$ to spend on a Co2 or N2O IC spray & I love DIY mods, so I thought I'd give this one a try. I followed the How-To for making the valve setup, but I chose my own path for the tubing & went with a dual spray setup instead of the single that he used.

I know most people don't want to sacrifice their windshield sprayers, but I rarely use mine & I can always just clean the window when I get gas or use Rain-X to help. With the valve setup, all you have to do is pop your hood & turn 2 knobs to change between the IC spray & windshield sprayers. However, I drained all of my windshield washer fluid & filled the resevoir with water, so I don't think it would clean the windshield as well.

This picture shows all of the materials needed to make the setup I used. The only thing not pictured is electrical tape. I only had to use it on the bumper beam because the hose is kept secure everywhere else. I even used to tape to aim the sprayers & it worked just fine (use 2 pieces there instead of one).

 

[jersey_emt]

nice

 

[redwagon02]

Excellent Ryan, now I can cool down my radiator.

 

[jersey_emt]

So how does it feel?

 

[Black Majik MSP]

This entire setup can be installed simply by removing the grille & I can probably do it in 20 minutes or less now. The only thing I permanently changed was splicing the valve portion into the stock windshield sprayer line, but you can always just splice the line back together if you remove the IC spray. I designed this setup for my SMIC, but it could easily be adapted for use with a FMIC & additional sprayers could be added. The total cost would probably be $10 instead of $7 for a FMIC setup with 4 sprayers. These pictures show the path of the hose from where the valves splice into the line all the way to the SMIC core.

 

[Black Majik MSP]

Lastly, here are the 2 vids I took at like 3AM last night. This shows the path of the tubing & the sprayers in action. I zipped the files because this site doesn't allow uploading of WMV files.

 

[Black Majik MSP]

I apologize if my posts seem a little random...I'm going on little sleep & I'm busy with school.

Rick: The next time you're at one of the meets, I'll give you a demonstration. I really like the setup because without removing the grille, it's almost impossible to even tell it's there. The only thing you can really see are the vales & the are flush up against the side & underneath this lip.

Jersey: I've tried it out a few times so far during spirited driving. I wasn't expecting to feel anything like hitting a NOS button in 2F2F, but all I can say is that my car was still running great despite it being like 90 degrees out. I still need to try using colder water to see a bigger improvement.

The ONLY thing I have left to do is figure out how to disable the wipers from going off when I pull the wiper stalk to mist. I thought I read that you can just take out a fuse, but I didn't look into it. If anyone knows, please share the secret.

 

[Aaron]

I had a similar setup a home depot special and got tired of the wipers always going off when spraying. I eventually removed it. If someone can figure out the wiper thing then I would put it back on.

 

[IllBinfrontofya]

This entire setup can be installed simply by removing the grille & I can probably do it in 20 minutes or less now. The only thing I permanently changed was splicing the valve portion into the stock windshield sprayer line, but you can always just splice the line back together if you remove the IC spray. I designed this setup for my SMIC, but it could easily be adapted for use with a FMIC & additional sprayers could be added. The total cost would probably be $10 instead of $7 for a FMIC setup with 4 sprayers. These pictures show the path of the hose from where the valves splice into the line all the way to the SMIC core.

Sounds Fing tight to me. I'm on ym way down to home depot myself to go ahead and pick up the parts. I was wondering though, will this prove to hold any gain on a stock car? I mean, I live in Tucson, AZ and it gets pretty damn hot out here(our hot is DRY hot too) and I was thinking this could be a good mod for me. I like to take the car out and go mountain driving, and shooting this a few times every couple min might help keep it running smoothly and cool Would this really be worth it?

 

[ping]

Another option is running a parallel system and salvaging the washer fluid tank and pump from another car. A1 VW's (cabrios and rabbits) have a 2 quart tank that's relatively easy to stash somewhere in the engine compartment, and other models run well as well. It's a simple 2-wire hookup (fused/switched power and ground) along with running the hose/squirters. I was able to get a handful of squirters, hose, reservoir, and pump from a local salvage yard (along with 3 spare seatbelts for another project car) for under $20.

Sounds like a great way to go!

Side note: No sanctioning racing body allows fluids of any type (water included) to be discharged (intentionally or otherwise) on the track while running. Even in unsanctioned organized racing, even water can cause a dangerous situation on the track - While I know we're talking a small amount of fluid here, do use with care.

 

[CONEH8R]

As far as disabling the wipers. I have a DIY sprayer kit hooked up to windshield washer pump and i installed a seperate toggle switch for the pump. AKA, no windshield wipers and i can turn the pump steady on for several minutes if need be. If you take apart the steering column, there is a harness that plugs into the wiper switch assembly, the wire on the farthest right is the power wire for the pump, if you pull that wire, then you can provide power to the pump without the windshield wipers. If you just wire in another 12v source, that 12v will bleed back up that line and the wipers will go again. I was unable to find a schematic of the pump wiring or figure out how to hook up the pump seperate but still retain the wiper switch. It's easy to get at the pump wires under the fender, and you could wire it that way, but the problem is, anything spliced into the interior wiring, as long as the that one wire is hooked up to the wiper switch, the pump is gonna trigger the wipers because of the relay inside that switch. Unless you install another toggler switch to break that line. AKA, 1 switch to disable to wipers and 1 switch to run the pump. I was eventually intending to rig it up so i could spray when i wanted, but still reatin full function of the windshield sprayers, but haven't had time to trace all the wires and narrow it down yet.

 

[MSP#735]

very intersting DIY post......great write up also....the only thing is i personally wouldnt want to scrifice my windshield washer sprayer. id like to know the gains from such a mod, with me living in NC there probably wont be much a gain if any since its not a bloody hot. if someone can answer these questions along with the windshield wiper question what would be GRREEAATT!!

 

[Black Majik MSP]

As far as disabling the wipers. I have a DIY sprayer kit hooked up to windshield washer pump and i installed a seperate toggle switch for the pump. AKA, no windshield wipers and i can turn the pump steady on for several minutes if need be. If you take apart the steering column, there is a harness that plugs into the wiper switch assembly, the wire on the farthest right is the power wire for the pump, if you pull that wire, then you can provide power to the pump without the windshield wipers. If you just wire in another 12v source, that 12v will bleed back up that line and the wipers will go again. I was unable to find a schematic of the pump wiring or figure out how to hook up the pump seperate but still retain the wiper switch. It's easy to get at the pump wires under the fender, and you could wire it that way, but the problem is, anything spliced into the interior wiring, as long as the that one wire is hooked up to the wiper switch, the pump is gonna trigger the wipers because of the relay inside that switch. Unless you install another toggler switch to break that line. AKA, 1 switch to disable to wipers and 1 switch to run the pump. I was eventually intending to rig it up so i could spray when i wanted, but still reatin full function of the windshield sprayers, but haven't had time to trace all the wires and narrow it down yet.

All I want to know is how to stop the wipers from going off when I mist with the wiper stalk, but still work when I turn them on. If you can help me figure out how to do that, I'd greatly appreciate it.

 

[Black Majik MSP]

very intersting DIY post......great write up also....the only thing is i personally wouldnt want to scrifice my windshield washer sprayer. id like to know the gains from such a mod, with me living in NC there probably wont be much a gain if any since its not a bloody hot. if someone can answer these questions along with the windshield wiper question what would be GRREEAATT!!

This isn't the kind of mod to provide any gains. Basically, it attempts to do what a very efficient FMIC does...counteract heatsoak & keep the car running at it's full potential. However, a FMIC also provides better flow & consistent cooling, so that's why it increases performance.

 

[Black Majik MSP]

Another option is running a parallel system and salvaging the washer fluid tank and pump from another car. A1 VW's (cabrios and rabbits) have a 2 quart tank that's relatively easy to stash somewhere in the engine compartment, and other models run well as well. It's a simple 2-wire hookup (fused/switched power and ground) along with running the hose/squirters. I was able to get a handful of squirters, hose, reservoir, and pump from a local salvage yard (along with 3 spare seatbelts for another project car) for under $20.

That's a great idea that I might eventually consider...I think we have a fairly open area in the back left side of the engine bay. My main goal with this setup was low cost & ease of install. Anyone can afford this & for those of us in southern states, it's very beneficial. Also, I personally hate wiring or installing things that require a lot of work.

Side note: No sanctioning racing body allows fluids of any type (water included) to be discharged (intentionally or otherwise) on the track while running. Even in unsanctioned organized racing, even water can cause a dangerous situation on the track - While I know we're talking a small amount of fluid here, do use with care.

I should have mentioned this...thanks for bringing it up. I'll add it to the original post.

 

[jurgs01]

I don't have my winshield washer working anyway because I don't want to drill my CF hood. I am waiting till I get my upgraded SMIC from **********, but when I do I will make one of these and figure out how to disable the wipers. There is more than likely a relay involved, and I would guess that it takes a slightly different path at some point then the regular wiper activation. I will find out later and post when I do.

 

[jeffmsp]

perhaps you culd engineer a drip tray of some sort to help keep the water off the track....hmmmm...to the mazdaspeed, there is work to be done! j/k, Im at work, but if someone else wants to try it out, go right ahead (homework)

 

[Black Majik MSP]

Even though it's very discreet, I have no plans on trying to use it against regulations. It's a matter of safety & I don't play around with that.

 

[FSDET]

you can always use it before the race ... just spray it real quick and wipe it no bigi

 

[Black Majik MSP]

you can always use it before the race ... just spray it real quick and wipe it no bigi

Just like the guys with the domestics who have bags of ice sitting on their engine.