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Chris_N
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Post subject: Re: MAF scaling for Cobb SF?  Posted: Fri Feb 28, 2014 12:19 am |
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| Newbie |
Joined: Sat Dec 29, 2012 5:10 pm
Posts: 9
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How can the SF MAF scaling be this rich for some and OK for others?
I mean, MAF scaling seems pretty straight forward when the MAF sensor is good and and injector properties are known.
What about the OEM GR STI MAF scaling? I know I needed to tweak mine quite a bit even with the OEM hardware...
And what about the AEM CAI MAF scaling for the GR STI?
This is just for the sake of discussion and better understanding. There must be something I don't get.
Measuring proper MAF give proper engine load...
Thanks,
Christian
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foxbat
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Post subject: Re: MAF scaling for Cobb SF? Posted: Thu Nov 20, 2014 7:14 pm |
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| Experienced |
Joined: Fri Mar 12, 2010 2:19 pm
Posts: 202
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I wonder if the Cobb SF intake include a wider MAF housing, which would explain the richer MAF scaling figures? I just installed the SF intake on a 08 STi, stock rom & experienced a constant slight hesitation just before hitting positive boost. I tempted to try the scaling figures published earlier hoping it would fix the issue.
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throttlehappy
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Post subject: Re: MAF scaling for Cobb SF? Posted: Sat Nov 22, 2014 12:05 pm |
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| Senior Member |
Joined: Sat Feb 12, 2011 11:27 pm
Posts: 2032
Location: Northern NSW
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Not sure about you guys but that 30% increase in MAF scaling is optimistic considering the size differences
I was told the SF in the name stands for same flow.
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tmp_19204-2014-11-22 23.03.521056199499.jpg [ 252.54 KiB | Viewed 3494 times ]
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Shadow27
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Post subject: Re: MAF scaling for Cobb SF? Posted: Fri Dec 19, 2014 10:24 am |
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| Newbie |
Joined: Sun Oct 20, 2013 9:30 am
Posts: 7
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Here is one I scaled on a 2015 AUDM STI. Hope this helps.
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bluewrx12
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Post subject: Re: MAF scaling for Cobb SF? Posted: Thu Jun 11, 2015 7:11 pm |
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| Newbie |
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Joined: Sun Jun 07, 2015 1:07 am
Posts: 44
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If I install the SF intake do I need to adjust the MAF scaling? What other tables should I be looking to modify?
_________________
Current Car:
2012 Subaru WRX
Modifications:
-COBB Cold Air Intake with Box
-Stage 1 ECU Tune 93 Octane
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bludgod
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Post subject: Re: MAF scaling for Cobb SF? Posted: Thu Jun 11, 2015 7:54 pm |
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| Moderator |
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Joined: Sat Jul 06, 2013 12:55 pm
Posts: 3297
Location: NI
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bluewrx12
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Post subject: Re: MAF scaling for Cobb SF? Posted: Thu Jun 11, 2015 8:46 pm |
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| Newbie |
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Joined: Sun Jun 07, 2015 1:07 am
Posts: 44
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Thank you for the links! Very informative. Quick question: Is it safe to drive with a new intake while you tune MAF Scaling table for CL? What is best practice?
_________________
Current Car:
2012 Subaru WRX
Modifications:
-COBB Cold Air Intake with Box
-Stage 1 ECU Tune 93 Octane
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