Weber manifold vacuum

[zrayr]

Originally Posted by CompClassics

zrayr or Gaz64

Have either of you seen people that have to run external vacuum reservoirs because of vacuum being inadequate enough that they've had to resort to vacuum reservoirs and or external vacuum pumps to create the vacuum that their vehicle needs? .......".

In the context of high performance engines that forum members are likely to be using in a Cobra or other lightweight high performance classic, people I know that had to have vacuum reservoirs and such, ONLY had to do so due to a radical cam that had too much overlap to allow for much manifold vacuum. That was only a concern when vacuum was needed for power brakes, steering, etc.

People that had the sense to do without power brakes & steering needed no vacuum reservoir.

My only "need" for a vacuum signal is because I like to have a vacuum gauge permanently installed.

Z.