im wondering where the vacuum line that is on the compressor housing goes to??? this is on a t3

 

this is a really basic question but normally it goes to the wastegate.

 

what if i do it to my bov???

 

run a vac line to the intake mani. like the vacume source that goes to the fuel pressure reg is a good place.

 

ok then were do i run the vacum line from the bov to?????

 

i ran my bov to a port on the tb

 

get one of these there pretty cheap and work great

 

ok so both the vacum lines from the bov and turbo go to that?

 

no i pull the signal for my wastegate from right in front of the throttle body. i use that for the boost gauge and BOV. you can just use the signal from the compressor for you wastegate as long as it's the right spring in it.

 

k

 

what if im just running the bov and no wastegate? then what

 

bump

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted_90_hatch &raquo;</TD></TR><TR><TD CLASS="quote">im wondering where the vacuum line that is on the compressor housing goes to??? this is on a t3</TD></TR></TABLE>

If Ive got the same thing in mind it goes to the wastegate. Ive got that line running to me external wastegate. Are internals the same?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted_90_hatch &raquo;</TD></TR><TR><TD CLASS="quote">what if im just running the bov and no wastegate? then what</TD></TR></TABLE>

You have to run a wastegate other wise you will free boost and boom!

 

Wow this is geting good.....

Plug the vac port on the turbo, pull out the barb fitting and just thread a bolt into it, now for your BOV and Wastegate...you can either get a vac manifold or go to lowes/home depot and get some 3 port fittings and put barb fittings on the ends, if you are running a catch can you can just use the vac line for the PCV valve since you won't need it (if you are running a catch can)

I can take a picture of my setup tonight and maybe you'll see what i am talking about...but for more acctuate wastegate and boost guage run them off the mani and not the turbo vac port it will accoidate for any pressure loss over the charge piping and IC

 

where did you get that golden eagle vaccuum port thing from??

 

My god, can't people use the search? And I don't mean just HT's search, going to google.com will find PLENTY of sources for an "Eagle Vacuum Manifold", along with turbo vacuum routing.


Here's how that style of vac mani is mounted/routed (top center of bay):


(yes its a 'clusterfuck' - its called having AC, OEM wire routes, transmission cables, tb cables, cruise cables, and oil lines)


<U>You will want to seal the port on the turbo compressor, don't use that.</U> You want to take a vacuum source *after* the throttle body and run it *BOTH* the blow-off valve AND the wastegate. If you run the lines in some other fasion, niether will work as intended. If you don't have the wastegate connected to a vacuum source after the TB, you will severly overboost. If that happens, you will either snap the overspun turbo shaft or just blow up your motor.

 

And never tap into your FPR, you get fuel press from there and you dont need that vac going any where but to the intake manifold

 

ok so if i plug the one on the compressor and then route the one from the bov to the tb im good?

 

bump

 

https://honda-tech.com/zerothread?id=1263795

here is what i did. when using the intake manifold for my wastegate i would lose 3psi in the upper rpms. so i drilled and taped the charge pipe 1/8 npt


you can see here, it goes to the boost controler


here is the line to the BOV off the vac manifold. for me this works really good.




Modified by abnaasefmb at 4:41 AM 8/16/2006

 

ok so im going to run my bov vaccum line to the fitting i put at teh lines up by the fire wall and im going to seee what happens

 

BOV goes to manifold. it uses the pressure diffeence between the pipe and the vacuum from the motor while the TB is shut to open the BOV. if you have a helper valve (lower barb on greddy TYPE S) it helps to hook it as close to the turbo as you can. as it will help open the BOV with slightlymore pressure.

 

that makes sense