SalvageBaltSS

iTrader: (13)

hey guys, i have a stock 06 ss sc. and well im only putting out 9lbs of boost at wide open throttle , is that normal? or should it be higher? if so, how can i bring the boost up?

Powell Race Parts

iTrader: (3)

check the health of your engine.
pay particular attention to the boost solenoid control; if the cross shaft of the boost control valve is seized from age , especially if you have run methanol/water mix injection, the butterfly will bleed off boost as the actuator cannot close it( as the shaft is seized)

Other issues with an SC include belt slip....

good luck.

06cobalt racer

iTrader: (11)

should be 12.5 stock

SalvageBaltSS

iTrader: (13)

the car has 2,500 miles( car was hit hard , and sat around till it was fixed) , and its never ran meth/water, like i said 100% stock, i was just wondering if 9lbs stock is normal or not. but thanks for the info

SalvageBaltSS

iTrader: (13)

okay, ill go up to 10, then it goes down to 9, and stays there. but im also just looking at the gauge, so it might be off. lol

we had some srt4s, and some had boost leaks, so im guessing this might be the same problem.

06cobalt racer

iTrader: (11)

if it spikes then goes down in the higher rpm's then you are probably slipping your belt

SalvageBaltSS

iTrader: (13)

okay, thanks guys for the help/info.

06cobalt racer

iTrader: (11)

yeah just try a new belt. after sitting that long it is probably dried out and stretched

user 72239

iTrader: (4)

Depends on altitude too. when I was at WOT at redline I would see maybe 10.5 psi being at 5500+ ft.

Staged07SS

iTrader: (25)

Correct.

Temp as well.

But 9 psi is pretty low.

SalvageBaltSS

iTrader: (13)

i live up at like 500ft, so i dont think its that, but it could be the belt, it doesnt really bother me, but i was just thinking, 9psi does seem low, compared to the srt4s at like 13 stock. lol

Staged07SS

iTrader: (25)

U cant really compare your boost pressure to an SRT-4's.

Ur not too high above sea level. I would def check your belt, and boost bypass valve.

SalvageBaltSS

iTrader: (13)

ya i understand that cause its turbo, and a 2.4. but okay. thanks.