Well the other day i was doing some runs cuz i was bored( i was on a empty back road) and i glanced at my boost gauge and it hit close to 20 psi, now im wondering if somethings wrong? any ideas?

 

boost will vary to keep you constant at 260hp/260tq. Its part of the torque management, although i believe 20psi to be on the high end for stock.

 

i test drove one it was always around 20-21psi.. . but gauge only said horsepower around 200. i chalked the 200 up to the whole "learndown" for the first 1000 miles or so i hear about.

granted i live at 6'200 feet. . . .

 

Well at first it was boosting 15. And now it holds 15 and slowly goes to 20

 

20 psi on a stock ss/tc

Something isn't right there, I've heard some people getting 16 and 17 psi but not 20

I only hit 14. whatever and most of the time tapers down to 13.8 so I probably am a little low but you sir are high

 

Yea I know! I hope nothing is wrong with it, Like I said it goes to 15 then slowly goes to 20 but idk ill try and recorded it amd show you guys.

 

PCM must not be thinking much of it since you have no overboost codes.

Hello from Topeka btw

 

Yeah that's a little weird, are you sure you are stock?

You could possibly be GMS1 if you bought it used, you never know

 

He's in Colorado where the air is less dense. The engine will require more boost to make the same amount of power as an identical engine at a lower elevation. Stock will run up to 21 psi to achieve the air load desired by the engine controller.

Don't worry, there's nothing wrong with your car. It's doing exactly what it's designed to do.

 

UHmmmm i live in Kansas lol, and I was thinking i could be gms1 any ways i can tell i am?

 

Yea mine is stock and sits at 15-16 psi 99% of the time..... dont think my elevation is much different than yours.

The instructions from Crate Engine Depot are --------> http://www.crateenginedepot.com/pdfs/frsp19212711.pdf

You can probably just look for any splicing in the wires for the sensors.

 

You'll have blue and silver stickers on your MAP and TMAP sensors.

 

I've seen 20psi on a stock lnf in 4th gear, its normal.

 

mine always does 15 to 16 psi, but the other day in really humid weather it went up to 19, so i think ur ok there.