996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

Anyone use a vacuum/boost block?

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Old Nov 6, 2015 | 11:13 AM
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Anyone use a vacuum/boost block?

Like this:


The reason I ask is because I feel (well I actually know) I'm getting real weak signal from the TINY nipple ports off the plenum to my BOVs which I then have to T to split to each one.

I can actually hear residual air pressure being released from the turbo compressor housing and out of the air filters (fender intakes) after I let out of the throttle and after the initial BOV release (at higher boost pressures). I imagine this could affect boost response/control, FPR response, etc. So I'm thinking about picking up something like this and placing a big brass T off the big port on top of the plenum housing. IMO placing the BOVs POST IC is not the most optimal way to go due to the pressure difference before/after the IC, but as many of you know there's not much room to place the BOV between the turbo and IC path...I know, because I tried. That's why I feel like I need a better reference signal to the BOVs and maybe a biga$$ vacuum/boost block may help. Just curious if anyone else has one, how they mounted it, what signal off the plenum they are using, etc. Thanks!!!
 

Last edited by 03EvoIII; Nov 6, 2015 at 11:17 AM.
Old Nov 6, 2015 | 07:54 PM
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Anyone use a vacuum/boost block?

Interested
 

Last edited by timccloud; Nov 6, 2015 at 07:56 PM.
Old Nov 6, 2015 | 09:20 PM
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Im running one on my car and my brothers. great way to cut down on vacuum lines and address leaks.
 
Old Nov 7, 2015 | 02:49 AM
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Originally Posted by Swole Powell
Im running one on my car and my brothers. great way to cut down on vacuum lines and address leaks.
Can you post a pic?
 
Old Nov 7, 2015 | 08:42 AM
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Yea it would definitely keep vac/boost lines more organized and help cut down on vac/boost leak sources. I think I'm going to pick one up and throw it in. I'll post some pics as well when I'm down.
 
Old Nov 7, 2015 | 09:41 PM
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Originally Posted by timccloud
Can you post a pic?
I will when I can, not currently around either car.
 
Old Nov 8, 2015 | 02:24 AM
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Old Nov 10, 2015 | 12:59 PM
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i am running the Vibrant one. much cleaner way to setup vac lines.
 
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Old Nov 10, 2015 | 05:16 PM
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can you post some pics mark?
 
Old Nov 10, 2015 | 09:22 PM
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Ordered mine today. I'm thinking of T'ing into the large port off the top of the plenum. Is that the consensus?
 
Old Nov 11, 2015 | 08:08 AM
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Originally Posted by 32krazy!
can you post some pics mark?
yeah ill try and dig some up. i have it neatl tucked away on top of the brace that holds both intake halves together and its black. i used a large source for it from the plenum and from there i used the vacuum block for wastegates, blow off vavles, fuel pressure regulator etc. i had it done with all AN lines this time
 
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996TT SpoolBus - 204.6 mph 1/2 Mile 996TT WR Aug 2018, 9.5 @ 154 mph, 3.23 60-130 mph, 2.5 100-150 mph Manual Porsche World Record, 1400whp E85
997TT SlowBerry - 205.0 mph 1/2 Mile WR Nov 2018, 9.7 @ 170 mph 1/4 Mile , 3.2 60-130 mph , 2.4 100-150 mph , 1420whp E85
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