Water Spray

[GT4 20]

Any electronic wizzos out there?
I'm lookin at making the WAI more efficeint on my GT4. After lagging the bottom of the unit itself, I'm getting a larger pre-rad made up and would like to rig up a decent water spray unit to help increase the heat transfer.
The WRC version does already come with a non functioning system, but I'd like something a little more trick.
A high power pump, nozzles etc aren't an issue - what I'm looking at doing is fitting a system which is boost activated and will run for say 3 seconds, switch off for 3 seconds, switch on for 3 seconds, etc while on boost. That way, any water mist on the pre-rad will have time to evaporate before the next lot is sprayed. Otherwise there is the risk of too much water collecting on the rad which will then fail to evaporate and as a result, it won't transfer the heat.
Any idea what electronic parts I need to get?
Cheers
Gary

[sergei]

you can build a 555 circuit wich will do that and it only requires about 10 parts at most...
just google for "555 timer"...

[GT4 20]

Cheers

[QikStarlie]

or if your too lazy to build that, you can just but a 12v relay with built in timer from an electrical shop. can set anywhere from .1 sec to 24hours if i remeber right

[GT4 20]

Or if I'm really lazy, I could simply buy one of these - http://www.prostreetonline.com/buy/cusco_intercooler_sprayer_kit/00b-732-a/
Gary

[sergei]

But if you are lazy but not very lazy just buy components (555 timer, box, board, and 12V relay, no need for resistors or capacitors as I have some range here) and for $5 I will put all together....

[sergei]

or you could use ST165 factory Intercooler Controller to do that, in fact I think this unit does what you need, and I have one here laying and waiting for you to be picked up
I will test it some time in weekends and see exactly what it does (it is better have first hand experience then some internet fact)...

[neo]

The really Cheap, ultra lazy way is to use a 'flaher can' aka the relay thats used for you indicators. Old school ones will be afew bucks, or free at steal-a-part... Get a three pin one and the pin should be on the back or in the bosch catalog...

Triggered off some boost switch and wa-la.. on off on off on off on off haha


... using the very old ones, u can put some ceramic resistors in line to reduce the voltage thus slow down the cycles.. but this method would require another relay...

[Si]

http://www.jaycar.co.nz/productView.asp?ID=KC5379&CATID=&keywords=timer&SPECIAL=&form=KEYWORD&ProdCodeOnly=&Keyword1=&Keyword2=&pageNumber=&priceMin=&priceMax=&SUBCATID=

This is a very sophisticated timer which can be adapted for two different types of uses. The first is ‘one shot’ operation, which can be used to keep electric windows active, or a thermo fan running for a period after ignition is switched off etc. The second is a ‘pulse’ type operation, which can be used to squirt water spray for 1 second every 9 seconds. The uses are endless, and the time is adjustable from 0.1 seconds, to 16.5 minutes via easy to use (and accurate) digital switches. Kit supplied with PCB, and all electronic components


PM me for a good price

[Stealer Of Souls]

http://www.jaycar.co.nz/productView.asp?ID=KC5379&CATID=&keywords=timer&SPECIAL=&form=KEYWORD&ProdCodeOnly=&Keyword1=&Keyword2=&pageNumber=&priceMin=&priceMax=&SUBCATID=

This is a very sophisticated timer which can be adapted for two different types of uses. The first is ‘one shot’ operation, which can be used to keep electric windows active, or a thermo fan running for a period after ignition is switched off etc. The second is a ‘pulse’ type operation, which can be used to squirt water spray for 1 second every 9 seconds. The uses are endless, and the time is adjustable from 0.1 seconds, to 16.5 minutes via easy to use (and accurate) digital switches. Kit supplied with PCB, and all electronic components


PM me for a good price

Damn... that was my suggestion...