Vac lines

[trogador2005]

Hey guys, I've done lots of research and I'm getting some mixed information and I just wanted to clarify that I have this correctly. my car is a 99 GST with a 16G.

This is the way that I think I'm supposed to run all my vac lines for my setup.

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Sorry for the roughness of the pic .

Any info would be great!

Thanks!

 

[2gmitsueclipse]

This is an OLD diagram from Taboo....This should help you out. This is how mine is plumbed. I can provide the race reduction version if needed.

 

[trogador2005]

I've seen that one before and my only question is that my BOV has 2 nipples so where does the second one go?
Also i read in other threads that the BOV is not supposed to have a T in it and it should go directly to the IM.

Thanks for the reply!

 

[19Eclipse90]

If you want to hook a hose up to the lower nipple on the BOV, it (like the big nipple) needs to be on its own pressure source. Do not T into another line. The boost controller should run wastegate --> BC --> boost source. See: http://www.dsmtuners.com/forums/newbie-forum/224445-greddy-type-s-bov-nipple-question.html.

 

[2gmitsueclipse]

How much boost are you running?

Less than 20psi: Can hook up the small nipple on Greddy (not necessary).
Over 20 psi: I would not hook up the small nipple

 

[trogador2005]

I'm running 18psi!

I took a look at that thread, does this look better?

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[19Eclipse90]

That'll do so long as the port you choose on the TB is before the throttle plate.

 

[trogador2005]

Ok great! how can I tell if it's before or after the plate?

 

[NSRT4]

top port to intake manifold, bottom port to intercooler pipe. thats how i have it hooked up on my srt and gsx.

 

[trogador2005]

Oh! So for the intercooler pipe do i have to weld in a nipple? Cause there isnt one on mine.

 

[NSRT4]

you can just drill a hole, get a threaded nipple fitting from autozone and thread it in. get some epoxy and put some around the fitting inside the pipe and outside.

 

[trogador2005]

Sweet thanks! this is the UICP right? should the nipple be on in IM side of the bov or in the IC side of it?

 

[NSRT4]

yes and intake mani side, doesnt matter but not too close to the TB.

 

[trogador2005]

Alright thanks for your help guys!

 

[19Eclipse90]

Ok great! how can I tell if it's before or after the plate?

Port A is before the throttle plate on '98 and '99 models.

 

[trogador2005]

thanks! which would be better, from the UICP or the TB?

 

[19Eclipse90]

Probably the UICP as it is closer to the boost source. Either will get you by though.

 

[trogador2005]

ok sweet! thanks again!