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Old 09-12-2005, 03:59 AM   #1
93subi
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Question ECU's

I am looking to get more power out of my frakenstien motor. what I would like to do is replace my current 1993 1.8L ECU for a 1991 legacy 2.2L ECU. has anyone done this before or can it even be done? I know the plugs from the 1.8 harness are probaly different from the 2.2 harness but is there anyway I can get around this, like wire the 2.2 plugs onto the 1.8 harness,
Mike
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Old 09-12-2005, 12:32 PM   #2
Legacy777
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Why do you think the 2.2 ECU is going to give you any more power?

Personally I wouldn't spend the time swapping connectors over for questionable performance gains...or losses.
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Old 09-12-2005, 12:40 PM   #3
83Rabbit
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Youll need the 2.2 intake manifold/TB and all connectors/sensors and the wiring harness and a few other odds and ends IIRC.
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Old 09-12-2005, 01:48 PM   #4
93subi
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guess its not worth it then. thanks for the help
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Old 09-12-2005, 02:41 PM   #5
83Rabbit
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itd be more worth it and more beneficial if your doing future mods to get an S-AFC or Emanage or something along those lines to tune your car a bit than swapping over all the parts for a minimal gain if any.
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Old 09-12-2005, 08:32 PM   #6
93subi
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Quote:
Originally Posted by 83Rabbit
itd be more worth it and more beneficial if your doing future mods to get an S-AFC or Emanage or something along those lines to tune your car a bit than swapping over all the parts for a minimal gain if any.
what would you recomend? emanage or the S-AFC
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Old 09-12-2005, 09:07 PM   #7
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The EM can control more things, fuel, ignition, vtec control if so equipped. You can also hook up a pc to the unit and have even more control over the fuel curve. The S-AFC is a self contained unit and has a limit on the fuel manipulation, that i believe is lower than the EM. Personally if you can get the wiring done correctly I would go with the EM. The EM looks like a mini amp too
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Old 09-12-2005, 10:01 PM   #8
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yah dude. in a couple weeks im wiring the safc to my 95 1.8L
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Old 09-12-2005, 11:52 PM   #9
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post you results im sure my bro and tons of other guys need it
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Old 09-13-2005, 12:12 AM   #10
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i plan to, if we can change settings without breaking stuff. no wideband. i have noteiced the lack of info on this for the 1.8L thoh...
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Old 09-13-2005, 08:30 AM   #11
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well, as a performance upgrade, I think the EJ22 manifold has bigger ports and allows for a better overall flow.
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Old 09-13-2005, 09:09 AM   #12
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Quote:
Originally Posted by JonofScio
well, as a performance upgrade, I think the EJ22 manifold has bigger ports and allows for a better overall flow.
The manifold doesn't have bigger ports, the heads have larger valves. So unless you swap the heads, you're not going to gain anything.
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Old 09-13-2005, 09:51 AM   #13
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Id reccomend the Emanage if you have the extra dough to spend. S-AFC I would do if I got the hookup on it, like if my friend was selling it for cheap and it came as a good deal. I would install it, see how it suited my needs and go from there. But if your starting cold, you might as well go ahead and drop the extra money on something that will be even more useful later.
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Old 09-13-2005, 10:51 PM   #14
93subi
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how much is an EM system gona set me back?
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Old 09-19-2005, 07:38 AM   #15
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i looked myself, as ai42's 1.8T conversion got me started here.

the emanage is found here along with other optional parts(prices):
http://www.greddy.com/prod_e_manage.htm

I personally would prefer the emanage over the safc, but the emanage is a bit more than i can afford right now. that, and the safc was priced right.
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Old 09-19-2005, 11:59 AM   #16
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Quote:
Originally Posted by Legacy777
The manifold doesn't have bigger ports, the heads have larger valves. So unless you swap the heads, you're not going to gain anything.
Actually,
The Ej22e heads AND manifold have 1/8" larger ports than the Ej18 parts do. I have measured them myself...
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Old 09-19-2005, 01:08 PM   #17
Legacy777
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Quote:
Originally Posted by Matt Monson
Actually,
The Ej22e heads AND manifold have 1/8" larger ports than the Ej18 parts do. I have measured them myself...
I see. I think (took it) though that he just wanted to swap the manifold...which wouldn't really work.
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Old 09-19-2005, 09:54 PM   #18
93subi
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i have actually herd that the 1.8 intake monifold was slightly tuned as the subaru tech put it. he sayed they are equal lenght, does any one no if this is true?
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