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01-15-2008, 07:16 PM | #1 |
Scooby Newbie
Member#: 166159
Join Date: Dec 2007
Chapter/Region:
MWSOC
Location: Forest Lake, MN
Vehicle:2002 Wrx wagon black |
Rescaling MAF question
I have read all about the intakes and how they change how the senser senses the air flow. The WRX I have came with a Short ram inake, I do not know who makes it. I have done logging and from what I can tell, there does not seem to be any turbulance bothering the senser. I am wondering what is the stock intake diameter where the senser is, and what kind of air flow change there is for different diameters... IE, the math for rescaling the MAF?
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01-16-2008, 01:15 AM | #2 |
Scooby Specialist
Member#: 123347
Join Date: Aug 2006
Chapter/Region:
NWIC
Location: SEATTLE
Vehicle:1993 POS burgandy legacy |
65 mm is the stock maf tube diameter
there's was a really good thread about this subject but I cant find it now nasioc member "jays05" authored it I used it to start when I tuned my perrin bigmaf the threads gone or the search engine is broke here's another one I had found thats great as well http://forums.nasioc.com/forums/showthread.php?t=608153 Last edited by a6n6d6y; 01-16-2008 at 01:35 AM. |
01-16-2008, 01:56 AM | #3 |
Scooby Guru
Member#: 71092
Join Date: Sep 2004
Chapter/Region:
MWSOC
Location: Licking County, Ohio
Vehicle:2005 2.5RS Wagon Regal Blue Pearl |
Here's the HOWTO I just wrote about MAF Scaling: http://forums.nasioc.com/forums/show....php?t=1427448
First thing to do is to see if you even need to bother. Do the logging and the analysis/graphing. If your numbers come out close to 0, leave it alone. |
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