ODUB

iTrader: (8)

is this the right way to have it installed?

ODUB

iTrader: (8)

or is this?

mrfred

iTrader: (50)

"Push" and "Pull" are both acceptable orientations. They will give different results with the push configuration likely to be more sensitive to pressure build up in the UICP during throttle lift. For reference, the stock Evo 9 DV is installed in "push" orientation.

ODUB

iTrader: (8)

i noticed that this valve is backwards compared to the stocker...i have it setup in the pull mode. is that the best mode for our cars or should i do it push?

and when you say push, you're talking air to open right? and pull is air to close?

mrfred

iTrader: (50)

The reason for this thread is to find out what works and what doesn't. Some people are running push and others running pull. I'm happy enough with push mode on Port B, but will likely tinker to see if I can make it better.

ODUB

iTrader: (8)

yeah I get that...i'm trying to figure out what direction I should point my tinkering. that's why I asked for pics because some people seem to have the push and pull configurations confused. I wanted to see exactly how people were running it. I'm going to try to run just one of the ports and see if that helps, and if not, I'll switch it around. I thought I remember reading somewhere though that push was the way to go and pull was just wrong.

Aby@MIL.SPEC

iTrader: (161)

push or pull is in reference to how the surplus air is passing by the bov valve.

in push mode = the valve is being pushed to open.

in pull mode = the valve is being pulled to open.

ODUB

iTrader: (8)

yes, I understand that. it seems that other people didn't get that, and that's why I asked for pictures lol I'm going to go and play with mine now and see what I can come up with.

EVOheaven

iTrader: (3)

Is my DV setup push or pull? I have an Evo X.

Aby@MIL.SPEC

iTrader: (161)

Here are some pics:

v If the air coming out of your uicp see's this, your in push mode


^ If the air coming out of your uicp see's this, your in pull mode

Here is what i refer to as either A port or B port. A-port is closest to the adjusting screw. As you see, there is a slight difference.

evodood

iTrader: (1)

This statement makes me think that YOU are confused. The valve works BOTH ways so there is NO "wrong".

There is only what works best for you.


AGAIN - let me reiterate there is no "wrong".

This is likely the only BOV that cannot be installed "WRONG" as it will work anyway you hook it up. The only difference in configuration is how well it works and that is up to the owner to decide.

ODUB

iTrader: (8)

I understand that there's no wrong, and i think i just used the wrong wording. I remember reading a thread though, and for our cars the consensus of everyone in the thread was that push was the BETTER setting. didn't mean to say that pull was wrong, but not as good for this particular application.

I know the difference between push and pull. what I meant was that through reading there were guys calling the air to close "push" because the boost was pushing it closed, but then others were calling air to open "push" because the boosting was pushing it open. I just wanted pics to see who was calling what, what.

I see it as everyone in THIS thread has said it so far. Push is air to open, Pull is air to close.


Okay, just swapped mine around to PUSH mode, both A and B ports and it may have solved the part throttle lift flutter issue. valve response is a bit better as well. Thanks for all of the pictures, and discussion.

edit: spoke too soon. took a trip from baton rouge to NOLA to watch the hornets game, and I had a lot of fluttering, but not as bad. I'm going to play with the ports and see what I can come up with.

Detailguy

Does anyone else get a tinging noise (almost like a very small vta sound) when letting off just before the vacuum goes to zero and before building boost? I have mine currently in Push mode with A and B t'ed into the IM. I'm also getting a A LOT of flutter on partial boost and sometimes in full boost.

evodood

iTrader: (1)

You're on the right track, try B port only

There are already lots of suggestions in this thread and others, about what you can try to make this better.

LV///R

iTrader: (36)

All what I have to say is after I installed a spoolin' up COP, my fluttering in 4th/5th gear at low rpms (holding the pedal partial throttle, getting into boost) went away with my Synapse. Absolutely, completely GONE!