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EJ22T/2.5 SOHC ECU help needed!
Posted: Mon Apr 09, 2007 11:37 pm
by Jutboy
Hey all....In the next two weeks I'm going to start my EJ22T build up
I have 2.5 SOHC heads/intake + cams
A 03' WRX turbo and intercooler
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I need to pick out my EMS and my injectors.....Is there anyway I can use the stock ECU (flashing it or something like that?)
Whats the cheapest/easiest option I can go for Engine Management?
What cc injectors should I get?
Thank you so much for the help - Jutboy!!!!!
Posted: Tue Apr 10, 2007 3:16 am
by douglas vincent
Easiest in my mind is the PP6.
How much boost are you going to run? You should get at least 550 STI side feeds to be safe.
Posted: Tue Apr 10, 2007 3:46 am
by Jutboy
I was planning on running 15psi...
Posted: Tue Apr 10, 2007 3:49 am
by gto7419
Stock ecu cannot be reflashed (disclaimer - unless you are nico).
The yellow sti injectors that doug suggested are perfect and fit in 92-94 n/a rails...
For em I would suggest the emanage ultimate. Dont bother with the blue - I think it would have trouble scaling back enough fuel with sti injectors for you to even idle properly...
- this is the closest you can get to standalone while retaining the stock ecu.
The pp6 has had some really bad reviews, but looks tempting. I dont know - some people like it... I think some people have a lot of idling issues... Maybe this was fixed with the newer version?
If you have a legacy turbo ecu and not an n/a ecu, you should be fine with the ignition curve. If you only need to alter fuel, you should probably be ok with just an apexi safc II. Cheap and they work.
I am going to run an apexi safc II and an msd dis2 which will be able to run retarded ignition above 4000 rpm. (n/a ecu)
I personally also bought a J&S safeguard ultra. My biggest concern running non-standalone type em is detonation. Not being able to get a proper tune is going to haunt me. The J&S is able to retard timing according to level of detonation occuring. Im hoping this will help save my engine if anything goes awry... Im also going to run a wideband, electric boost, electric oil pressure, and electric egt gauges. - Its very important to know whats going on in your engine...
Anything else?
Posted: Tue Apr 10, 2007 4:44 am
by douglas vincent
What vehicle and ECU is going to be running this?
Posted: Tue Apr 10, 2007 11:20 am
by Jutboy
Geez - I didn't even post that did I....the car is the 91 Legacy Turbo SS.