The Lotus Cars Community banner

1 - 2 of 2 Posts

2,969 Posts
At idle, partial throttle, full throttle?

Idle and decel should be around -20 to -25 inHg possibly even as much -30 inHg in decel at moderate to high RPM.

Partial throttle should be around -10 to -15 inHg

Full throttle should be extremely close to 0

And just for reinforcement of theory. The engine will always pull the same amount of vacuum for a given RPM. The throttle plates position it what limits natures ability to equalize the cylinders back to 0.
1 - 2 of 2 Posts