Hi guys I have a 08 with 4" turbo back,cold air,lift pump. Egr block plate, truck runs great!!! But feel I have lost some boost. But not sure, I have had truck about 3 weeks. All stock when I bought it. I swear I saw a max boost of 33psi now max I get 29 and 26-27 wot on the highest setting. Does that sound right? Funny thing I get same boost numbers on the middle setting on tuner? Fuel psi is rock soild and truck runs great. Just not sure why I don't see 33max any more??? Any thing to check or do?? Any one else have same set up? What boost are u seeing?
Thank u !!!!

 

I'm pretty sure the stock map sensor only reads to 28-29. Could be wrong and u did hit 33.


Posted because I'm bored.

 

Yea when I first put in truck I saw max 33 not sure what it was holding at though

 

Then u may have a boost leak


Posted because I'm bored.

 

what are you using to read these boosts readings? have you put on a cold air intake or changed anything to do with the air side of things?

 

He is using a minimax which uses the factory map sensor


Posted because I'm bored.

 

Yea reading with Minn max, I am sorry but I may have had stock air intake on it. I did so many mods so fast. By the time I put my head back on from all the new power and started looking at numbers is when I was like wth max boost 29 I know I saw 34 along the way be for?????Lol I guess I would just like to know what other lmm are seeing for boost with same programmer and exhaust and intake.
Thank u guys!!!!! I looked for boosts but every thing looks good......