Oh, I don't intend to keep any useful information secret I just wanted to ask Al a specific question.... I'm very interested in these developments. I want to do some mods to my car too but like Al, i want to avoid another debacle like the Unichip POS.

 

That unichip was a nightmare on the wrx ! Now they can't even give those suckers away! The Exed thing seems like it is head and shoulders better - it seems very promising indeed

 

I can't wait to get some good reviews.... I just hope that people report realistically without ignoring any downsides. I want to hear about the good and the rest..... Gotta add up all the factors before making a wise decision

 

Guess my ECU's "adaptive learning" is broken cause my Evo has been back on the dyno twice in the 800 miles since the XEDE was installed and still makes the same horsepower when the same mods are on it. Wonder if the broken adaptive learning thing can be fixed under warranty.....

 

Good to hear that! I'm interested in hearing how the XEDE is working over all. Have you experienced any minor (or otherwise) driveability issues? Some of the issues I've experienced in the past with other types of ECU/piggy back units are things like timing pull back, missfiring or stumbling or hard starting & rough idling.... I wonder if the guys with SAFCs, XEDEs or e-manage units are having any of these issues and if so, how are you dealing with them.

Thanks

 

If you're serious about this, I'm going to shoot you.

An ECU has two modes, Open Loop and Closed Loop.

In Closed loop, the ECU reads the input from the sensors, and continually adjusts fuel and timing to suit the conditions. This is the adaptive learning part of ECU. If a piggy-back computer tries to modify some values going in, then the computer will eventually adapt around them, and you will lose the power you gained from better tuning.

In Open Loop, the computer cannot keep up with the rate the variables are changing, and so it uses a fixed map. This one, the piggy-back can change, and you'll keep this power-level. The computer will never adapt to it.

So it's important that the piggy-back computer you use, is set correctly to recognise when the ECU is in open loop. I believe on the S-AFC, that this is the "hi throttle" and "lo throttle" settings.

 

Just kidding about the "adaptive learning" issue. But actually with the XEDE (with the Stage O/ 91 octane map) there have been no dirveability issues at all that I have ever been able to discern. Of course my car was individually dyno tuned.

 

Hey tuner are you planning to do some 1/4mi tests? If you are let me know what numbers it'll pull.

 

Shiv, how much do you charge for install/tuning? please e-mail me
ikulanet@hotmail.com
Thanks

 

Shiv, image is not very detailed so I have included a link to their site. use babelfish.altavista.com or similar translator.
http://www.field-net.co.jp/lineup/onetouch/op.html

 

Looks good. It should work just fine with the XEDE.

Shiv

 

Shiv,
What torque are you seeing on the stage 0 on 93 gas..?

 

am i reading that correctly? $1595??? whoa! kinda hefty, don't you think?

for that kind of cash a standalone system could be picked up.. especially since this seems to need dyno-tuning anyhow..

i think i'll wait and go with SAFC and MBC tuning until a DSM-link (or EVO-link) comes out..

awesome work tho!! truly impressive!.. but the price needs to drop about a grand to make any sense..

 

Just for clarification in case for some reason you aren't aware, that price includes a cat-back too. If you already knew that then ignore this post. I actually think the stage 0 is sounding pretty appealing and am interested to see what stage 1's gonna be all about.

 

nope.. didnt know that .. thanks for clearing that up.. makes more sense now!

still ... seems like a lot to me ... i guess i'm used to the 500 dollar 1.8T VW/Audi chiptuning market ..

in other words, now it's about 4-500 bux more than what i think chiptuning ought to be..