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Old 06-19-2012, 08:19 PM   #41
Equilibrium Tuning
Former Vendor
Member#: 26933
Join Date: Oct 2002
Chapter/Region: BAIC
Location: Fairfield, CA
2006 STI


Originally Posted by stretchedk7 View Post
Draw thru is fine but need maf in fender and in good maf housing. Mine idled great with the ks tech 83mm maf housing and in fender.

Went aem and speed density now but back then cobb and draw thru was solid.
It doesn't work so well with an atmospheric BOV as in this car. This is especially the case with very large injectors as they are more sensitive to inaccurate air flow metering and fueling.

I see this issue a lot with Tial BOV's and most people end up running too stiff of a spring in them to keep the BOV closed at idle. This of course results in excessive compressor surge. A properly set up Tial BOV will usually be slightly open at idle... which of course will not work at all with a draw-through MAF.

-- Ed
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