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Registered User
Join Date: Aug 2005
Location: san francisco
Posts: 1,545
New to the 930

I just recently got my 83 Euro 930 on the road. It was reported to have sc cams. I just put an Andial one bar spring and 8:39 r&p in it.

I did the r&p and one bar spring before ever having driven it. I also first had it gone through and tuned up by Tom Amon - mobile Porsche mechanic.

While it runs great and is fast when the boost comes on, I'm not overly impressed. It just seems to have alot of lag. I was hoping it wouldn't be so drastic with the new gears and sc cams.

This is the first 930 I've driven. Are 930's really this doggy before boost?

Craig Backer

Old 11-16-2006, 12:37 AM
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WydRyd's Avatar
Join Date: Mar 2002
Posts: 3,563
Nice looking car, congrats

930's are well known for their laggish performance and there's a few things you can do to minimise lag on these cars.

You'll have to spend a few thousand dollars in bolt-on mods, but it's well worth it. Get yourself a set of aftermarket headers, free flowing exhaust system & more efficient intercooler (the OEM unit is a paper weight). Couple that with a more modern turbocharger and pre-boost drivability/torque is greatly improved
'89 911 Turbo Cab
Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
Old 11-16-2006, 01:45 AM
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Ruff1's Avatar
Join Date: Jan 2005
Location: Canada
Posts: 174
nice car! do u have more pics of it and are the windows tinted? i have the same slant nose and cant figure out if i should get the windows tinted.
Old 11-16-2006, 08:33 PM
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Registered User
Join Date: Aug 2006
Location: Cleveland, Georgia
Posts: 149
I have an '86. It's got the short R/P, GHL headers, Fabspeed muffler, K27-2700 turbo, SC cams, and Kokeln intercooler. It's running just over 1 bar (mostly because the exhaust makes a .8 bar spring run higher)

Admittedly, this is now old-tech as far as performance mods because better parts seem to be available now. I'm very pleased with the performance. The boost comes on as low as 2250 and I get full boost as early as about 2700 (not that I can watch it for long)

I originally had a GHL dual-out muffler on the car (soon to be for sale), but it was too loud for me. The GHL actually let it spool a little quicker. Be careful about more than 1 bar of boost and look into fuel enrichment if you go further with mods. You can run lean at higher RPM's and that's very unsafe for the motor.

That's a very nice looking car!

Andy Glass
'86 930 Kokeln IC, K27-7200, SC cams, GHL headers, Fabspeed muffler, Short R&P , misc other mistakes made...
Old 11-16-2006, 09:23 PM
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