Whats Wrong With My Boost
 

alright guys im not seeing the boost i should be seeing im wonderin whats wrong. i definitely have plenty of fuel flowing i know thats not the issue. i have hx40 8 blade which is a 56mm wheel and 18cm housing. before i put my fuel pin in, it would max at 20 psi, now itll do 26 psi. ive adjust and adjust the boost elbow and i get no more boost out of it. no matter what gear im in, at WOT, i am only seeing 26 psi max. and ive checked for leaks there are none. any ideas what would cause this?

How is the waste gate set? If its crazy loose no matter what you really do with the elbow it will open. Try clamping the line to teh wastegate head to see if your boost is better.

Also check to make sure you don't have a kink in the line to your gauge.

ive tried the boost elbow all the way in all the out inbetween etc etc etc. ive checked the boost line its not kinked anywhere.

could my IP just not be set right now causing it to spool up? or will the IP not have anything to do with spooling

the ip has everything to do with spooling a turbo.Are you seeing excess fuel coming out the back?

Could be just a leaking waist gate or a cracked housing. Or your just at the limits of how your pump is set-up.

block the waste gate off and see what it does

ill try it soon my trucks still at the body shop but ill mess with it when it gets home. and yes it spits smoke out everywhere

mine was the other way around with the hx 40 low boost (5psi) but no black smoke had to tune to afc better but so much nicer now

ive messed with the afc a ton. its been moved way up and so has the smoke screw. it helped it spool a little better but it still maxes out at 26 psi

Have you tried this yet?