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Old 01-07-2005, 03:33 PM   #1
b0dh1
Scooby Specialist
 
Member#: 35269
Join Date: Apr 2003
Chapter/Region: Tri-State
Location: Morrisville, PA
Vehicle:
2011 WRX

Default TMIC vs. FMIC with UTEC

I figured this subject would've been beaten to death but my searches came up pretty empty. I have a TMIC on my car now and my TXS FMIC should be here tomorrow. Should I completely get the car re-tuned or are the changes easy enough for me to make? I don't have a WB02 however.
2003 WRX mods:
Vf23
modded injectors
TXS UTEC
TXS shorty
TXS FMIC(TMIC until tomorrow)
Catless uppipe
Invidia d/p
Carbon/Ti catback
Perrin inlet hose
BKR7E plugs
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Old 01-07-2005, 06:40 PM   #2
serendipity
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Member#: 54597
Join Date: Feb 2004
Chapter/Region: MAIC
Location: Gaithersburg, MD
Vehicle:
08 'Busa, 08 ML63
10 Multistrada, 996 Targa

Default

I don't know if my experience was "normal" but my tune (fuel-wise, anyway) was TOTALLY borked after putting an FMIC on.

It wasn't dangerous really, just exceptionally rich in the low-load areas (from 12.5ish to 10.5ish). There were some spots around 70% and certain low RPM that were lean, but I *think* that was caused by other changes I'd been making in my maps but hadn't noticed until after the FMIC install.
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Old 01-07-2005, 07:27 PM   #3
jlee8196
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Member#: 22211
Join Date: Jul 2002
Default

I have a stock IC before I switch to Turboxs FMIC. My original map was rich everywhere. If you looked at the stage4TMIC map v.s. the stage4FMIC map on turboxs you'll see that fuel is less on the FMIC map almost everywhere. The timing is the same.
So only fuel map needs to be tune. The only safe way to tune fuel..... yep wideband. So re-tune in your case, you should think about getting a tuna or other WBo2's with all your setups.
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Old 01-07-2005, 07:40 PM   #4
b0dh1
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Member#: 35269
Join Date: Apr 2003
Chapter/Region: Tri-State
Location: Morrisville, PA
Vehicle:
2011 WRX

Default

Thanks for the replies. I'd love to get a tuna but after this FMIC project it's time to pay the bills. Down the road is possibly a bigger turbo and one last tune
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