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Old 01-01-2021, 04:37 PM   #1
jordanc15
Scooby Specialist
 
Member#: 276118
Join Date: Mar 2011
Chapter/Region: SCIC
Location: Los Angeles
Vehicle:
1969 VW BUG
Rust?

Default Anybody know 05 LGT injector scaling?

Does anybody know what the factory injector scale for a 2005 Legacy GT is? It has sidefeed yellow top injectors and I'm using Cobbs access tuner software.

Im running an EJ25 that I pulled out of an 05 Legacy GT to put in my VW bug. The wiring harness and ECU is form an 07 WRX so Cobb will only grant me access to their 07 WRX map through the access tuner software but I would imagine the top feeds that came in an 07 WRX have a different injector scale. Just don't want to chase my tail with tuning issues, or id like to at least make sure they are the same so I can write that off if I have any issues.

The stock 2007 WRX CCF map value is 4916

Any help appreciated!
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Old 01-22-2021, 02:32 PM   #2
ElroyDanabe
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Member#: 429521
Join Date: Sep 2015
Chapter/Region: NWIC
Location: WA
Default

HI -
factory scaling is 520 CC on the 05 LGT sidefeed, so the 07 wrx wont be too far off. Id try to start with a scaling of 4946.

INJ Latency are as follows :
6.00V 4.96 MS
9.00V 1.78
11.50V 1.01
14.00V .68
16.00V .54

If it were me, I would ditch the sidefeed and find a topfeed setup from a donor wrx or sti. TGV, rails, injectors, etc. More of preference thing and not really a must for you to do.

Now keep in mind, if you are using a different intake then the factory 05 LGT, your maf scaling may be off and some work to that table will need to happen.

You could have proper values for your injectors, but the maf scaling will throw fueling off, leading you to chase your tail on the INJ scaling and latency values.

Good luck on the swap.
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