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Old 08-24-2005, 01:44 PM   #76
Storm
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I'm pretty sure he means the unit itself...not the program that's on the Unichip flashed for a stage 0 WRX tune.
Quote:
Originally Posted by Rallitek.com
WRX UniChip will only work for a 2005 RS. Older models can not use UniChip from WRX.

-Sean S.
www.RaliTEK.com
Can you confirm what you're saying here?

Jay Storm
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Old 08-24-2005, 02:38 PM   #77
Rallitek.com
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Location: Portland , Oregon
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08 WRX
Lightning Red

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Jay,

You are correct. The unit itself can not understand the ignition for the 2.5RS. WRX uses a different igntion system. I have UniChips for RS....

-Sean S.
www.RalliTEK.com
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Old 08-24-2005, 08:51 PM   #78
Storm
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What exactly is different? The hardware or software?

Jay Storm
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Old 08-24-2005, 09:11 PM   #79
Rallitek.com
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Lightning Red

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The hardware is different. WRX uses a 'C' or 'D' module, RS uses an 'A' module. The 'A' module can only understand the ignition on '96 and newer n/a Subaru, not alter it. So it is a fuel controller only.

-Sean S.
www.RalliTEK.com
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Old 01-01-2006, 02:55 AM   #80
Patrick Olsen
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1997 Legacy 2.5GT
QuickSilver Metallic

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So, bringing this one back from the dead yet again. I haven't really done anything yet, although I did finally get my WBO2 sensor hooked up. Thus far I've only done the wideband itself - I also have the AuxBox from Innovate that allows one to datalog 5 parameters, but I haven't wired that in yet. Even just watching the WBO2 readout it's pretty clear the car runs a bit lean when I get on the gas at low RPMs - say, under 3500rpm or so. I've already found that the S-AFC is nice, but it just can't do what I really need to be able to do. Having the 3D maps (fuel adjustment as a function of both load and RPM) would be much better than the S-AFC's adjustment (which is kind of 3D, but really you have the HI settings, the LO settings, and then just some average in between that probably isn't what you want/need it to be).

Looking into the not-too-distant future, I'm pretty sure I'm going to either rebuild my current motor or build a new one. If I were to build a SOHC motor, then I could use a '99+ ECU and get it reflashed by iSpeed and/or Japan Auto (Yoshio). If I stick with the DOHC engine (and hence don't throw away the $$$ I've already spent on the Cobb heads and cams I've got) then I think the Greddy Emanage and Perfect Power will both work for me, but that's (1) a lot more install work for me, and (2) there still doesn't seem to be a real big knowledge base in the N/A Subie community with either.

Decisions, decisions, decisions...

Pat Olsen
'97 Legacy 2.5GT sedan
154k hard miles, and starting to feel it...
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Old 01-01-2006, 03:29 AM   #81
Rallitek.com
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Join Date: Apr 2003
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Location: Portland , Oregon
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Lightning Red

Default RalliTEK PRS4 StandAlone ECU

Our RalliTEk PP6 will suit all your needs for your current setup. I already have maps for you, as well as you can data log, build your own maps, and run accessories like NOS, shift light, or.... One more choice in the mix.. RalliTEK PRS4 StandAlone ECU is yet another option... We will have it as a full PNP (as well as the PP6) for all Impreza models by 2nd qtr '06 and it is available now as a 'wire-in'.

at bit of info:

http://rallitekforums.com/forums/forumdisplay.php?f=63
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Old 01-01-2006, 06:07 PM   #82
Storm
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^^^ Does it allow control over the RPM limit and is it compatible with pre 99 ECUs?

Jay Storm
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Old 01-01-2006, 10:55 PM   #83
Warp3
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89 MR2 (Ice Blue)

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Quote:
Originally Posted by Patrick Olsen
(2) there still doesn't seem to be a real big knowledge base in the N/A Subie community with either.
Tell me about it. I've got a Hydra on my N/A 99RS and that appears to put me in a *very* small group (there are other Hydra-powered 2.5RSs but most of those are turbo'd or swapped cars). {sigh}

Shane
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