Well I finally got my tvs 1900 on with new set up.
Last year was running 5 .5 psi with 1 5/8 headers /3.7 pulleysize/stock motor.
This year 1 7/8 headers , eps blower cam, dod/vvt delete. 3.2 pulley. Only runs 7.5 psi.
Does the cam and better exhaust really eat up that that much? Was under impression.1 on pulley is worth 1 psi.
The trans didn't like the ride home!

 

Mods after the MAP sensor will decrease boost, and mods before the MAP sensor will increase boost. Just because the boost number is not as high as you expected doesn't mean it didn't have the gains you hoped for. As said before, boost is just a measure of restriction.

 

Boost is related to the restrictions you have, the higher the restrictions the higher the boost. Since you added better flowing exhaust and added a cam, you have less restrictions now so you make less boost. The blower will flow the exact same amount of air at a given blower RPM, regardless of boost. The lower the boost seen by the blower, the higher the efficiency. So you're making power more efficiently now.

Here's a quote from Tim Z I found and a link to the post he wrote it in.

https://www.performancetrucks.net/fo...7/#post4685013

-Edit: Gadgetized beat me to it.