trannyjoe

can you check boost if motors are not under load or does the boat have to be in the water.

SB

iTrader: (1)

Under load.

In neutral, your throttles barely need to be opened to bring engines to redline. Throttles are the airflow / power regulator of your engine.

Griff

A said, must be under load. Even the amount of load will affect boost pressure. I installed a 1" larger drive spacer on my Pantera. The prop bit so much more that boost presure went up 1.5#'s.

trannyjoe

thank you for your help so in the water we go.