JCurry

iTrader: (6)

Where did you guys put your vac line off your pressure sensor after you removed your ACV?Can I just put in on one of those three metal vac lines that you cap off after emissions removal right beside the ACV?


Thanx

NZConvertible

The easiest way to do it is tee into the BOV valve line. The best way to do it (IMO) is to put a brass vac nipple in the AVC block-off plate in the same location it was on the ACV.



Make sure you keep the restrictor pill in the MAP sensor line, and put it downstream of the tee if you use one.

JCurry

iTrader: (6)

Ok so if i tee into the bov vac line for the pressure sensor can i Still have my boost gauge Teed into the bov vac line too?

NZConvertible

That's how I had mine for a while and it worked fine, but I didn't like having more than one tee in the line. That's why I added the nipple to the block-off plate.

boost_its_what_for_dinner

can the resrictor pill mess up drivability and make it cut out under loads and boost

NZConvertible

The lack of restrictor pill can do that.

JCurry

iTrader: (6)

Hey Nz do the brass fitting have to be in the same spot as the one on the ACV?

NZConvertible

Yes, it has to line up with the small hole in the manifold that goes through into the intake runner.

JCurry

iTrader: (6)

Did you tap out the manifold and put the fitting right into that? If so wat size did you use?

NZConvertible

I didn't touch the manifold, only the block-off plate. I bought a brass nipple (hose barb on one end, 3/8" thread on the other) that was the right side for the vac line. I drilled and tapped a hole in the plate, screwed it in, then cut off the threaded bit sticking out the back of the plate and ground it smooth.

JCurry

iTrader: (6)

how thick is your block off plate, dosent seem like there is much to tap into, i was just gonna drill and tap the plate and the manifold, do you think it would hurt anything?

NZConvertible

My plate is 2.6mm (~0.100") thick, which is about the thinnest you should make a block-off plate. The 3/8" NPT thread has a pretty fine pitch, so it worked fine. It's been there over a year and doesn't leak. Drilling and tapping the manifold would just be an unnecessary PITA. I wouldn't want to do it with the manifold on the engine anyway.