What is stock boost level for a Series II SC - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 08-12-2003, 11:44 PM   #1
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Default What is stock boost level for a Series II SC

Hi all,
I just went and looked at a 1997 Buick Regal GS. 126,000 miles, totally loaded. Only options not there were rear spoiler, and the sunroof. Firemist red with the factory chrome rims. Perfect body, and perfect running. Price:$5000 /bo.
I am going to get my SLE cleaned up to sell and then head to the bank for a little loan.

Anyhow, what I am wondering is what is stock boost level for a Series II L67?
Also, what are problems to watch for?
Motor, tranny, supercharger are all very smooth and without noises. On the digital boost guage it shows peak boost of 6.5 psi. Is that correct? Seems low compared to the 21 psi I run in my Lebaron GTC Convertable.
It really pulled well at that level, but no doubt it will be running a bit more by the time I am done modding (I'd probably never be done).
Anyhow, let me know of any common problems with the Series II L67. Hope to have the car within the next week or two ( the car is sitting out in a hickville town about 30 miles from anywhere and it'* been for sale for 3 weeks and I am the first to call or even look at it.
Thanks in advance,
Stylez
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Old 08-15-2003, 04:35 PM   #2
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Mine seemed to run about 7-8psi on the analog gauge. Now it PEGS way past 10psi with the 3.4" SLP pulley. If it was warm out that could make a difference, so can altitude!

Jay
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Old 08-15-2003, 09:01 PM   #3
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I think 6 is stock. I have never gotten mine above 6.78 PSI using the autotap to guage.
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Old 08-16-2003, 01:06 PM   #4
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Stock boost rated by GM is 6psi. It is usually closer to 6.5 or 7psi, but it is supposed to be 6psi. A 3.4 pulley will bring that number up to 13 or 14psi on a stock engine, and will go up or down depending on exhaust and intake mods.
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Old 08-17-2003, 01:43 PM   #5
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Hey Stylez, if you're selling your car, would you wanna sell me your intake you got? I don't know if you're trying to sell it with mods to some kid, or de modded or not. Thanks, just hit me up with a PM sometime if you want to.
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