Bil

on the 2006 Sti, does anyone know where the water is actually released from into the intercooler. The tub of water sits in the back of the car, but which tubing does that flow through to get to the intercooler??

StudentScooby

i wouldnt have thought its in the back

IanK Spec C

The nozzle is in the plate mounted in the bonnet under the scoop. It sprays the water into the airflow before it hits the intercooler.

Regards,

Ian
p.s. I though 2006 cars has the tank under the bonnet apart from the 12L spec C tank which is mounted behind the rear seats!

ARM-Scooby

2006 uk sti's sit in the boot as per earlier versions

Bil

thanks

now i understand where the water is being sprayed from


ps yes the tank holder for the intercooler spray sits in the boot of the car next to the spare wheel , in that sort of area

Chelspeed

Just to clarify. There's two ways to use water sprays to cool the air being fed to the engine.

One way is to spray it into the inside of the intercooler, directly into the air being fed to the engine. The water turns to steam in the combustion chamber and cools the air charge directly. Systems like Aquamist do this.

The other method is to spray it onto the outside of the intercooler. The water cools the outer surface of the intercooler and indirectly also cools the air charge inside the intercooler. This is how the standard Subaru spray water system works.

Your comment about spraying water into the intercooler makes me think you think it's the first but it isn't, it's the latter. WRC scoobies use both systems but the former is being banned for next year. My mates who work with both call the former "water injection" and the latter "the cropsprayer" to differentiate the two.

dynamix

iTrader: (3)

Has anyone got any idea on what would be needed to make the intercooler spray come on automatically on the 06 version like the previous sti's?

the 06 is just a manual switch which seems a bit pointless to me

dave_sw1

I heard Evos inject into the head and the heat shock can crack the heads!

jd5217

http://www.turbobits.co.uk/acatalog/...ter_spray.html

dynamix

iTrader: (3)

thanks but just want to know what biut is missing from the 06 STI that the previous 02 STi (that has auto sprayer attached)

the 06 STi has manual water spray already

ScuuBdoo

the water bottle for my intercooler spray is in the engine bay behind the drivers side headlamp.

whats all this "tubs in the back" business?

wrx_yank

of coarse the resevoir is in the trunk(boot) what sence would it make to spray hot water from the engine bay on the inter-cooler....wouldent that make it an inter-heater?

jd5217

are you sure the 02STI uk had auto spray.

When i had the auto spray fitted the wiring was behind the switch (cut) and i believe there are sensors needed for the auto as it works on boost pressure.

http://www.s-o-r.co.uk/Advanced_Memb...y%20System.pdf

ralphandcarol

To make an auto version you will need an Auto dash switch and a vacuum operated pressure switch (normally open). A bit of wiring and a bit of plumbing and you can get a fully auto sytem to work alongside your manual set up.

Ralph

jd5217

i managed to get an auto switch from a JDM impreza through http://www.gradea-subaru.co.uk/

dynamix

iTrader: (3)

well my one def had it - it was a euro import though whether that makes a difference or not.

cant think why they would not make it auto on the 06 though - weird.... will look into this - cheers for the links guys

pippyrips

my 04 jdm sti has both auto and manual

dynamix

iTrader: (3)

anyone know whether the 06 ECU sends out a signal that could be used to trigger the water spray?