I don't have enough vacuum ports/ sources
Thread Starter
Joined: Dec 1999
Posts: 1,747
Likes: 26
From: Rugby, England
Car: 1988 IROC Vert
Engine: 355 ZZ4
Transmission: T5 Manual
I don't have enough vacuum ports/ sources
With recent additions of:
Boost gauge
MSD BTM box
Procharger bypass valve
FMU
I am having to tee from the stock barbs. I'm told the bypass valve and FMU really need their own dedicated sources and I just don't have them available.
What do people do?
Boost gauge
MSD BTM box
Procharger bypass valve
FMU
I am having to tee from the stock barbs. I'm told the bypass valve and FMU really need their own dedicated sources and I just don't have them available.
What do people do?
Joined: Feb 2001
Posts: 8,494
Likes: 411
From: Sophia, NC
Car: 2016 Camaro SS + 1986 Z28
Re: I don't have enough vacuum ports/ sources
I would think drilling/tapping would be very easy. Just have to find a good spot on the plenum. I was planning on doing that myself, right on the underside, just above the EGR, which I have deleted.
Supreme Member
Joined: Jan 2000
Posts: 3,178
Likes: 48
From: Tracy, CA
Car: '87 IROC
Engine: LB9
Transmission: TH700R4
Re: I don't have enough vacuum ports/ sources
There are two tooling holes underneath the plenum that can be tapped 1/8-NPT "as-is".
You will need to drill a smaller hole at the bottom of the tooling hole into the plenum.
You will need to drill a smaller hole at the bottom of the tooling hole into the plenum.
Last edited by paulo57509; Jun 16, 2016 at 03:00 PM.
Thread
Thread Starter
Forum
Replies
Last Post
elciscolio
Engine/Drivetrain/Suspension Parts for Sale
9
May 7, 2016 08:10 AM