something i always wondered

On a twin turbo set up, Both turbos boosting lets say 8 psi.
will the overall pressure be 16 psi or 8 psi and double the volume?
sorry for my ingnorance
i always though it was the latter but never really awnsered it.

thanks

 

the turbos feed into one tube... so if you are boosting 8 psi, that is the total boost you are producing (without getting into pressure drop and where your reading the boost ect)

 

ITS NOT WHAT YOU BOOST THAT COUNTS, ITS WHAT YOUR ENGINE RECIEVES THAT DOES