Series l or ll - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 01-31-2004, 05:04 AM   #1
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Default Series l or ll

I am currently running the 3800 Series l SC. is the series ll better? If so in what aspect. and should I think of investing in it?
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Old 01-31-2004, 12:38 PM   #2
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The Series II has more hp and torque, but it delivers that power at a higher RPM which is SLIGHTLY less desireable.....not enough to keep me away if I wanted to upgrade!

Series 1 varied by year, as well. 92 was the beginning, 93 was slightly improved (different heads and slightly different valvetrain), then 94 and 95 were identical. The Series II has ALOT more aftermarket mod support, though. The Series II has a bigger supercharger, but it spins slower to produce the same flow, although the indicated boost with stock pulleys is lower (inconsequential.....it'* the flow rate that really matters). This can be overcome in both Series with a smaller SC pulley for more flow and boost, but the M62 has to spin faster to accomplish this.

97 was the first year for the new transmission in the Series II, but there are thoughts that the older 4T60 series had fewer problems, despite it'* age. Again, though, the 60 series has less aftermarket support than the 65.

What it would boil down to for me, if I were looking for a different SSEi, I would look for Series II if it was in the budget, otherwise, I'm quite happy with my Series 1, and it does have alot of potential. They're all tough as hell
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Old 01-31-2004, 01:50 PM   #3
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Regaurdles.. they are all BULLET PROOF biznatch!! haha.
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Old 01-31-2004, 03:15 PM   #4
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ok I have on good authority that my SC is starting to go. My father is a mechanic and he noticed some wierd **** going on with my SC I cant remember off hand. I figure if it does go instead of just replacing the damn thing just upgrading my entire engine to the Series ll.
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Old 01-31-2004, 03:22 PM   #5
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The series I SC is damn near a series II to me.

225hp
275torque
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Old 01-31-2004, 07:30 PM   #6
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Replacing the entire engine because of a bad supercharger is not cost effective.

More 3800 History:

http://engine.firebirdv6.com/3800history.html
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Old 02-01-2004, 10:41 PM   #7
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Quote:
Originally Posted by fuddyduddy121
Replacing the entire engine because of a bad supercharger is not cost effective.

More 3800 History:


http://engine.firebirdv6.com/3800history.html
NO doubt!!!!!!!!!
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Old 02-02-2004, 12:07 PM   #8
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Superchargers are inexpensive to repair, and rarely need to be replaced. Let'* get a diagnosis going down in Forced Induction.
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