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Old 03-18-2003, 10:22 PM   #1
Scooby Specialist
Member#: 3928
Join Date: Feb 2001
Location: Boston, MA
2002 WRX sedan
WRB use to be MBP

Default utec stage 4 map and stage 4 tmi map the same?

i went to the turboxs site to download the stage 4 base map with no tmi but i noticed the file name was stage4tmi, so my question is are the two maps the same? i don't want to use the wrong map on accident and make something go boom
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Old 03-18-2003, 10:43 PM   #2
Scooby Newbie
Member#: 31649
Join Date: Jan 2003

yeah it appears the maps r the same.. i downloaded and printed em both,,,, the same
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Old 03-18-2003, 10:48 PM   #3
Scooby Specialist
Member#: 3928
Join Date: Feb 2001
Location: Boston, MA
2002 WRX sedan
WRB use to be MBP


hey man....thanx i really appreciated. sorry to have made you go through the trouble of printing them and comparing them. must have been an eye sore
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Old 03-18-2003, 11:12 PM   #4
Scooby Specialist
Member#: 22290
Join Date: Aug 2002
Chapter/Region: MAIC
2002 WRB WRX Wagon


I talked to the folks at TurboXS about it and Phil told me they are exactly the same because the base map is so rich, that with the extra boost (less pressure loss) from the TMIC, you're still running relatively rich. -Bolster
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Old 03-19-2003, 12:37 AM   #5
Scooby Newbie
Member#: 5094
Join Date: Mar 2001
Location: Gaithersburg, MD, usa
11.96, 1.64, 115mph!


A little clarification is needed.

The TMI has less pressure drop so the air charge is denser and therefore if you wanted to run the same AFR you would have to add more fuel. Since the TMI adds a significant amount of efficiency to the system we didn't want it run richer but instead leaner, thus the same voltage pull down in the fuel table.

While they are the same programs the result is very different. Not only is MAF voltage different because the car is breathing better but so is the AFR.

It just happened that the STG4 program gives the power we wanted to get out of adding the TMI. That doesn't mean there isn't significantly more to be had by further tuning

So don't call us as they are the same but different.

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