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Euro 930 vs US 930

Are there advantages to a Euro 930 (1980-1985) such that you would not make performance upgrades which you would make to a US 930 (e.g., 1978, 1986)?

Thanks....
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Hugh Lindberg
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Old 06-14-2010, 06:37 AM
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They would be an advantage over a stock 78-9 US 930 that has very poor heat exchanger/headers.

Only advantage over a 85-88 930 is the US has a cat / muffler.

That and the euro may have a different distributor which IMO is not a good fit with US gas as it dose not seem to have a boost retard function.

The Euro often has the neat side marker lights and smaller rear bumper overrides.

Mostly they are the same if you are going to do any performance upgrades.
Old 06-14-2010, 10:15 AM
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That and the euro may have a different distributor which IMO is not a good fit with US gas as it dose not seem to have a boost retard function.
My 1984 euro retards timing by 14 degrees at 0.8bar, although I don't know if this is the case for other model years.

David
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Old 06-14-2010, 02:47 PM
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The Euro 930 '78-89 was rated at 300HP while the US from '78-'89 is rated at 265HP in '78 and improved to 282HP by '89. There are obvious advantages to the Euro components.
The long blocks are identical. The advantages are the Euro CIS, the Euro heat exchangers and the Euro distributor. Put these items on a 265HP USA/CA engine and you will get your 300HP.
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Old 06-14-2010, 03:03 PM
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Thank you for your responses!

Hugh
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1972T....Now looking for 72-73 911 w/ 2.7 MFI....
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1992 C2 - sold
1983 SC - sold
Old 06-14-2010, 05:23 PM
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Originally Posted by flatsix777 View Post
My 1984 euro retards timing by 14 degrees at 0.8bar, although I don't know if this is the case for other model years.

David
Great info!

Not an expert but I think the single connection pot's on some of the euro cars did not seem to have retard from what I could glean so far. All the dual vac connection pots did have boost retard.

It just seems that a turbo has to have boost retard so I still have some questions on this. However, I would be able to work with either one.

Many believe the euro injection might be an improvement over the late US stuff but I am not sure that is the case. IThe fuel lines do look thicker on the euro but the Lambda US injection with a couple of tricks I believe can deliver more fuel than the non lambda euro systems, contrary to past beliefs. However, it dose not contribuite anything to power in stock tune.

Still seems most the significant difference relating to stock performance seems the exhaust.

To me it just comes down to condition, History, options (non sunroof, LTD slip, sport seats) and tune more than model.

Just what I believe so far.

Last edited by 911st; 06-14-2010 at 06:22 PM..
Old 06-14-2010, 05:46 PM
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