can anyone tell me whaere this vac nipple goes or does it get capped.

Also on the front and back of the dinamic chmber there are three vac nipples. which ones get capped? I know that the ones in the front have something to do with omp.

That 1st vac nipple you can use for whatever you want, it's closest to the primary port, so it's the type of thing you'd use for a MAP sensor



You don't have a vacuum rack anymore so you can cap it, or use it for what you need. It used to goto the vac-rack.



**** it's been a long time since I've looked at stock 6port manifolds





I see you are premixing





Cap all three on the dynamic chamber, and please cap (or make sure you don't have any vacuum leak) at the cold start solenoid flange you have exposed on your upper intake runners.



Other than that, nice work mister.





Is that big hole in the 1st pic going into your primary fuel rail?

ok how many vac lines should I have when done this is the first time I do this.

That is a hole in the primary fuel line and no it will not stay that way.

Anyway, Thanks alot man.













That 1st vac nipple you can use for whatever you want, it's closest to the primary port, so it's the type of thing you'd use for a MAP sensor



You don't have a vacuum rack anymore so you can cap it, or use it for what you need. It used to goto the vac-rack.



**** it's been a long time since I've looked at stock 6port manifolds

I see you are premixing

Cap all three on the dynamic chamber, and please cap (or make sure you don't have any vacuum leak) at the cold start solenoid flange you have exposed on your upper intake runners.



Other than that, nice work mister.

Is that big hole in the 1st pic going into your primary fuel rail?


[/quote]

Well, you need a vacuum line for the FPR to somewhere that has consistant vacuum, so that 1st one in the pic would actually be a good canidate.



Other than that it depends what type of engine controller you are running. Are you using the stock EFI system or aftermarket?



My 6 port has hardly any vacuum lines, because I have an engine controller. I have one to the MAP, one to the FPR, and two to the distributor for the vacuum advance diaphragms (I'm not using the CAS like you have shown in your pic). Everything else is capped.



So what are you going to be using?

I will be using stock efi. the car itself is an s4.

I'm asking because I don't want to make any mistakes.

This is the first time I tackle a job this big.

The crazy thing is that I have no-one that will help me with project and I Don't know any mechanics that I trust with my car.





[quote name='ColinRX7' date='Jun 9 2005, 05:36 AM']Well, you need a vacuum line for the FPR to somewhere that has consistant vacuum, so that 1st one in the pic would actually be a good canidate.



Other than that it depends what type of engine controller you are running. Are you using the stock EFI system or aftermarket?



My 6 port has hardly any vacuum lines, because I have an engine controller. I have one to the MAP, one to the FPR, and two to the distributor for the vacuum advance diaphragms (I'm not using the CAS like you have shown in your pic). Everything else is capped.



So what are you going to be using?


[/quote]

Oh and thanks for your help. I mean that.

alex

You should end up with 3 vacuum lines. Look at the rats nest removal thread in the 2nd gen FAQ's if you need more help. Theres some good info there.

nice pics man, i want them not resized hehe? Email me =)

I made a mistake, that one nipple you were talking about is to help fuel atomization at lower rpms... Connect that to the dynamic chamber



Here's a QUOTE from the FAQ

Since you are premixing, those nipples for the oil metering injection are constant vacuum sources, so you can use those instead of routing to the back of the dynamic chamber, etc...





This setup will work for you



Incase you are unsure, the boost sensor is the little black box with a vacuum line mounted on the passenger side strut tower. There is a little "pill" inside that vacuum line for better vacuum response reading, so since you are a stock EFI guy, I don't know if it will affect your idling/throttle response (if you replace it with a pretty new vacuum line. Just keep that in mind.