Welcome to the North American Subaru Impreza Owners Club Friday March 29, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo)

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 05-16-2023, 10:25 AM   #26
m5gorrf
Scooby Newbie
 
Member#: 468210
Join Date: May 2017
Chapter/Region: BAIC
Location: Calif foothills
Vehicle:
2006 WRX Wagon
Blue

Default

Agreed, a test would be a good thing to see. All are welcome.

As to cost, the vented carbon fiber hood came with a 2005 splitter with the spray nozzle in it, that I am mounting in the hood. I am using a $17 aftermarket reservoir with pump to feed the IC spray. The major cost will be the OEM switch if I find value. As this is a wagon the OEM tank is not a viable option & I have room where the 2nd air blower normally resides, as I am running 2005 B25 heads on this engine. All forged internals restricted to 20 Lbs of boost.

When the ambient temp hits 104, I will do some data logging & post the results. Remember, I travel mountain roads with an elevation increase of over 2000 feet in not to many miles in that heat. So anything will help... just to what extent.

All the continuing info & debate is excellent!!!


Quote:
Originally Posted by rtv900 View Post
^this is my entire point
personally I do not think the water will evaporate when hitting the intercooler, I think it will just run through it
I understand that will still remove a little more heat than air alone, but not much IMO to be worth the setup.

Bottom line, unless somebody does a legit test with a manifold temp monitor at a good steady state load and speed (like on a long stretch of highway with a consistent grade, full boost for a solid 10 seconds or so tested with and without water) we simply won't really know.

That would actually be a pretty cool test if somebody has the set up to do it
* Registered users of the site do not see these ads.
m5gorrf is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 05-16-2023, 10:43 AM   #27
cboggess
Scooby Specialist
 
Member#: 30804
Join Date: Dec 2002
Chapter/Region: SWIC
Vehicle:
87 Yugo
Red

Default

Quote:
Originally Posted by rtv900 View Post
^this is my entire point
personally I do not think the water will evaporate when hitting the intercooler, I think it will just run through it
I understand that will still remove a little more heat than air alone, but not much IMO to be worth the setup.

Bottom line, unless somebody does a legit test with a manifold temp monitor at a good steady state load and speed (like on a long stretch of highway with a consistent grade, full boost for a solid 10 seconds or so tested with and without water) we simply won't really know.

That would actually be a pretty cool test if somebody has the set up to do it
Just get a GD owner with speed density to go for a drive and log intake temp. There should be at least a couple of guys running a temp sensor on the intake...
cboggess is offline   Reply With Quote
Old 05-16-2023, 11:11 AM   #28
K3rm1tth3fr0g
Scooby Specialist
 
Member#: 508105
Join Date: Nov 2019
Chapter/Region: NWIC
Location: Greater Seattle Area
Vehicle:
Link G4X flex tuned
02' EJ205 20G 6MT wagon

Default

Quote:
Originally Posted by m5gorrf View Post
Agreed, a test would be a good thing to see. All are welcome.



As to cost, the vented carbon fiber hood came with a 2005 splitter with the spray nozzle in it, that I am mounting in the hood. I am using a $17 aftermarket reservoir with pump to feed the IC spray. The major cost will be the OEM switch if I find value. As this is a wagon the OEM tank is not a viable option & I have room where the 2nd air blower normally resides, as I am running 2005 B25 heads on this engine. All forged internals restricted to 20 Lbs of boost.



When the ambient temp hits 104, I will do some data logging & post the results. Remember, I travel mountain roads with an elevation increase of over 2000 feet in not to many miles in that heat. So anything will help... just to what extent.



All the continuing info & debate is excellent!!!
Why limited to 20psi
K3rm1tth3fr0g is offline   Reply With Quote
Old 05-16-2023, 11:49 AM   #29
rtv900
Scooby Guru
 
Member#: 428511
Join Date: Aug 2015
Location: philadelphia
Vehicle:
2016 STI

Default

Quote:
Originally Posted by cboggess View Post
Just get a GD owner with speed density to go for a drive and log intake temp. There should be at least a couple of guys running a temp sensor on the intake...
yeah I wish I had a temp sensor on both my forced induction manifolds

I always wonder what the deal is with my water to air intercooler when I'm in traffic and how long it takes to get cooled down again

all the useless crap bells and whistles they put in these new cars and they don't have that as a standard display option
rtv900 is offline   Reply With Quote
Old 05-16-2023, 04:00 PM   #30
m5gorrf
Scooby Newbie
 
Member#: 468210
Join Date: May 2017
Chapter/Region: BAIC
Location: Calif foothills
Vehicle:
2006 WRX Wagon
Blue

Default

Quote:
Originally Posted by K3rm1tth3fr0g View Post
Why limited to 20psi
Longevity
m5gorrf is offline   Reply With Quote
Old 05-31-2023, 02:43 PM   #31
blurred
Scooby Specialist
 
Member#: 47143
Join Date: Nov 2003
Location: Toronto
Default

Quote:
Originally Posted by cboggess View Post
Just get a GD owner with speed density to go for a drive and log intake temp. There should be at least a couple of guys running a temp sensor on the intake...
I used to do this and do a few hwy pulls, then spray the crap out of the intercooler and do some more, and some while holding the button down.... No appreciable change.

Even while sitting in traffic, no real change.

I was disappointed to be honest but then again I was using the intercooler sprayer res as the water/meth tank as well so i didn't mind never using it again
blurred is offline   Reply With Quote
Old 05-31-2023, 02:53 PM   #32
19std
Scooby Specialist
 
Member#: 510366
Join Date: Jan 2020
Default

I mean what were you expecting? Its a 4 banger with washer fluid being haphazardly splashed in the injun bay.

Last edited by 19std; 05-31-2023 at 03:02 PM.
19std is offline   Reply With Quote
Old 05-31-2023, 07:37 PM   #33
blurred
Scooby Specialist
 
Member#: 47143
Join Date: Nov 2003
Location: Toronto
Default

Quote:
Originally Posted by 19std View Post
I mean what were you expecting? Its a 4 banger with washer fluid being haphazardly splashed in the injun bay.

What are you on about? It's an OEM intercooler sprayer and i was testing its effectiveness on IATs to confirm my suspicion that it would not show any appreciable difference. So it's not haphazard, and i was spraying water as intended (yes also tried the washer fluid later as well as accidentally every time I adjusted my headlights or turned on/off my fogs)
blurred is offline   Reply With Quote
Old 05-31-2023, 08:16 PM   #34
19std
Scooby Specialist
 
Member#: 510366
Join Date: Jan 2020
Default

You know the stock map doesnt even pull timing till 120 right? It pulls like 4 deg. At 60 it advances like .3. VTEC levels yo.

The timing jumps are like:

60F
80
100
120F

So lets say your stopped in traffic and your iats hit 130. Your super wqsher fluid will need to pull 70F to get to teh goood timings.
19std is offline   Reply With Quote
Old 05-31-2023, 10:40 PM   #35
blurred
Scooby Specialist
 
Member#: 47143
Join Date: Nov 2003
Location: Toronto
Default

Quote:
Originally Posted by 19std View Post
You know the stock map doesnt even pull timing till 120 right? It pulls like 4 deg. At 60 it advances like .3. VTEC levels yo.



The timing jumps are like:



60F

80

100

120F



So lets say your stopped in traffic and your iats hit 130. Your super wqsher fluid will need to pull 70F to get to teh goood timings.
I'm looking around for someone with a stock map.... Sorry dont see anyone like that here...

Just making sure you understand what I'm talking about... A tiny dataset reading IATs from a post intercooler sensor instead of the OEM sensor in the maf at the airbox reading inlet air temps... I really don't care what a stock map/compensation looks like as it's irrelevant
blurred is offline   Reply With Quote
Old 05-31-2023, 10:56 PM   #36
19std
Scooby Specialist
 
Member#: 510366
Join Date: Jan 2020
Default

Quote:
Originally Posted by blurred View Post
I'm looking around for someone with a stock map.... Sorry dont see anyone like that here...

Just making sure you understand what I'm talking about... A tiny dataset reading IATs from a post intercooler sensor instead of the OEM sensor in the maf at the airbox reading inlet air temps... I really don't care what a stock map/compensation looks like as it's irrelevant
Ok you missed the point. On a 70 degree delta, we are talking 4 deg of timing compensation.

What are you running? 6?
19std is offline   Reply With Quote
Old 05-31-2023, 11:19 PM   #37
blurred
Scooby Specialist
 
Member#: 47143
Join Date: Nov 2003
Location: Toronto
Default

Quote:
Originally Posted by 19std View Post
Ok you missed the point. On a 70 degree delta, we are talking 4 deg of timing compensation.



What are you running? 6?
Nope, i didn't miss your point because we are talking about something very basic as heat not timing comps so again, irrelevant.

If you want a discussion about timing comps go and log your post intercooler IATs, your airbox IATs, and then start a thread about your findings.
blurred is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 06:36 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.