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Old 07-30-2003, 08:58 AM   #1
ScobaZak
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Default Aem Ems

Alright guys, I'm getting out of the turbo honda scene and I have an STi on order. Right now I have a hondata s200b with all the toys and options on it its comming off my boosted civic. its a stand alone system that works like a utec. Now heres my question a friend of mine that fabricats manifolds wants to trade me straight up for a new aem ems. I can have an adapter harness made for the EMS to fit the sabaru.

For tuning I have a awd dyno down the street and my own personal wideband o2 sensor and display. any suggestions on the aem ems and the sti's?
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Old 07-30-2003, 09:09 AM   #2
ha-evolution
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Never heard of one being used on a Subaru but a friend has an AEM running his 800hp Supra.
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Old 07-30-2003, 12:17 PM   #3
teiva-boy
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I would go for it. The DSM and supra crowd have been loving the AEM system for a while now. The WRX has gotten the sheit end of the stick. If you can do an even swap, and you can get the harness made for your STi. Go for it.


However, with the new throttle by wire setup in the STi, I wonder if it's compatible..... I'm sure you could find out by calling AEM
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Old 07-30-2003, 12:41 PM   #4
downshift1
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Default Re: Aem Ems

Quote:
Originally posted by ScobaZak
Alright guys, I'm getting out of the turbo honda scene and I have an STi on order. Right now I have a hondata s200b with all the toys and options on it its comming off my boosted civic. its a stand alone system that works like a utec. Now heres my question a friend of mine that fabricats manifolds wants to trade me straight up for a new aem ems. I can have an adapter harness made for the EMS to fit the sabaru.

For tuning I have a awd dyno down the street and my own personal wideband o2 sensor and display. any suggestions on the aem ems and the sti's?
The stand alone EMS won't work correctly with the STi because of three reasons TVGs, AVCS and throttle by wire (TBW). Although the EMS has a lot of outputs trying to get the set-up to work with the TBW set up would be almost impossible. I would just wait for the UTEC that's coming for the car and call it a day.

-Dylan
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Old 07-30-2003, 12:50 PM   #5
ScobaZak
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i posted the question in the AEM forums. should get some good results from that. I hope..
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Old 07-30-2003, 01:06 PM   #6
teiva-boy
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Quote:
The stand alone EMS won't work correctly with the STi because of three reasons TVGs, AVCS and throttle by wire (TBW).




The last one I understand. But the first one you dont need at all. The TGV's default to open when not powered. And AVCS, you can live without. Just add more b00st y0
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Old 07-30-2003, 01:13 PM   #7
stimpy
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The AVCS makes up for the lack of boost in the low end. Simply adding more boost does not accomplish anything where the AVCS would be noticed. At the point where the extra boost is coming into play, the AVSC is removing advance.

-Jon
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Old 07-30-2003, 01:27 PM   #8
teiva-boy
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Quote:
Originally posted by stimpy
The AVCS makes up for the lack of boost in the low end. Simply adding more boost does not accomplish anything where the AVCS would be noticed. At the point where the extra boost is coming into play, the AVSC is removing advance.

-Jon

Now granted no normal adult would say "add more b00st y0" It was a joke.


But AVCS is not a necessity and can be deleted altogether. In a race motor, you probably wouldn't want it. In a street motor I'm sure you would.

Last edited by teiva-boy; 07-30-2003 at 04:18 PM.
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Old 07-30-2003, 01:39 PM   #9
stimpy
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I understand the humor implied, but there are those out there that would think that to be truth. I just wanted to clarify that it wasn't that easy

-Jon
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Old 07-30-2003, 01:47 PM   #10
ScobaZak
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ok so its a conclusion that it wont work due to the throttle by wire
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Old 07-30-2003, 02:30 PM   #11
AWMIII
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Just change the throttle body for one with a cable.
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Old 07-30-2003, 02:43 PM   #12
stimpy
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You would have to wait for AEM to say that it wouldn't work. Until that point, it is all heresay. Theoretically, if you provided the enginemanagement, swapped out the accelerator pedal and throttle body for that of a WRX (non-STI) then you could do it. Untreaded waters though...

-Jon
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