Faeflora

iTrader: (2)

My Tial BOV flutters. I want to give it an awesome vacuum source so my plan is to drill a hole in my IM plenum (stock 01+) and put a barb on it. I found this wicked barb on http://www.anver.com:



It is a full ******* 3/4 inches. I was considering also boring out my Tial for an equally sized barb on the BOV "helmet".

Is this overkill?

Full_Tilt_Boogie

iTrader: (1)

Maybe your Tial flutters because they designed it to flutter because ricers like it when it flutters?

pschmidt

iTrader: (19)

If you're going to go to the trouble of tapping, use pushloc.





Stock vacuum nipple vs 1/4in pushloc

hustler

iTrader: (6)

Doubtful. If you want it to stay closed in vacuum, you're going to hear a little noise at low boost.

Faeflora

iTrader: (2)

Did that help your BOV open more quickly?

hustler

iTrader: (6)

http://www.poweraire.com/air-fitting...013b000217c6d2

fmowry

iTrader: (8)

Do you have the right spring in it? You shouldn't need 3/4 inch source for it to work properly.

pschmidt

iTrader: (19)

Marginally quicker. I tried everything to get the Tial to work. Three different springs, shimming, etc, but I finally threw in the towel and got a SSQ. No more flutter.

y8s

iTrader: (8)

wait'll he finds out that the force on the bov is not dependent on the area of the vacuum line.

hustler

iTrader: (6)

I switched to a larger diameter hose and it worked much better...but worked best with the correct spring.

Faeflora

iTrader: (2)

???? Well I want the MAP in the BOV to equal the MAP in the plenum as quickly as possible so why wouldn't a bigger vacuum line make the BOV open more quickly?



Did you go to the black spring, white, unpainted, or pink spring? I used to have the pink spring and it never ever pooshed. Went to the unpainted one now I think and it goes ch ch ch ch poosh. With my current spring the bov is opened just a tiny crack at idle.

fooger03

iTrader: (2)

A bigger hose won't change the time it takes the pressure wave to travel from IM to BOV, a shorter hose will. If you have a leak from the high pressure side to the low pressure side of the BOV which is exaggerated when the BOV is open (poor tolerance machining or intentional fluttering?), then air may leak from the high side to the low side when the BOV opens, which will increase the pressure of the low side of the BOV enough for the spring to momentarily shut the valve before the pressure falls again, and the valve reopens. Perhaps this is the reason behind your flutter?