engine management 2.2 n/a

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May 6, 2003 | 06:32 PM

fast legacy

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engine management 2.2 n/a

hey guys, i am going to be installing and running my ej-2.2 with high comp 11-1 pistons, torque cams, high speed valve springs, ported/polished heads, etc... and would like some advice

from what advice i have gotten on this board so far i think i can get the car on the road and drive it as long as i dont go over 4000 rpm, or so, at which point the fuel system will not be able to keep from running too lean.

so far i know i am going to need:

a/f gague ( will this work off the stock 02 sensor? )

something to increase fuel pressure (new pump, fuel pressure
riser? help!)

larger injectors (probably turbo legacy)

basically i am looking for advice and sources concerning these parts... i think an aftermarket ecu would be cool but dont know if its pratical/neccessary for my build

p.s. i have my heads on, this was the thing i was dreading the most, it really wasnt too bad... first head job and all. btw: 93 legacy L 5sp

thanks in advance for any advice!

May 6, 2003 | 07:59 PM

teiva-boy

Registered User

Joined: Nov 2002

Posts: 1,780

From: San Diego

Car Info: Boosted Geo Prizm

Quote:

a/f gague ( will this work off the stock 02 sensor? )

A narrow band sensor is useless for tuning. It's more of a dancing light then anything. What you want is a wideband O2 sensor and display kit. www.techedge.com.au has some reasonably priced ones. I have one

And they keep getting better with each revision

Quote:

something to increase fuel pressure (new pump, fuel pressure
riser? help!)

larger injectors (probably turbo legacy)

A fuel pump is a good idea, but an adjustable regulator is probably not. An adjustable regulator is more of a band-aid fix when you are running short of fuel. If you were experiencing some high IDC's, you could bump up fuel pressure a tad and make up for it. But that IMO is poor tuning. Thats where the larger injectors come in. That is the best way to compensate for a lack of fuel. Of course it's not the cheapest.

However to get the most out of your engine and it's performance, you should look into some sort of engine managment. I would say a LINK would be a good start as there is a lot of good vendors like i-speed on this board that can assist you for a very reasonable rate. Of course there are many other universal engine managment systems out there worth looking at as well like Autronic, SDS, TEC, and more.

May 7, 2003 | 04:53 PM

fast legacy

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the plan...

i think that my plan of attack is going to be to get the car running first (this way i only have to get an a/f gague, injectors, and fuel pump) to make sure that nothing has gone wrong in my build... in the meantime, i am going to research my options as far as aftermarket ecu's are concerned... i like the sound of the link computer because it can be tuned with a laptop... but i dont know if its more than i need or not. this will never be a turbo app. so i may not need a link. (i know nothing about these systems yet, so bear with me...)

as far as injectors are concerned, i am still trying to find out if stock wrx injectors are a viable replacement for my stock injectors... i shouldnt have to upgrade my fuel rails for a n/a application, should i?

thanks for the help so far!

May 12, 2003 | 04:02 PM

fast legacy

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injectors

anyone know about the interchangability of wrx and other model subaru fuel injectors? specifically, i am trying to find a direct replacement for my stock injectors on my 93 2.2.

if no one on the board knows, who do i ask? i am trying to pull my injectors right now so i can post dimensions and maybe get some help that way, but i cant get them out of the fuel rails... any suggestions?

thanks

btw. been looking at the link system and their north american website, but havnt seen any prices... anyone know what a wire-in model and a contrule module would cost? thanks again...