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Old 02-11-2004, 05:32 PM   #1
Scooby Specialist
Member#: 10467
Join Date: Sep 2001
DOHC 2.0 Hybrid

Default EJ20 Shortblock into my RS(What management?)

I am putting a JDM ej20 shortblock into my RS. What is the bare minimum that I would be able to get by with management? Could a simple AFC control the added amount of fuel that I need with the beefier shortblock and the bigger injectors?

Also, Does I-Speed do re-flashes like this for my ECU?(if that is the case then I don't think I would even need an AFC, correct?)
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Old 02-11-2004, 07:38 PM   #2
Scooby Newbie
Member#: 16336
Join Date: Mar 2002
Chapter/Region: NWIC
Location: Eugene, OR
2002 WRX Wagon


Why not just get the jdm ej20 ecu with teh shortbock? Your going to have to redo your wireing harness anyway (correct me if i'm wrong). Then you can go with a reflash and be very well off.
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Old 02-11-2004, 07:47 PM   #3
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Join Date: Aug 2002
Chapter/Region: NESIC
Location: San Francisco
2002 BMW M Coupe
Steel Gray


If you're just doing the shortblock with all the rest of the stock RS sensors and everything, you won't need to mess with the wiring harness.

I'd recommend a Greddy e-manage hands down over an S-AFC, although the S-AFC should work. Most places won't do a reflash for this kind of swap without having a custom dyno tune done. There are too many variables to account for to just send the ECU out and get it done.
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Old 02-11-2004, 08:26 PM   #4
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Member#: 10467
Join Date: Sep 2001
DOHC 2.0 Hybrid


Hmm. I will have to email I-speed and see what he says about the reflash.

Yea, the whole reason that I am just doing the shortblock is to stay away from the wiring harness.

I will look into the Greddy E-Manage over an AFC.
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