DIY Intercooler Sprayer using headlight washers
08-10-2002, 02:42 AM
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DIY Intercooler Sprayer using headlight washers
Another DIY tip brought to you by RAD951's speed shop. I made an intercooler sprayer using the lines that go to the headlight washers. I simply made two holes on that air scoop, installed a two nozzles, and hooked up the water lines. I plan on using a methanol/alchohol water mix. I am not sure if there could be a real noticable performance gained from this. But I have heard of alot of ricers using a water sprayer on the intercooler.
08-10-2002, 01:45 PM
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tryed it wont do a thing.But your on the right track instead of spraying onto the intercooler you need a high pressure mist into the intake track to cool the intake charge.
08-10-2002, 04:44 PM
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When I get more money later on, I want to try that aqua mist water injection system. I like the way it will also clean the entire engine combustion chamber and free up all that 16 year old carbon. How much is a basic water injection system??
08-10-2002, 04:58 PM
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superjet.1,
Are you and danno thinking about doing a Guru water injection kit?? That would be a great idea for us turbo guys. If you are then, I might hold my money until your kit comes out.
Are you and danno thinking about doing a Guru water injection kit?? That would be a great idea for us turbo guys. If you are then, I might hold my money until your kit comes out.
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08-11-2002, 04:25 AM
#8
Race Director
One of the things that's missing from the line-up of products is an intercooler temp-in & out gauges. Aside from the hideously pricey Davtron units, there's nothing else. I think we might want to come up with an objective way of measuring performance improvements using hardcore numbers 1st, then we'll evaluate different ways of improving those numbers.
Some of the metrics in existence now is "HP/dollar-spent" or perhaps more appropriately for me, "seconds-per-lap-shaved/hours-spent doing upgrades."
Some of the metrics in existence now is "HP/dollar-spent" or perhaps more appropriately for me, "seconds-per-lap-shaved/hours-spent doing upgrades."
08-11-2002, 10:47 PM
#10
Race Director
The Davtron units are $300+ but have the capability of showing inlet temp, outlet temp and temp. difference readings. However, thermocouples are cheap, microcontrollers/PIC are cheap, I can't see why one can't be built for less than $100. More on this later as we're doing some research on this. Possibly hook it up to display other temperature data like coolant and oil temps as well.
08-12-2002, 12:41 PM
#12
How do you guys activate your sprayer systems ? Hope something else than just activate headlamp washers ! I would like to have a system which read intake manifold pressure and at the certain pressure point activates the sprayers.
Olli
'88 951
Olli
'88 951
08-12-2002, 03:45 PM
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Spearco has adjustable pressure switches that activate the pumps when like pressures go 10 psi +, but deactivate below 10 psi or what ever setting. The only way that the sprayer is going to be real effective is by adding ice into the water mixture before its sprayed.
08-16-2002, 04:38 AM
#14
Water injected into the intake is quite effective in lowering charge temps. However, to do it correctly, you should match the spray volume with the boost pressure, spray it at the most opportune pressure setting and monitor what's happening with ign. retard w/knock sensors (if equipped), air/fuel mixture and EGT's.
Spraying a fine mist of water on the intercooler is appropriate for heat soak conditions and/or to simply lower the air temperature going to the cooler approx. 18-20 deg. The liquid water itself is not actually doing the cooling. It is the act of the water evaporating (latent heat of vaporization) that reduces the temperature. Thus a coarse spray is not as efficient as a fine spray in reducing the temperature. There is only so much water one can practically carry. A coarse spray nozzle or two will consume large quantities of water in no time with most of it wasted as it drips on the ground. There are misting nozzles (producing 65 micron-size water drops) more suited for this task.
BTW, an external water mist system can also lower air temperature for anything that needs additional cooling. This includes brake systems, oil coolers, coolant radiators, race car interiors, etc.
Sherwood Lee
<a href="http://members.rennlist.org/911pcars" target="_blank">http://members.rennlist.org/911pcars</a>
MPC (multi-purpose-cooling) system at <a href="http://www.seinesystems.com" target="_blank">www.seinesystems.com</a>
Spraying a fine mist of water on the intercooler is appropriate for heat soak conditions and/or to simply lower the air temperature going to the cooler approx. 18-20 deg. The liquid water itself is not actually doing the cooling. It is the act of the water evaporating (latent heat of vaporization) that reduces the temperature. Thus a coarse spray is not as efficient as a fine spray in reducing the temperature. There is only so much water one can practically carry. A coarse spray nozzle or two will consume large quantities of water in no time with most of it wasted as it drips on the ground. There are misting nozzles (producing 65 micron-size water drops) more suited for this task.
BTW, an external water mist system can also lower air temperature for anything that needs additional cooling. This includes brake systems, oil coolers, coolant radiators, race car interiors, etc.
Sherwood Lee
<a href="http://members.rennlist.org/911pcars" target="_blank">http://members.rennlist.org/911pcars</a>
MPC (multi-purpose-cooling) system at <a href="http://www.seinesystems.com" target="_blank">www.seinesystems.com</a>
