I just installed guages & when I punch it, boost goes to 25#, fuel pressure drops from 10# to 6# & EGT goes to 900. Shop manual says max boost is 19#. I've read where the computer will de-fuel when overboosting. Is this something I should fix before a 1,000 mi trip. I won't be loaded or in the hills.

 

My 07 will peg the boost guage past 40 psi if i stomp hard on the go pedal but i think its just the wastegate reacting slowly. I had this happen even before i had many mods done on my truck so i wouldn't get to worried about it. I'm not sure what my boost is supposed to run at but it will consistantly push 25 psi if i'm running hard on a hil or similar load. It had thrown a handfull of overboost codes in the past year but it hasn't hurt anything.

 

from what i understand you wont hurt anything. a stock hx35 turbo can put out a little over 30lbs....some people get alot more, but much over 30 isnt going to help because it will just be all hot air.

 

your perfectly fine up to 35lbs on an HX35 from what I have read, I can get up to 33 on mine and my turbo is perfectly fine...