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Join Date: Jan 2004
Location: Milwaukee, WI
Posts: 3,210
Turbo the SC 3.0 or Source a 3.3L???

Guys,
I have been going back and forth on this daily and need some advice on which route to take in order to finally have a turbocharged 911.

So the question is do I TC the 3.0L with a 930 CIS, MK 993 header set-up and muffler, and K27 (plus all of the add ons like fuel pump, oil drain/scavange, etc)

OR

Source a 3.3L?

The one good thing about my current engine is I recently did all of the head studs and a top end (Thanks for the help M&K). I ported the heads for twin plug (that is not currently in use), and many of the components have been powder coated to my liking.

Obviously with the 3.3L I would have an engine already tubocharged and was set-up to do so. I may have found one of a reasonalbe price, but some assembly is required. Also I would probably have additional expense with headers, turbo, but this could be done down the road.

Thanks for the advice! Cheers.
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Jeremy C.
Why's he calling me meat? I'm the one driving a Porsche. (Bull Durham)
----Nothing is far away in this car!----
-1978 911 SC TURBO, Minerva Blue Targa 965 update.
-2008 550i M-Sport
Old 01-28-2009, 08:21 AM
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Lower the compression and use the 3.0, your heads have better port sizes than a stock 3.3 and you already know the condition of your engine.
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75 930, 76 930, 83 SC EFI turbo
Old 01-28-2009, 10:13 AM
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Thanks for the insight.
One bonus for the 3.3L is I have the compression data on it as well and can verify it is in good shape. I am certain it has less miles than my SC engine, which only has 87K on it.
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Jeremy C.
Why's he calling me meat? I'm the one driving a Porsche. (Bull Durham)
----Nothing is far away in this car!----
-1978 911 SC TURBO, Minerva Blue Targa 965 update.
-2008 550i M-Sport
Old 01-28-2009, 10:30 AM
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