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Old 01-26-2005, 07:49 PM   #1
jdchmiel
Scooby Newbie
 
Member#: 926
Join Date: Feb 2000
Chapter/Region: South East
Location: Raleigh, NC, USA
Default oem ecu load scale conversion

http://www.ecutek.com/tuning/oemcompare/

halfway down the page there is a chart of fuel and of ignition values for the stock ecu basemap. Across the top in teh 16 load points the value goes from 3 to 42 "units" :

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
3 5 8 10 12 15 18 21 24 27 30 33 36 38 40 42

600 12 12 12 16 18 16 11 7 3 0 0 0 0 0 0 0 0
800 16 12 12 16 20 20 14 9 6 4 0 0 0 0 0 0 0
1200 24 16 16 20 24 28 25 20 15 11 7 7 7 7 7 7 7
1600 32 20 20 24 28 32 30 26 20 16 14 12 12 12 12 12 12
2000 40 32 32 38 38 38 36 32 26 20 15 12 12 12 12 12 12
2400 48 42 42 42 42 42 42 36 31 26 21 17 14 12 12 12 12
2800 56 42 42 42 42 42 42 36 32 25 21 18 15 12 12 12 12
3200 64 42 42 42 42 42 42 40 36 31 25 23 19 15 14 13 13
3600 72 42 42 42 42 42 42 42 40 34 28 24 20 15 14 13 13
4000 80 42 42 42 42 42 41 38 35 31 27 25 22 18 16 14 13
4400 88 42 42 42 42 42 41 38 35 31 27 25 23 19 17 15 15
4800 96 44 44 44 44 42 41 38 33 28 24 21 19 16 14 13 13
5200 104 46 46 46 46 44 44 41 36 29 27 25 24 22 20 19 19
5600 112 46 46 46 46 46 46 42 37 34 31 28 25 22 21 20 20
6000 120 46 46 46 46 46 46 44 40 36 32 29 26 24 23 21 21
6400 128 46 46 46 46 46 46 44 42 38 34 31 28 25 23 21 21
dunno if that will show up or not. Any ide what those units are??

Also out of curiousity, what is the redline on the wrx? I was curious that the map only goes up to 6400 rpm ??

And a final thought.. I cant seem to find this info for a 2.5 NA ecu at all. I found this for the STI at
http://www.ecutek.com/products/deltaecu/ign2004.png
and the scale goes up to 2.75 which I am thinking is atmopheres?? any body?
I am debating which map to use to generate a "base" correction map for a 2.5 sohc head ej257 shortblock motor with 2.5 NA ecu and emanage.. Emanage can add and subtract timing, so I want to compare load values and get teh difference to create this correction map for larger fuel injectors... I dont think I am making too much sense, I will have to do a write up, and show byt example with the final results.
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Last edited by jdchmiel; 01-26-2005 at 07:55 PM.
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Old 01-31-2005, 07:10 PM   #2
jdchmiel
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Member#: 926
Join Date: Feb 2000
Chapter/Region: South East
Location: Raleigh, NC, USA
Default

bump - after a brain fart i thought both teh STI and the WRX have MAF sensors.. is this MAF voltage?
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