deleting vacuum pump, need assistance with vacuum lines.

[tig488]

recently had motor rebuilt due to lifter failure, gonna do a vacuum pump delete since DOD is gone.   was gonna run the brake booster to the intake manifold port that usually goes to the PCV for vacuum but not sure where to get vacuum for PCV.  I was considering just putting it to a catch can without vacuum, or another option is a TB spacer with a side port to supply vacuum for the brake booster and leave the PCV where it is.  any thoughts? 

[M1ck3y]

Drill a hole/tap at the back of the manifold for the brake booster. This is common practice for camaro owners looking to run an lt2 intake manifold.

 

https://www.camaro6.com/forums/showthread.php?t=579354&page=6

https://gwatneyperformance.com/product/gpi-brake-booster-ptc-fitting-for-lt2-manifold-modification/

 

Edited April 1, 2023 by M1ck3y

[tig488]

that's risky, if you mess up that manifold that's an expensive replacement, plus id be afraid of small pieces of plastic getting trapped then sucked into the engine.  

[Grumpy Bear]

12 hours ago, tig488 said:

recently had motor rebuilt due to lifter failure, gonna do a vacuum pump delete since DOD is gone.   was gonna run the brake booster to the intake manifold port that usually goes to the PCV for vacuum but not sure where to get vacuum for PCV.  I was considering just putting it to a catch can without vacuum, or another option is a TB spacer with a side port to supply vacuum for the brake booster and leave the PCV where it is.  any thoughts? 

 

"Tee" the line from the PCV valve to the manifold.  

[tig488]

that was my first thought but I don't want to risk oil getting in the brake booster.

[M1ck3y]

21 hours ago, tig488 said:

that's risky, if you mess up that manifold that's an expensive replacement, plus id be afraid of small pieces of plastic getting trapped then sucked into the engine.  

 

These manifolds aren't expensive, and you'd have to be trying pretty hard to screw it up.

[Grumpy Bear]

10 hours ago, tig488 said:

that was my first thought but I don't want to risk oil getting in the brake booster.

 

I've been running spliced for over a year. No oil in the booster. Flow is always toward the manifold. 

[M1ck3y]

1 hour ago, Grumpy Bear said:

 

I've been running spliced for over a year. No oil in the booster. Flow is always toward the manifold. 

 

Which splitter do you have

[tig488]

40 minutes ago, M1ck3y said:

 

Which splitter do you have

what he said.  

[Grumpy Bear]

25 minutes ago, tig488 said:

what he said.  

 

I made it with a brass "T" and some hose. If that is what you mean by 'splitter". 

[tig488]

and you didnt put any kind of inline filter or catch can before the brake booster?

[Grumpy Bear]

Nope. Just made sure the booster was not the lines low point.