Hey guys, can anybody tell me the location for the vacuum hose on the stock BOV or air bypass valve, whatever mazda calls it. There are three metal vacuum hoses on the right side by the ACV and one behind them. So far these are my four possibilities. The engine in an '87 for my t2 swap (i got the parts seperatre, so please no "look before disconnect, idiot" comments !

If I'm off, please tell me. Thanks for the help!

 

you will need to zoom in on that pic... it connects right under the BAC valve.

 

there are 4 nipples on the ACV. you want the upper one sticking straight out towards the shock tower. the other 3 go to the vac rack

or there is another nipple right under the BAC on the upper intake.

either can be used for the BOV or boost sensor.


the one under the BAC isn't being used in this pic and you can't see it

 

The stock connection for the BOV is the nipple on the UIM under and just behind the BAC valve.

 

gotcha, thank you everyone for the help. I plan on using this for the BOV, boost sensor, and boost gage. Is that cool or am I 'overloading' that little nipple?

 

I'm doing that, but I doubt it's ideal. I plan to remove my ACV block-off plate, drill and tap a hole, and install a brass nipple for the MAP sensor. This will effectively put it back in the stock location.