Vacuum hose routing for '86 951 with Pedersen vacuum 5 port manifold
10-18-2017, 05:33 PM
#1
Burning Brakes
Thread Starter
Vacuum hose routing for '86 951 with Pedersen vacuum 5 port manifold
I've read the various thread on vac hose routing and want to be triple-sure I get it right the first time, so please bear with me.
This for '86 951 with Lindsey Racing silicone hose and venturi delete, cycling valve delete, and Pedersen 5 port VM mounted to single banjo bolt hole factory intake manifold:
Does the following work, so no Tees are needed?:
The following vacuum hoses go directly (straight shot with no T or connector) to Pedersen VM from 1.) firewall check valve; 2.) fuel vapor purge valve; 3) fuel pressure damper; 4) fuel pressure regulator; 5.) blow off valve, and; 6.) KLR vacuum hose via banjo bolt, per normal.
Bunny ear hoses go to large end of fuel vapor purge valve and to throttle body nipple, per normal.
Large silicone hose goes uncut (no T needed) from brake booster to intake manifold.
Large silicone hoses connect IC hardpipe to idle control and then to intake manifold.
Again, this uses no T connections to avoid potential leaks and to make for generally less internal volume of the hoses for better/faster pneumatic communication, if that make any difference. Each vacuum-activated part (FPR, check valve, etc.) gets its vacuum source directly from the Pedersen vacuum manifold without sharing a hose with another part.
This for '86 951 with Lindsey Racing silicone hose and venturi delete, cycling valve delete, and Pedersen 5 port VM mounted to single banjo bolt hole factory intake manifold:
Does the following work, so no Tees are needed?:
The following vacuum hoses go directly (straight shot with no T or connector) to Pedersen VM from 1.) firewall check valve; 2.) fuel vapor purge valve; 3) fuel pressure damper; 4) fuel pressure regulator; 5.) blow off valve, and; 6.) KLR vacuum hose via banjo bolt, per normal.
Bunny ear hoses go to large end of fuel vapor purge valve and to throttle body nipple, per normal.
Large silicone hose goes uncut (no T needed) from brake booster to intake manifold.
Large silicone hoses connect IC hardpipe to idle control and then to intake manifold.
Again, this uses no T connections to avoid potential leaks and to make for generally less internal volume of the hoses for better/faster pneumatic communication, if that make any difference. Each vacuum-activated part (FPR, check valve, etc.) gets its vacuum source directly from the Pedersen vacuum manifold without sharing a hose with another part.
