For the Turbo guys

[HondaSi88]

I guess this could be a general question but what or where is the best place
to hook up the BOV and Boost gauge for vacuum?

[PhydeauX]

The intake manifold, after the throttle body.

andy

[HondaSi88]

i hooked it up today from the fuel pressure reg hose and it responds really well. Here is my next problem my charge pipes dont have any connections for a hose where do i "T" or connect the hose that goes from the TB into the intake or charge pipe?

[PhydeauX]

I'm not quite sure what you're asking. "The hose that goes from the TB into the intake or charge pipe" What do you mean by that?

andy

[HondaSi88]

lets say on a intake or a stock intake system.........you have 2 ports one for the valve cover breather and the other that comes from the front of the TB...i need to find the offical name for it let me go and look under my hood at the diagram.

[smufguy]

on a stock car, there is only one that comes from the valve cover. Its usually called the Valve cover breather and hooks up to the front of the TB on the intake pipe.

BOV: usually its on the charge pipe after the Intercooler and before the Throttle body.

Boost gauge: the hose reads boost/vacuum from the intake manifold. One of the vaccuum ports form the intake manifold is used to do this. u can either put a T in line with one of your vacuum hoses that come from the intake manifold.

[PhydeauX]

Well what ever it is if it was hooked up to the stock intake pipe like the breather was then you probably should hook it up to the intake pipe before the turbo.

andy

[HondaSi88]

see my charge pipe doesn't have any ports......i have my bov getting vacum from the fuel pressure reg hose.

[AccordEpicenter]

dont put ports on your charge pipe, the vac source MUST BE BEHIND THE THROTTLE BODY... intake manifold side

[Robs89LXi]

Phydeaux is correct: there is only one port off our intake tube, just before it attaches to the throttle body. The rubber hose comes off of it, attaches to a metal tube which is itself attached to the throttle body, then exits that tube and attaches to the valve cover via a second tube. It is all just one line though (see pics below).

If you have no port on your new intake tubing, no sweat. Just remove the rubber hose from your valve cover, and replace it with one of those small, round filters. Not sure if this is emissions legal or not, but maybe you don't have to worry about that?

[HondaSi88]

damn i guess the b series is different

[Robs89LXi]

damn i guess the b series is different

LOL. Okay, there is something you forgot to mention. I thought you were talking about a 3G (go figure!).

[HondaSi88]

naw sorry its a b17 here is a link to a general pic...........what is the offical name for it? Its circled in the pic
thanks for the help also

http://www.honda-tech.com/zerothread?id=1236154

[HondaSi88]

ok its called the dashpot valve

[smufguy]

From the below pic it looks like the Dashpot vacuum line goes BEFORE the Throttle body. TO be honest, if this dashpot does not do anything for emissions or anything, or help the car run, just pull it out.


http://files.automotiveforums.com/uploads/915285valvecover.JPG
http://files.automotiveforums.com/uploads/915285valvecover.JPG

http://plaza.ufl.edu/scmason1/coreyengine.JPG
http://plaza.ufl.edu/scmason1/coreyengine.JPG

[HondaSi88]

when i take the hose off the dashport the car seems to idle low and feels like its about to cut off.
so i "T" into a connection near the TB and the idle went to 3k and stayed there......

[PhydeauX]

Apparently this is what it does:

Originally Posted at G2IC Forums (http://www.g2ic.com/forums/showthread.php?t=63672)
the dashpot slows the closing of the throttle valve when you get off the gas, which smooths out the car's response in the low end substantially and keeps the RPMs at a good spot to catch the next gear when shifting.

the haynes manual everyone has is for a 93, unfortunately, but it shows a seemingly identical 2-diaphragm setup for the automatic teg, one of which apparently routes more air to the TB when you are starting your car. did acura put this setup on ALL of the 90-91s, then switch to the dashpot-only setup for the MT 92-93s?

What ever..

The intake pipe on a n/a motor is just a source for filtered air. Anything that is attached to it is just using it instead of a seperate air filter to keep crap out. You can either do as rob said and use a breather filter or you can route it to you intake pipe before the turbo. It problaby doesn't like being fed preasurized air from the turbo. I know there is no pressure at idle but I would assume it could be blown up if it got too much pressure (esp if you didn't have a working bov when it was hooked up post turbo). It maybe be dead and need to be replaced now. But what do I know, I don't have a turbo integra or anything equiped with a dashpot. Might want to ask some turbo integra owners.


Had a brain fart and remember why the term dashpot was so familiar...
My old carb was equiped with one. It was a diaphragm with a bleed orifice, there were no lines (vacuum or othorwise) hooked up to it. Its function was to slow the closing of the throttle similar to the function in that post from g2ic. I'm sure that would get pretty angry if it was pressurized. But again this is all speculation.

[A20A1]

On the carbed car the dashpot was direct to manifold vacuum but had a check valve to keep it from seeing pressure.

[Robs89LXi]

Yeah, I don't think I'd want to hook it to the intake if you are going to see positive pressure. Maybe you could rig up a check valve setup (?). You will need to investigate as to how exactly it operates, but if it operates off vacuum, you will need a good, fast acting BOV ahead of it to make sure that when you back off the throttle (in essence, going to negative pressure) that you do not have any positive pressure in the intake pipe. This is all just guessing on theory though; find out how it works first.

[HondaSi88]

thanks for everyone replies! i have a greddy type S for a BOv and its working fine.......i have a few hours tomorrow so i will play with a few things to see if
something works.

[HondaSi88]

i took it off all together and now the car idle's and run fine..........But NO BOOST!!! so tomorrow i am going to check all the hosses, BOV and wastegate
to see wassup

[AccordEpicenter]

you boostin the teg?

[HondaSi88]

yup............i figured everything out! Thanks for everyones suggestions.