Low boost with my sc
Thread Starter
Senior Member
Posts like a 4 Banger
Joined: Aug 2007
Posts: 107
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From: Milwaukee, Wisconsin

From what i have been reading i think my stock boost level should be around 5
Plz correct me if i am wrong
But i am only showing about 2psi
Any suggestions would be helpful
(94 bonneville ssei)
Plz correct me if i am wrong
But i am only showing about 2psi
Any suggestions would be helpful
(94 bonneville ssei)
hmmmm.
I believe that the stock boost should be around 8 - 10 PSI at wide open throttle. I know that on my '93 SSEi, when I floor it, the boost hits around 9 PSI at about 5000 RPM.
If you are showing only approximatly 2 PSI at wide open throttle, I would say that something is wrong for sure. What would be wrong, I myself could only guess at, but I am sure that one our resident gearheads will probably chime in soon in and explain any possible problems.
I believe that the stock boost should be around 8 - 10 PSI at wide open throttle. I know that on my '93 SSEi, when I floor it, the boost hits around 9 PSI at about 5000 RPM.
If you are showing only approximatly 2 PSI at wide open throttle, I would say that something is wrong for sure. What would be wrong, I myself could only guess at, but I am sure that one our resident gearheads will probably chime in soon in and explain any possible problems.
Thread Starter
Senior Member
Posts like a 4 Banger
Joined: Aug 2007
Posts: 107
Likes: 0
From: Milwaukee, Wisconsin

on my way home from work today, my sc started making a lot of unusuall noises
i think i may need to rebuild it, i will see if i can get a video of the sound
i think i may need to rebuild it, i will see if i can get a video of the sound
Bad bearings and/or a coupler don't reduce boost. It'* either a vacuum leak at the BCS/BCA, a bad BCA or BCS, or a sticky bypass valve.
We'll start with the sound and go from there. You should be getting 7-8 psi stock on a 94/95.
We'll start with the sound and go from there. You should be getting 7-8 psi stock on a 94/95.





