View Full Version : Automatic intercooler spray?

Andrew Bolton
7th April 2000, 13:36
A little project I have in mind: the intercooler spray on an Evo is manual, as readers will probably know, and I never remember to push the button when I am going for it. I was thinking of trying to rig something up, maybe on a pressure switch, that activated the spray at high pressures. Anyone ever done anything similar? Any advice? I think the switch just causes a single squirt, no matter how long you hold it, and if this was a function of the mechanism, that would probably help a lot. I was thinking of getting an adjustable pressure switch (where from?) and set it to close at 0.9-1.0 bar, when the temp is probably pretty high. Alternatives are monitoring the temp of the air post intercooler, or even having a switch on the throttle to squirt at full throttle.


Ta, Andrew

7th April 2000, 14:28

Pressure switch from Aquamist, see: http://www.aquamist.co.uk/sl/plist/frm.html

Part No. 806 155 about 24 pounds (11th item down)

Link the push button through this, set the pressure level and it will come on when ever the boost reaches the pre-set level.

What I don't know is if the EVO spray only stays on for a certain time, i.e. you press the standard button and it sprays for a fixed number of seconds etc.

I'm sure you will work it out.... :)



Kevin Atkins
7th April 2000, 23:00
Hi Andrew

Hope you had a good trip, I was only talking to Mark M.A.D. the other day about the auto spray, and he is making it fully automatic on the new ECU.It will be activated by air intake temperature and boost so plenty of bottle filling ahead.
The work is now underway and we should see a finished conversion by mid may if all goes well.

Regards Kevin

7th April 2000, 23:15
I am planning to hook up a little switch to the gas pedal to trigger the spray at full throttle on my Evo. On my car (Evo I)it will spray for as long as you hold the switch down.

8th April 2000, 00:29
Dear Mr Morris dancer http://bbs.22b.com/ubb/wink.gif

According to Mr Croney your flame outs last at least 10 yards at 130MPH so please take note and get extra water on board! http://bbs.22b.com/ubb/wink.gif LOL

Andrew Bolton
10th April 2000, 09:14
I don't think the water will put the fire out http://bbs.22b.com/ubb/smile.gif

For other owners information, the track is not the only place where it will flame. On the French toll roads where police apparently don't exist http://bbs.22b.com/ubb/smile.gif, I was apparently flaming on lift off above 110 or so. Although it was at night, so it may have made the apparently white flames more easily visible.

Fun fun fun http://bbs.22b.com/ubb/smile.gif

Thanks for all the ideas about sprays. Seems I'm not the only person to think of it.