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PostPosted: Fri Apr 28, 2017 9:08 pm 
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Year and Trim: 2000 Bonneville SSEI
Hay guys! Got a lot of great help so far with problems on my recently purchased 2000 Bonneville SSEI.
Not sure if I have a problem or not so need some feedback. This is my first factory supercharged car. Had some minor issues that were traced back to vacuum leaks. Stopped at the local GM dealer and found that all the factory formed vacuum lines and rubber connectors are still available for this car so I purchased them figuring they'd be better than aftermarket products. Installed them and the car runs great. Only thing I noticed now is I don't hear the supercharger whine like it did before the new vacuum lines. Boost gauge is still reading correctly and changing as it should based on load and throttle position. Getting up to almost 10psi of boost with full throttle as per the gauge, and the engine sounds real good but no noise I can hear inside the car from the supercharger. Is this normal for this car when it is running properly or is there something I should check or repair?


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PostPosted: Sat Apr 29, 2017 11:49 am 
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Location: Central Illinois
Year and Trim: 1992 SSE
2009 G8 GT
The stock intake blocks the whine pretty well.

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WHITE WHINE - IT'S INTOXICATING. 1992 SSE Supercharged 236.26 ci (.040 Over)
15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Easy Performance Gen 3 Air/Fuel Calibrator, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers and 10" Subs, 1300 watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, McCoy Motorsports Ceramic Coated Ported Exhaust Manifolds, Fan Override, PowerSlot Slotted Rotors.
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim Trailblazer mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser


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PostPosted: Sat Apr 29, 2017 1:05 pm 
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Year and Trim: 2000 Bonneville SSEI
I did see a lot of people saying the aftermarket intakes make the supercharger more noticeable. I guess I'll find out soon. Was thinking about getting the stage II kit from zzp performance that includes the new air box.


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PostPosted: Sat Apr 29, 2017 3:24 pm 
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Year and Trim: 2002 SSEi
2003 SSEi
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10psi is actually higher than stock 7.5 - 8.0 psi. You might not have a stock 3.8" diameter pulley if your actually getting 10 psi.

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PostPosted: Sat Apr 29, 2017 4:28 pm 
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Year and Trim: 2000 Bonneville SSEI
Well I didn't check it with a real gauge I'm only going by the factory boost gauge on the dash. Just wanted to make sure everything was normal since I didn't hear anything anymore. Read on a previous post that air temp and density have a lot to do with it as well.


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PostPosted: Sat Apr 29, 2017 5:44 pm 
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Year and Trim: 2000 Bonniville SSEi L67
sseilmnop wrote:
10psi is actually higher than stock 7.5 - 8.0 psi. You might not have a stock 3.8" diameter pulley if your actually getting 10 psi.


ON MY 2000 SSEi, 70 kpa is max which converts to approx 10 psi so I would assume that is normal.

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PostPosted: Sun Apr 30, 2017 9:32 am 
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Year and Trim: 2002 SSEi
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96 SSEi wrote:
sseilmnop wrote:
10psi is actually higher than stock 7.5 - 8.0 psi. You might not have a stock 3.8" diameter pulley if your actually getting 10 psi.


ON MY 2000 SSEi, 70 kpa is max which converts to approx 10 psi so I would assume that is normal.


Is that the Max you see on the Gauge? Does you needle actually point at 70 kpa or 10 psi while running?

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02 SSEI, 1.94 Yella Terra,Gen5 , N*,2-1/4""Phenolic Intercooler,
I SELL, Phenolic Intercoolers, Pulley Pullers, Throttle Bodies, Etc...!!


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PostPosted: Sun Apr 30, 2017 9:53 am 
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Year and Trim: 2000 Bonneville SSEI
Well it will point to 10psi briefly under load at full throttle. But then will drop when I let off the throttle.


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PostPosted: Sun Apr 30, 2017 11:34 am 
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Year and Trim: 1992 SSE
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It should drop when you get off the throttle. It should stay pretty steady at max output when you have the gas floored.

_________________
Image
WHITE WHINE - IT'S INTOXICATING. 1992 SSE Supercharged 236.26 ci (.040 Over)
15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Easy Performance Gen 3 Air/Fuel Calibrator, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers and 10" Subs, 1300 watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, McCoy Motorsports Ceramic Coated Ported Exhaust Manifolds, Fan Override, PowerSlot Slotted Rotors.
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim Trailblazer mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser


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