Laust vacuum manifold
10-09-2010, 02:05 PM
#17
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Rennlist Member
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Yeah, it looks like they are still popular and I am just fine, thanks.
The main functional benefit is faster response time of the vacuum controlled actuators, mainly the FPR. Porsche apparently thought it important enough to create a separate hole in the intake manifold (IM) for the S-models (dual banjo bolt). The original layout had the actuators “sucking through the same thin straw” (a.k.a. vacuum line).
The 5-port vacuum manifold offer an extra port for other uses such as boost controlled water injection.
Better organized and easier to understand/remember vacuum layout, each actuator has its own vacuum line directly to the vacuum source (IM).
Laust
PS Now I am down to two (2) VMs
The main functional benefit is faster response time of the vacuum controlled actuators, mainly the FPR. Porsche apparently thought it important enough to create a separate hole in the intake manifold (IM) for the S-models (dual banjo bolt). The original layout had the actuators “sucking through the same thin straw” (a.k.a. vacuum line).
The 5-port vacuum manifold offer an extra port for other uses such as boost controlled water injection.
Better organized and easier to understand/remember vacuum layout, each actuator has its own vacuum line directly to the vacuum source (IM).
Laust
PS Now I am down to two (2) VMs
