im looking to wire up my manual intercooler water spray system to automatic aswell so im in need of an adjustable presure switch. anyone know where i could get one? can you get one to fit in a vacume line or will i have to tap a thread in the ic?
thanks

 

Have you considered something like a SPA dual guage that monitors boost and charge temp?
Each channel has an adjustable alarm level that can crank open a relay to operate the spray.
This would let you spray at certain temps in combination with boost levels - the trigger levels being totally adjustable.

Nick

 

cheerz nick, i havnt heard of these guages, where do you get them from?

james

 

Have a look at:
http://www.spa-uk.co.uk/design/dualg...achometers.asp
They can be bought direct or bought elsewhere for about 20% cheaper.
The description doesn't do justice to what they can really do.

Nick

 

Rentonone check here : http://www.aquamist.co.uk/sl/plist/frm-4.html

Think this is what you are thinking of??
You want the Normally 'open' one Part no : 806 155
Plumb into your Vacuum from Inlet manifold, and set it to 'close' circuit at whatever boost pressure you want (upto 2bar)

 

cheerz mate, does that one need to be drilled and tapped into the ic? is it possible to get one that goes in a vacume hose?

 

the dual boost and temp guages look good but ive already got a boost guage fitted and a inlet temp display so i think im just giong to go with an adjustable boost switch fo my intercooler spray. thanks anyway.

 

http://cgi.ebay.co.uk/ws/eBayISAPI.d...MEWA%3AIT&rd=1

 

thats exactly what im after but he,s ended the auction and dosnt sell them anymore.

 

Did you not look at the link I posted yesterday??

The switch from ERL works off of a vacuum. Just T off from one of the vacuum lines on your Inlet Manifold, plumb it into the end of the switch.
The other end has an adjustable screw (factory set to 10psi IIRC)

The 2x electrical spades are to wire from the switch in dash, out to the motor that activates the water spray.

Simple. I had one rigged to the Headlight washer motor to use as an IC water Spray system. Set the switch to around 14psi, so that when boost hit 14psi, it activated the water spray.