Go Back   Subaru Impreza Forum - WRX STI Rally Performance Tuning > Subaru Impreza Technical Area > Technical General

Subaru Impreza Forum

Panel filters, Induction and cold air intakes
LinkBack Thread Tools Display Modes
Old 17 Sep 2005, 02:28 PM   #1 (permalink)
Scooby Fanatic
johnboy's Avatar
Join Date: Mar 2005
Location: Richmond Surrey/Isleworth Middx
Posts: 800
Panel filters, Induction and cold air intakes

Does anyone have any suggestions - I have a K&N panel filter in at present but I think this may be restricting performance on 2001 WRX with Ecutec and exhaust finally done - surely basic induction kits (Powertec etc) are good but suffer from underbody heat and the "cold air" systems (APS kit) must get moisture in from the inner arch. Anyone got some suggestions - which route is best to follow???
Offline   Reply With Quote
Old 17 Sep 2005, 04:21 PM   #2 (permalink)
Cool Scooby
Paid & Proud
DJ_MOD_WRX's Avatar
Join Date: Sep 2005
Location: Huddersfield (formerly doncaster)
Posts: 273
Send a message via MSN to DJ_MOD_WRX
having messed around with this on a dont laugh, vtr saxo, i found the best resuts on a friends rollers was from an enclosed filter which in my case was a bmc cda, panel filter in std air box was next best and a bare cone was the worse, on my wrx i have made an air box out of ally to enclose the filter
D-Tech Peformance - New premises open March 2008 Dewsbury Road, Ossett, Wakefield Nr Leeds WF5 Dyno Dynamics Rolling Road Centre
Offline   Reply With Quote
Old 17 Sep 2005, 04:55 PM   #3 (permalink)
Veteran Scooby
mr freeze's Avatar
Join Date: Nov 2004
Location: notts
Posts: 4,343
Send a message via MSN to mr freeze
unless you can fully enclose an open cone mate i'd stick with a panel filter tbh .... :wink: you dont want maff probs now do you ............... 8)
Offline   Reply With Quote
Old 17 Sep 2005, 06:07 PM   #4 (permalink)
Obsessed Scooby
Paid & Proud
PeterUK300's Avatar
Join Date: Apr 2004
Location: East Herts
Posts: 12,081
Get a Green Cotton Panel filter.... Proved to be the best as seen in ScoobyMagazine

You really only need induction kits when running BIG BHP.
All the best

Offline   Reply With Quote
Old 17 Sep 2005, 07:58 PM   #5 (permalink)
Fresh Scooby
Join Date: Sep 2005
Posts: 6
Same as you, but with a classic. Was toying with the idea of putting a cold air tube from the bottom of the U bend (with resonator removed), into the bumper sitting below the indicator. Im sure im not the first, would be pretty effective though, and the principles of a conical in a box will be the same? :?
Offline   Reply With Quote
Old 19 Sep 2005, 03:28 PM   #6 (permalink)
Dedicated Scooby
Nelson's Avatar
Join Date: Apr 2004
Location: South West
Posts: 2,659
A good Cold air feed is always worth adding if you can. A known problem with induction kits on Scoobs is that the cone sucks in warm air in its normal position - which generally means a loss of performance.

However a cold airbox with a good cold air feed is very worthwhile and can give a healthy performance increse The inner wing is a good place to fit an air feed and just above the indicator is as good a place as any for forced induction
Offline   Reply With Quote
Old 27 Sep 2005, 04:26 PM   #7 (permalink)
Fresh Scooby
Join Date: Sep 2005
Posts: 5
cold air feed

can i put a cold air feed straight into my air filter box by drilling and mounting the pipe just above filter. 8)
Offline   Reply With Quote


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
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
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT. The time now is 09:17 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.