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Old Jul 6, 2013, 05:04 PM
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Sd blend tuning?
What is the purpose of sd blend tuning? I started to look into that for some Subaru stuff and kinda wonder why and how it's used and is there a practical application ie jitter fix that we can use this for?
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Old Jul 9, 2013, 08:52 AM
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Originally Posted by 211ratsbud
What is the purpose of sd blend tuning? I started to look into that for some Subaru stuff and kinda wonder why and how it's used and is there a practical application ie jitter fix that we can use this for?
sounds like something specific to subie fuel programming, and the name doesn't conjur up any notions of what it does.
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Old Jul 9, 2013, 05:09 PM
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Particularly uses a maf in some instances and a sd calculation in others. Which and when I don't decipher but is configurable to some extent

I have read it on Evo forums but not for stock ecu. They discuss it for Motorsport use.

I think off boost = sd
And on boost = maf

Not totally sure, if its anything like typical Subaru stuff there's timers, flags, timers, tables abcd, lol so on
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Old Jul 9, 2013, 05:52 PM
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Originally Posted by 211ratsbud
Particularly uses a maf in some instances and a sd calculation in others. Which and when I don't decipher but is configurable to some extent

I have read it on Evo forums but not for stock ecu. They discuss it for Motorsport use.

I think off boost = sd
And on boost = maf

Not totally sure, if its anything like typical Subaru stuff there's timers, flags, timers, tables abcd, lol so on
Evo 10 code has something similar... its a mess... no fun to try to decipher. I love the relative simplicity of the Evo 8/9 code.
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Old Jul 10, 2013, 12:16 PM
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I have tuned Suby SD. Yes, their SD roms allow full SD, blend SD & MAF or full MAF. I just used full SD and it worked great. I love how their SD ROM have an actual 3d VE table.

I personally dont see any reason to run in "Blend" mode.
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