Vacuum block alternatives.

[brandnu6]

Hello all. I would like to like to know if there is a "better" arrangement of vacuum lines coming into the "vacuum block," and the vacuum block itself? As I was searching for a "boost leak" at fairly low pressure, 10 to 12 psi, I discovered air was coming out of everywhere! I also had a leak at T.B. to Plenum gasket, and IAC as well. I ordered a 4-piece gasket kit for everything in that area. However, I would really like to "redesign" the vacuum block/1 1/2" hoses that are to close together to secure them with "Ty-Wraps. Does anyone have any suggestions? thanks in advance.

 

[pacecarta]

theres a 6port cotton used to sell
like this one

86 87 Buick Grand National T Type Turbo Billet CNC Vacuum Block | eBay

Billet Vacuum Block For Your 1986 or 1987 Buick Regal Grand National, Turbo T, T-Type, GNX. Vacuum Block. CNC Machined From USA made 6061-T651 Aluminum Alloy in the USA. Features (6) 1/8" NPT ports for your vacuum needs such as fuel pressure regulator, Hobbs switch, PVC Valve, MAP Sensor, etc.

www.ebay.com

you can thread in your own 1/8npt fitting to barb for hoses or use pushlock fittings

because of the config you cant use the steel vac lines but it eliminates three connection points that can leak

personally i hate the stock look billet vac block for the reason you stated , ports are too close
when you run a pte plenum or spacer it raises the block into the hood liner
a low profile block would have been better with wider spacing
i like to block it off with a flat plate and drill the intake or the plenum for 1/8" fittings and pushlock hose

 

[pacecarta]

cruz also sells a relocate kit

CRUZ Performance Champion Intake Vacuum Relocation Kit W/ Spacer

- Delete the stock style vacuum block on top of the throttle body and replace it with this billet aluminum relocation kit - Includes: - Spacer drilled and tapped at rear - Billet remote mount vacuum block - Push lock fittings - Vacuum line - Gaskets - Stainless hardware - Available with 1/2 or 1...

cruzperformance.com

 

[pacecarta]

another thing to add , the nipples need to be sealed , remove and locktite works good
for the hoses if they are new (clean ) you can use a drop of superglue which is what gm did on them

 

[1KWIKSIX]

cruz also sells a relocate kit

CRUZ Performance Champion Intake Vacuum Relocation Kit W/ Spacer

- Delete the stock style vacuum block on top of the throttle body and replace it with this billet aluminum relocation kit - Includes: - Spacer drilled and tapped at rear - Billet remote mount vacuum block - Push lock fittings - Vacuum line - Gaskets - Stainless hardware - Available with 1/2 or 1...

cruzperformance.com

Went this route & luv it, have no regrets . It sure cleans up the look in the already cluttered engine bay & with Cruz’s new Angled Plenum Spacer there is no rubbing on the hood liner

 

['87 Turbo "T"]

I personally eliminated my vacuum block. Drilled, tapped, & used barbed fitting(secured w/zip ties) on the rear on my intake.

Added thread sealer on threads. Must admit, I don't hate the Loctite idea.

 

[John Larkin]

Wow, $275, i realize support your vendors but that's alot of dough.

 

[brandnu6]

theres a 6port cotton used to sell
like this one

86 87 Buick Grand National T Type Turbo Billet CNC Vacuum Block | eBay

Billet Vacuum Block For Your 1986 or 1987 Buick Regal Grand National, Turbo T, T-Type, GNX. Vacuum Block. CNC Machined From USA made 6061-T651 Aluminum Alloy in the USA. Features (6) 1/8" NPT ports for your vacuum needs such as fuel pressure regulator, Hobbs switch, PVC Valve, MAP Sensor, etc.

www.ebay.com

you can thread in your own 1/8npt fitting to barb for hoses or use pushlock fittings

because of the config you cant use the steel vac lines but it eliminates three connection points that can leak

personally i hate the stock look billet vac block for the reason you stated , ports are too close
when you run a pte plenum or spacer it raises the block into the hood liner
a low profile block would have been better with wider spacing
i like to block it off with a flat plate and drill the intake or the plenum for 1/8" fittings and pushlock hose

Hello Pacecarta. Thanks very much for info. on "updated design" vacuum block. I went online an ordered one, one left now. Take care and be safe...

 

[1986 Buick GX1]

theres a 6port cotton used to sell
like this one

86 87 Buick Grand National T Type Turbo Billet CNC Vacuum Block | eBay

Billet Vacuum Block For Your 1986 or 1987 Buick Regal Grand National, Turbo T, T-Type, GNX. Vacuum Block. CNC Machined From USA made 6061-T651 Aluminum Alloy in the USA. Features (6) 1/8" NPT ports for your vacuum needs such as fuel pressure regulator, Hobbs switch, PVC Valve, MAP Sensor, etc.

www.ebay.com

you can thread in your own 1/8npt fitting to barb for hoses or use pushlock fittings

because of the config you cant use the steel vac lines but it eliminates three connection points that can leak

personally i hate the stock look billet vac block for the reason you stated , ports are too close
when you run a pte plenum or spacer it raises the block into the hood liner
a low profile block would have been better with wider spacing
i like to block it off with a flat plate and drill the intake or the plenum for 1/8" fittings and pushlock hose

After going to the PTE plenum I machined a taper into it to tip it down.
I also machined the aluminum vac block .100” off the bottom and another .100” off the top, with angles on the front and back there’s clearance now.
I did have to assemble one hose at a time to get the zip ties on with HD Gates hose.
I kind of like a more factory look.

 

[CRUZ Performance]

Wow, $275, i realize support your vendors but that's alot of dough.

Ok
Really

so
3 CNC'd Custom CRUZ products plus the kit consist of

1X CRUZ Billet Intake spacer with tapped holes
1X CRUZ Billet Vacuum remote block
1X CRUZ Billet Block Off plate
15x Push lock fittings & others
3X Gaskets
7X Stainless allen head bolts
20Ft of vacuum hose

Please start making for me as CHEAP as YOU can so I can save some Money and start relaxing!!!!

 

[John Larkin]

I have bought products from Don before and was pleased. The vacuum block kit is alot of money to me. If you want to buy it, then do so. When you are on a public forum, you can expect to get comments.

 

[TType85]

If you don't want to put holes in your intake; the Cruz kit is the way to go. I didn't care so this is the way I did it:

From L -> R
Push lock to FP Regulator
4an to vacuum booster (summit sells a 4an check valve for the booster)
MAT (I am running a Holley so I moved it to the intake)
Push lock to MAP
Plug
Push lock to vacuum ball/hvac

The plenum spacer has been drilled for the pcv and is restricted down to what Bison specified, can't remember the size off hand. No more leaks, no popped off lines.

I also had a strange leak at the IAC, it was leaking though the connector.

 

[CRUZ Performance]

I have bought products from Don before and was pleased. The vacuum block kit is alot of money to me. If you want to buy it, then do so. When you are on a public forum, you can expect to get comments.

You sure can
I won't hold my BREATH waiting for you to make CHEAPER!

 

[SS/GN]

Lots of work and $$$$, stock stuff works just fine.

 

[Warp6]

I have the Cruz kit on my 86 GN and it's really nice. There's a lot of bang for your buck in this kit