Welcome to the North American Subaru Impreza Owners Club Monday July 28, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Built Motor Discussion

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.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 10-03-2010, 10:16 PM   #1
Geek Guy
Scooby Specialist
 
Member#: 8151
Join Date: Jul 2001
Chapter/Region: South East
Location: Rally Tools LLC
Vehicle:
2002 WRX Rally Car
NASA Rallysport, yo!

Default Idle solenoid flow (02 WRX) compared to throttle body?

Hiya folks,

Looking to see if anyone knows how much (max) volume the idle solenoid (ISC) of a 2002 WRX will flow when compared to the throttle body? Clearly, it's a sizeable difference, but what I'm looking for is something like:

the solenoid will flow x% of the volume of the throttle body.

The reason is that I'm looking to use the ISC as the entire volume of air for an anti-lag setup, but need to ensure that it flows enough air (15-20%) so that I don't need to mess with cooking up a tune that has the throttle plate open (at 15-20%) all of the time. The ECU I'm using allows me to use the same solenoid that's use to control idle to control air bypass for anti-lag... just need to know the volume.

Anyone ever done a flow comparison?

-Eric
* Registered users of the site do not see these ads.
Geek Guy is offline   Reply With Quote
Old 10-04-2010, 05:35 AM   #2
jaxscuby
Sammo Hung
Moderator
 
Member#: 10613
Join Date: Sep 2001
Chapter/Region: South East
Location: F L O R I D A
Vehicle:
2002 USDM WRX
WRB

Default

idle air control valve...
it right on top of your throttle body..
jaxscuby is offline   Reply With Quote
Old 10-04-2010, 08:50 AM   #3
CKxx
Scooby Specialist
 
Member#: 33458
Join Date: Feb 2003
Chapter/Region: Tri-State
Location: PA
Vehicle:
Your BOV sounds lame
93 RX7+09 Forester

Default

It's almost certainly not capable of enough flow for anti-lag use. All the AL setups i've seen used a solenoid of some sort that bypassed the throttle body.
CKxx is offline   Reply With Quote
Old 10-04-2010, 09:45 AM   #4
Geek Guy
Scooby Specialist
 
Member#: 8151
Join Date: Jul 2001
Chapter/Region: South East
Location: Rally Tools LLC
Vehicle:
2002 WRX Rally Car
NASA Rallysport, yo!

Default

Quote:
Originally Posted by CKxx View Post
It's almost certainly not capable of enough flow for anti-lag use. All the AL setups i've seen used a solenoid of some sort that bypassed the throttle body.
Well, maybe not for max flow and effectiveness, but I'm curious if anyone has done the flow test.

I'm trying to figure out if it's worth my time to get a linear solenoid, rig it up to the cruise control spot on the throttle plate, add relays, etc. or to just do the 'easy' way and use the stock air bypass.
Geek Guy is offline   Reply With Quote
Old 10-05-2010, 01:42 PM   #5
Geek Guy
Scooby Specialist
 
Member#: 8151
Join Date: Jul 2001
Chapter/Region: South East
Location: Rally Tools LLC
Vehicle:
2002 WRX Rally Car
NASA Rallysport, yo!

Default

Just curious if anyone else has any input on this issue.
Geek Guy is offline   Reply With Quote
Old 10-05-2010, 02:31 PM   #6
WRteXan
Scooby Specialist
 
Member#: 223894
Join Date: Sep 2009
Chapter/Region: TXIC
Location: Sugaru Land
Default

I've seen IACV DC's ranging from 35-45% on a completely stock motor. I'd figure that's approximately 35-45% of its flow capacity. I guess 'every bit helps,' but I doubt it would be worth it.

Something you might look into is either a DBW conversion or an 06 air injection conversion and finding a way to run the air injection pump on command.
WRteXan is offline   Reply With Quote
Old 10-15-2010, 09:16 AM   #7
Geek Guy
Scooby Specialist
 
Member#: 8151
Join Date: Jul 2001
Chapter/Region: South East
Location: Rally Tools LLC
Vehicle:
2002 WRX Rally Car
NASA Rallysport, yo!

Default

So, I got the answer I needed from a fellow competitor.

Just run the ISC as the ALS bypass. It has PLENTY of flow to run ALS effectively.

<burns>Excellent!</burns>
Geek Guy 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Wanted, IC to Throttle body hose! wRxbeater11 Tri-State Area Forum 0 08-03-2004 06:26 PM
WTB hose from intercooler to Throttle body (stock is fine) instant Canada Region Forum 3 07-27-2004 12:33 PM
WTB: Intercooler to Throttle Body Intercooler hose -=Ice-T=- Private 'Wanted' Classifieds 0 05-28-2004 09:20 PM
Intercooler to throttle body hose L2W Private 'Wanted' Classifieds 2 09-03-2003 03:56 PM
Intakes connected to plenum VS. Intakes Connected to throttle body - opinions pls. JaiMak Normally Aspirated Powertrain 16 10-19-2000 10:04 AM


All times are GMT -4. The time now is 07:45 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.