Nick200

I have just seen somebody write about using the useless headlight spray tubes to spray the I/c instead, has anybody done it on here? sounds easy!
But is it?

Dyney

Had planned to try this Friday but didn't get time

Nick200

I think I'll nip to scoobymania on sat and get some of the sti nozzles, pick some pipe up from halfords and give it a go.

Leeroy

Yes, very simple. I got a nozzle from GGR (and some tube) and installed under the scoop. Iirc, a new feed may be needed for the switch cos it's only active when the lights are on...

dhorwich

this is my basic system..!!!
http://www.scoobynet.co.uk/bbs/threa...ThreadID=97289

Dan

iain atkins

I did mine over Easter D

Although i used some 'misting' jets (4 of them) from my local garden centre, they give a much better spray pattern than the STi jets IMHO.

Gonna install a pressure switch over this bank holiday to make it automatic, (set it to operate for a set amount of time at a chosen boost pressure).


Iain

Vinesh

how would the pressure switch work and how does it get connected?

iain atkins

Vinesh,

It's used with a timer relay (so it will spray for say 3 seconds regardless of how long it's pressed), and plumbed into the pressure system.

I can set it to activate at a desired boost pressure (i.e. 15psi). So when this pressure is reached it will activate the waterspray.

Gonna be tackling the pressure switch side over the coming weekend.


Iain

iain atkins

Oh and there will be a switch to turn off the automatic spray

NotoriousREV

I always liked the look of this:

Intelligent Intercooler Spray

It sprays based in I/C temp and injector duty cycle i.e. if it's temp is OK but you're boosting it doesn't spray or if the temps are up but you're not boosting it doesn't spray, but if it's hot and your boosting it does.

The electronics bit is about £90, the nozzles are £15 each for decent agricultural spray nozzles (which you could source over here) plus you need a pump and reservoir.

Obviously it costs more than just using your headlight washers, but it's likely to work better and use less water without costing a fortune.

Vinesh

Iain

How will the switch or I/C spray know that 15psi is being used?

dhorwich

Vinesh,

I think its like a solonoid that is pressure activated, so it will have a feed from some where on the inlet manifold and when the switch sees 15psi it activates the switch to give your intercooler water spray motor 12volts or makes the circuit.

Dan

CataIunya

You can pick up the switch from RS electronics, I was looking into this. There is another post somewhere where I put the part no's in.

iain atkins

Exactly as Dan said.

I've had one of these switches made for me (cheaper than Maplins etc, as its directly from the supplier)

It uses as small acutator type thing to activate a microswitch.

Cheers



Iain