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need help installing greddy type s BOV

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jgrab

Probationary Member
11
0
Jun 25, 2008
westreading, Pennsylvania
whats up guys i just bought the punishment racing fmic kit and they gave me a type s bov with it and i cant seem to figure out how to hook it up.....the new j-pipe they gave me dosent have the nipple like the stock one...so i have the intake mani hose going into the big nipple and the i cut that hose in half and t-spliced it with the hose coming from the boost controler which i have hooked up to the wastgate.....it isnt blowing off and i keep getting compressor surge or what ever it is called when it is blowing out the intake please help so i can boost.............
 
i know there is somebody out there that knows who to set up a greddy type s bov come one guys give a little help here
 
Some pictures would be helpful. It is hard to understand what you did. As far as the nipple on the j-pipe, you can make a T in the hose that goes from the intake manifold to the bov.
 
fist of all the way your running your set up is incorrect...the hose that comes from the many to the bov originally should ONLY go to the bov...as for the boost source for your boost controller you need to tap the j pipe with a new fitting and use that for the boost controller.

because what you are doing is not letting either part get the accurate reading it needs.

:talon:
 
ok so what you are saying is the hose from the mani that i have t'ed off needs to just be on straight hose and not spliced into with the boost controller....is there a way that i can put my own nipple on the j-pipe myself....like drill a hole and get some type of small male fitting to put in it.....?
 
You could run the mbc off the t in the bov hose but it is best recommended to run it off from the j-pipe to the wg. Just drill in a hole in the j-pipe and weld in a small nipple. Problem solved.
 
^^^ That's what I did. Get a brass nipple at the hardware store and JB Weld it in place.

As for the setup, teeing the bov line for the boost controller is not the ideal thing, but I ran like that for a couple of years with no problems. Setting up a boost only source for the boost controller is definitely better if you can do it.

Here's a step by step with photos on how to install the Type S. The quote below is from that page.

The small hose you removed from the stock BOV must be connected to the larger nipple on the anodized cap (closest to the adjustment screw.)

(Note: This connects to the intake after the throttle butterfly and will pull vacuum when the throttle is closed)

The smaller nipple on the cast aluminum body of the BOV may be spliced into the turbo outlet pipe or into the line between the turbo and wastgate actuator. Use the T-connector supplied. This connects to pressure even when the other line has vacuum. This will activate the BOV faster by applying pressure under the valve seat.
 
but see i hear everyone telling me it is ok to do that but it isnt blowing off at all not even the littlest bit it is all just going straight out the intake
 
Just hook it all up exactly how everyone's saying.

BOV to the Intake Mani
Boost source on controller to J-Pipe
Other BC nipple to wastegate

It's technically "OK" to do it that way, but think about it...where is the BC going to get the most accurate and "Up to date" boost reading? The intake mani WAYYYY at the wrong end of the piping? Or the J-Pipe right AT the turbo?

Hook it up the way we're suggesting and see if that solves your problems. If it doesn't...you got yourself a FUBARed BOV.
 
ok thanks for the help guys i appreciate i will get back to you guys on how it turnds out
 
make sure to adjust the BOV accordingly also... having it too tight will cause you to have compressor surge. you need it to open depending on how much boost you're running etc. again pictures are helpful along with a little more info. follow the steps in the above posts and double check your BOV and you should be fine! :thumb:
 
ok will do and will try and get some pictures up if i cant figure it out so maybe you guys can give me a hand
 
I think this is how you are supposed to hook it up but not 100%:

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Try checking your adjustment screw as well.
 
i run the top nipple on the bov directly from a porn on the IM, actually the original one that connected to stock bov. i also dont like to T anything off of that, nor the boost source which that weird diagram above has it. I guess some people do it this way?

if it has no boost source on the compressor housing/jpipe/lower ic pipe, drill one in.
 
I think this is how you are supposed to hook it up but not 100%:

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Try checking your adjustment screw as well.

Just FYI...you don't HAVE to hook up the smaller nipple. All it is, is an assist to help push up the valve plate. So it won't hurt you to NOT hook it up.
 
The smaller nipple is the "quick release" feature. It's not necessary unless you're having trouble with the valve fluttering at low boost.

Hooking up the quick release would not yeild as much total boost held, so if you're running 20+ psi it would be a good idea to leave the quick release unhooked.

If you choose to hook it up, the illustration above shows exactly how it should be done....except the MBC is installed backwards in that photo.
 
Oops, yeah the mbc is backwards (made the diagram right before bed). Just trying to give the op a visual if he/she wanted to hook up both nipples.
 
Hey guys, I was wondering why you would hook up the mbc at the j-pipe and not before the throttle body? I would imagine that by hooking up the mbc at the j-pipe it would not account for the intercooler's pressure drop? Just curious...
 
Hey guys, I was wondering why you would hook up the mbc at the j-pipe and not before the throttle body? I would imagine that by hooking up the mbc at the j-pipe it would not account for the intercooler's pressure drop? Just curious...

Since most MBCs and a lot of EBCs do not use number reference on the device and the readout is referenced from the boost gauge, regardless of where the MBC gets boost from pressure drop can be corrected by just turning up the MBC/EBC.
 
Can you also tap the intake pipe prior to the compressor wheel to supply a boost source to the BOV?
 
LOL and to bring a dead thread back from the grave +1
 
But is there enough pressure to activate the BOV? You shouldn't need much pressure to activate the plunger.
 
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