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

Subaru Impreza Forum

LinkBack Thread Tools Display Modes
Old 23 Aug 2013, 09:46 PM   #1 (permalink)
Fresh Scooby
Join Date: Aug 2013
Posts: 4

hi guys,

New to the forum, and new to the car. As background info i'm coming from ford 60,70,80s technical knowledge - so this car is like a leap into the future lol.

So I have an import 94 wrx, a couple of oddities as the chassis plate numbers the engine and trans as sti - i've read the various forum discussions about this, and to be honest am still none the wiser. The ecu is not sti as far as i can tell - 2C - although weirdly someone has piggy backed two wires from the attaching plugs (assuming some kind of simple immobiliser). A question for another day lol.

Anyway, loads to research. Currently I'm going through each area and trying to understand it's function and make sure it's condition is good. I started with an oil and filter change (I have a very loud tappet - still no better). Today I've looked at the air filter side of things, and hence my first pestering question on the forum!

There are two resonator boxes in the system. One in the wing, one after the maf sensor. I've seen the various threads discussing removal of resonators, but they seem to be mainly for later scoobies with an air scoop from the front of the grill?

I can see benefit in removing the pre filter resonator on mine, but will replacing the post maf resonator with a plain piece of pipe work upset the maf?

Also, do minor changes like this truly upset the fueling so much that map changes are needed to stay safe?

Cheers in advance,

steve the noob
Offline   Reply With Quote
Old 06 Sep 2013, 01:20 PM   #2 (permalink)
Fresh Scooby
Join Date: Aug 2013
Posts: 4
Re: resonator

any thoughts guys? I've not been able to find much related to this setup.
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

Similar Threads
Thread Thread Starter Forum Replies Last Post
2007 2.5L bad resonator yule1111 Subaru Impreza Discussions 5 22 Jul 2010 07:44 PM
Broken Nipple On Resonator Box! Claire2242 Technical General 1 03 Jan 2010 01:38 AM
Resonator box? Kedlestone Subaru Impreza Discussions 9 05 Oct 2009 07:56 PM
Resonator box.... mcc_boz Subaru Impreza Discussions 12 04 Nov 2005 08:25 PM

All times are GMT. The time now is 08:48 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.