Recirculated Dual BPV/BOV where do I vent the BOV to question...

Sup3rL4m3r

Member
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Mazdaspeed Protege
Hey guys - just another Northern Californian, new to the forum and modding. Been researching the awesome threads for the last week or so, but no matter how many posts I read, diagrams I look at, I still have 1 question:

I want a recirculated dual BPV/BOV set-up. I have an Injen CAI with MAF in stock location, and stock BPV venting into the "L" nipple on the TB side of the CAI.

To recirculate my BOV do I need to have a nipple welded to the TB side of the CAI? If so - is there a distance recommendation from the stock BPV "L" nipple? Also - If I have this right about the nipple (that's wot she said, ha), would there be any reason not to use 1.25" OD to match the GReddy Recirc Adapter, or should I use 1" and make it work?

Here's a pic I made showing my understanding of the airflows and components. Is this pic okay - or did I mindfart on something?

MSP-Diagrams-recirc-bov.gif


Thanks Guys and thanks for a great forum!
 
yeah man it looks all right. i used to run this set up and IMO if you gonna be going through the trouble of doing all of this you might as well relocate the MAF. Thats what i did and its awsome.
 
KK - thx for the info. But I thought if running recirc dual BPV/BOV then moving the MAF becomes immaterial turkey-wise? Sounds like it worked out for you - If you have time lmk the details!

(rei)
 
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