I get to like 5800 at 5lbs of boost I hit a rev limit.anywhere below 5800 car runs great.

Setup:
B16a block JE8.0:1 pistons
Eagle rods arp studs
Stock GSR head
57trim Garret .50ar
Walboro 255 750cc injectors
Phearable.net base map for now
Stock map! My GM map is ordered I think that's my problem

 

Can someone please help

 

Most likely its your map sensor, but if you are running on a basemap maybe the limp is a good thing. You don't want to over do it on a basemap

Any more info on the ecu?

 

P28 with phearable.Net chip. Once I get my gm map il see what happenes I'm running with a 38mm tail with a .7bar spring so hopfully it goes away but by next week il have s300 with boost solenoid an take it to my local tunner

 

did you tell phearable that you had the gm 3 bar or that you had the stock map sensor?

the map is calibrated for only one map sensor you cant just swap whenever you want. they probly put a 5psi boost cut on there because it is just that a basemap, you shouldnt be out there beating on that car UNTUNED.

 

Alright well I'm just gonna wait til I get s300 n get it tuned