BBE fusion install- what vacuum source?

[Jkno91]

Installing my fusion exhaust. What vacuum source did you use? A picture would be a great help. Thanks!

[Xdt]

Jkno91,

Below is the information I received from Marc Haibeck during my fusion installation
for my 90 Z. The install is clean and the instructions provided great results. Xavier

Here is some advice for the muffler valve control system. A vacuum
line is needed to control the muffler valves. An easy way get it to
the back of the car, is to use the fuel vent line. It starts in the
area on the frame below the power steering pump. A 3/16" line.
Disconnect it and let the hose vent to the air. Connect the line to
the Cruise vacuum connection at the center of the left wheel house.
Connect the other end to the B&B controller. The B&B
instructions are
for the controller are for a C6 Corvette. Not too useful
for a ZR-1.
I mount the controller up high behind the right rear
tire. I then tap
into 12 volt power at the FX3 control module in the right rear
storage well with the ABS controller. Pins D16 ground and C16
ignition power.
Best regards.
Marc

[chriskinzel]

Originally Posted by Xdt

Jkno91,



Below is the information I received from Marc Haibeck during my fusion installation

for my 90 Z. The install is clean and the instructions provided great results. Xavier



Here is some advice for the muffler valve control system. A vacuum

line is needed to control the muffler valves. An easy way get it to

the back of the car, is to use the fuel vent line. It starts in the

area on the frame below the power steering pump. A 3/16" line.

Disconnect it and let the hose vent to the air. Connect the line to

the Cruise vacuum connection at the center of the left wheel house.

Connect the other end to the B&B controller. The B&B

instructions are

for the controller are for a C6 Corvette. Not too useful

for a ZR-1.

I mount the controller up high behind the right rear

tire. I then tap

into 12 volt power at the FX3 control module in the right rear

storage well with the ABS controller. Pins D16 ground and C16

ignition power.

Best regards.

Marc

I have the BB Fusion on my car. Marc installed it do I can’t help with your questions, but you will love it when it is done[emoji106]

[Top Toy]

The easier approach is to not connect the valves. I ordered mine without valves and have no regrets. [emoji6]

Sent from my HTC U11 using ZR-1 Net Registry mobile app

[XfireZ51]

I don’t have the B+B Fusion, but have a custom setup which is very similar using
DynoMax UltraFlows w C6Z06 NPP valves. If using on a 91-95 ZR, THERE’s a vacuum line from the motor going to the charcoal canister in the passenger rear corner. I’m using that line to feed vacuum to the valves w a check valve. Also installed electrical switch in line for on demand closed/open.
I believe mike100 former ZR used micro switches to control opening based on MAP and rpm.