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07-24-2006, 02:16 AM | #1 |
Scooby Newbie
Member#: 74547
Join Date: Nov 2004
Chapter/Region:
W. Canada
Location: Sherwood Park, Alberta
Vehicle:2005 WRX WR Blue |
STi Pinks injector scale
I am trying to scale my injectors for my car I have a 05 wrx with a VF34 and STi pinks, I am just wondering what number is everyone using for Sti pinks in the injector scale
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07-27-2006, 03:44 AM | #2 |
Scooby Newbie
Member#: 71184
Join Date: Sep 2004
Chapter/Region:
HIIC
Location: the 808 state aka hawaii
Vehicle:2002 ewg'd vf-34'd GDA AMS Tuned ! |
don't know if this is gonna help you at all , but my injectors are scaled @ 4820.of course this my not work @ all for your car.it takes awhile to get the scaling dailed in.just try to get the A/F correction & A/F learned as close to +/- 5% as possible.it doesn't have to be exact,just a close as possible.for example if your A/F correct. is -4% & your A/F learned is +3% it falls withnin the +/-5% range.also your gonna need to reset the ECU a few times to get the A/F learned back to 0.BTW do you have an intake on the car? if so put the stock air box back on.get the injectors scaled than you can tune for the intake.
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07-27-2006, 12:04 PM | #3 |
Scooby Newbie
Member#: 74547
Join Date: Nov 2004
Chapter/Region:
W. Canada
Location: Sherwood Park, Alberta
Vehicle:2005 WRX WR Blue |
I do have the stock intake. I did get the a/f within the +/- 5% but my a/f ratios were off from what i was aking for. Then i checked the A/F imediate and learned again and they were way off. Just seems like my a/f is closer with a larger scale number. I though that my number should be closer to what you have considering how much these are suopposed to flow.
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07-29-2006, 10:31 PM | #4 |
Scooby Newbie
Member#: 71184
Join Date: Sep 2004
Chapter/Region:
HIIC
Location: the 808 state aka hawaii
Vehicle:2002 ewg'd vf-34'd GDA AMS Tuned ! |
i almost forgot , but are you running a walboro 255?i'm currently running the 255.or i could just be that each batch of injectors flow different from each other.
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07-29-2006, 10:52 PM | #5 | |
Scooby Newbie
Member#: 74547
Join Date: Nov 2004
Chapter/Region:
W. Canada
Location: Sherwood Park, Alberta
Vehicle:2005 WRX WR Blue |
I do not have a fuel pump. still running the stock one. I just cant believe that they change that much fir the same injectors
Quote:
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07-30-2006, 12:44 AM | #6 | |
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Member#: 16200
Join Date: Mar 2002
Vehicle:OK buy Nates beans westcoastroasting.com |
Quote:
....try 4920 |
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07-30-2006, 09:57 AM | #7 |
Scooby Specialist
Member#: 50699
Join Date: Dec 2003
Chapter/Region:
TXIC
Location: austin
Vehicle:2004 WRX Platinum Silver |
also try and readjust your tip in values. Bigger injectors requires smaller numbers there too.
Here is a link to another discussion: http://www.wrxforum.com/cgi-bin/ulti...;f=15;t=000102 Here is the formula i gave in that thread: em injector value:W Tip in cell value: Y Hacked injector value: Z Z X Y ----- = approximate value W This is based on the theory that injector scaling and tip in numbers are based on lowering open time. Example Using crazymike's number on an 04 WRX: 4200 x 151 ----------- = 98.45 6442 6442 = oem value 4200 = crazy mike's value for correct idling 151 = oem number for top cell in tip in adjustment 98.45= new value for that cell. You might wanna add a little bit on top of this just to play it safe. But if the relationaship between open time for constant fuel and tip in the same this formula should get you pretty close to teh ball park. |
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