RidzRiv Addict
Name : Greg Age : 31 Location : Wisconsin Joined : 2011-02-07 Post Count : 590 Merit : 17
| Subject: series 1 s/c and na Wed Feb 09, 2011 2:12 pm | |
| What are the differences between the series 1 l27 and the series 1 l67 besides the fact that the l27 has a supercharger? | |
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RidzRiv Addict
Name : Greg Age : 31 Location : Wisconsin Joined : 2011-02-07 Post Count : 590 Merit : 17
| Subject: Re: series 1 s/c and na Wed Feb 09, 2011 2:13 pm | |
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Abaddon Expert
Name : Scott Location : Macomb, Michigan Joined : 2010-02-24 Post Count : 4315 Merit : 185
| Subject: Re: series 1 s/c and na Wed Feb 09, 2011 2:32 pm | |
| Really the only thing that differs between the 2 is the compression ratios (higher on the N/A engine), and the upper/lower Intake manifolds. Everything else is pretty much the same except for a couple of wiring harnesses and the PCM. | |
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RidzRiv Addict
Name : Greg Age : 31 Location : Wisconsin Joined : 2011-02-07 Post Count : 590 Merit : 17
| Subject: Re: series 1 s/c and na Wed Feb 09, 2011 2:32 pm | |
| so how difficult would it be to supercharge? | |
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Karma Aficionado
Name : Andrew Age : 40 Location : Ontario, Canada Joined : 2008-01-14 Post Count : 1949 Merit : 123
| Subject: Re: series 1 s/c and na Wed Feb 09, 2011 3:48 pm | |
| Rods and bearings in the l27 don't like boost. People have done if, but never successful for long.
http://www.pontiacbonnevilleclub.com/forum/viewtopic.php?f=44&t=194
If you are set on the l27 then turbo it. But for the money and effort, just swap in a series 2 SC. Its cheaper than even throwing in a series 1 SC. Series 2 SC should be able to go in whatever you've got if you take the wiring harness and PCM. _________________ | |
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albertj Master
Name : Location : Finger Lakes of New York State Joined : 2007-05-31 Post Count : 8685 Merit : 181
| Subject: Re: series 1 s/c and na Wed Feb 09, 2011 7:25 pm | |
| L27 + supercharge = eventual fail.
L67 is what it is because of an over-engineered bottom end. I was told but can not verify that the L67 bottom end can take well over 900 (brake) horsepower.
If you look around a bit odds are you'll find an L67 in a junked oldsmobile 88LSS or 98, or a forgotten high end Buick Century, or a plushed-out Bonnevile just waiting for you for short money. Try phoning these guys:
http://www.horseheadspickapart.com
and ask if they have any GM cars with the supercharged 3800 sitting in the yard. They usually have 2 or 3 at a time that are rebuildable. Check price. Then try a junkyard near you and use the price you got to work 'em down -- IF you are prepared to buy. Cash talks. | |
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| Subject: Re: series 1 s/c and na | |
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