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Old 03-28-2006, 08:41 PM   #1
AXA
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Join Date: Apr 2003
Location: Miami Fl.
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2002 STI WRX GT30R
WRC Blue

Default Help me decide on wich EM to get. ( Hydra, AEM, Power FC, Autronic)

I know this has been cover before …. And I also know a Engine management system is as good as the tuner is..
Here is my deal:
Were I live we don’t have a 4WD dyno so all the tuning has to be done on the street.
The closes tuner I got for the Hydra is Gadiel en Puerto Rico but he is not welling to come to Dominican Republic because he is not willing to tune on the street.
The AEM is the next choice and the tuner I can get is in New Jersey, but I been reading that the AEM box for the WRX has some ground problem that affects the timing in the car if the box touches any ground on the car. (Ect., Ect.)
Power FC is as simple to tune as the UTEC and only uses the map no maf at all…. But it has fewer option than the UTEC.
The Autronic for my teste is a good choice but is hard to install because of the harness like the haltech, electromotive and all other racing computers.

Choices, choices ….


If some has a opinion please let me know….. In what to get or how hard was the change form UTEC to a complete Engine management system…



Jose
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Old 03-28-2006, 09:14 PM   #2
offset
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Well, if you think you are capable of doing a little bit of self-tuning I say try the Hydra. It has some of the best support available (for Subies). With the Autotune function and Phil and some others on these boards you can dial in a pretty good tune. Besides that, real final tuning should be done on the road anyway; dynos are for getting it close and showing power levels.

offset
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Old 03-29-2006, 11:24 AM   #3
Jaxx
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is your car a usdm or does it have avcs?
why not get the plug n play version of the autronic?
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Old 03-29-2006, 12:25 PM   #4
AXA
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Quote:
Originally Posted by Jaxx
is your car a usdm or does it have avcs?
why not get the plug n play version of the autronic?

My car is a EURO spec no AVCS..... Motor number EJ205NW4BB…
But my motor is a combination of built STI type C long block with the WRX intake manifold and all supporting sensors of the original motor....
The UTEC works great but I am tire of the maf and the stock map sensor not been able to controlled more than 24 PSI of boost reliable..
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Old 03-29-2006, 04:36 PM   #5
bboy
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Of those choices it would be the Hydra from Element Tuning. Phil's base maps are excellent. You won't have that with any of those other systems. Autotune will help you get your fueling right and you'll have a pretty well tuned car.
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Old 03-29-2006, 05:23 PM   #6
Gadiel
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Buy an AEM from my experience is the fastest to tune when you know how to use the software.

Gadiel
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Old 03-30-2006, 11:18 PM   #7
WRX-Blue-Mica
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Quote:
Originally Posted by Gadiel
Buy an AEM from my experience is the fastest to tune when you know how to use the software.

Gadiel
AEM is very interesting EM .. but is it true the AEM knock control is slow to react?

Thanks a lot
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Old 04-01-2006, 03:38 AM   #8
PHATsuby
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to stock is a project too

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i have yet to really look at my Hydra interface but the Autronic interface is nice and the Autronic SM4 is a very nice ecu, just ask if they have AVCS control for your engine, they may if it is euro, if that is the case then you should have a plug and play option and can use the auto tune and such, if you need to wire it its really not a big deal.

Hydra is second but thats just because from initial look over it seems a bit more confusing, but like any EM once you get the system down its easy.
Ben
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