so i got a greddy bov, a tial wastegate, a precision turbo, turbo xs mbc, and a boost guage. how would i hook all these up to a blox vacuum manifold. would i have to t off where the wastegate connects to the boost controller and run it to the vacuum manifold?

 

never t off any thing that connects to the wastgate the wg should always have its own vacuum source

if you look though the FAQ they have some good step by step instructions fo running/installing bov vacuum lines ect

ive set mine up by whats posted here in the faq and my local tuner was surprised...

 

1) Run a vac line from bottom of wastegate to silver port on MBC and then another vac line from compressor housing on turbo to other port on MBC. This is done, don't change it.
2) Put the blox vacuum manifold in line with the brake booster using T provided. Run BOV, Boost gauge from it and block all other unused ports off.

 

Thanks guys for the info. One more question...do I leave the bottom port on the bov open?

 

yes

 

What type of Greddy BOV is it? There shouldn't be more than one vacuum port on it. The thing on top should be only an adjustment screw.

 

It's a greddY rs bov. And it has two nipples on the backside of it one higher the other lower.

 

Can you post a pic of it. I have a RS too and it only has one. I even just googled images and they all have one too.

EDIT: Seems you have a Greddy S. As posted above dont use the smaller/bottom nipple.

 

are you sure you don't have the type s?

 

I'll post pics up in a bit.

 

It is the greddy type s bov. So would I just leave the bottom nipple open?

 

Yes

 

Ok thanks alot!

 

the bottom nipple is suppost to be t between the wg and boost controller most people leave them open