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Brando
 
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Join Date: May 2006
Location: Las vegas
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final details for the swap

OK so most have said it's not a day job to bolt on the 930 fuel and exhaust parts to a sc. Other than figuring out the feed and drain issue from the turbo, The question I have is the distrbutor detail to retard? Do I need to have it recurved or is simply retarding it's posistion good enough? I have a Tial with a small green spring. I do need the muffler still and a couple other things, but it still doesn't seem to be a difficult thing.
The big question I have is if I got quicker spooling turbo, will it be a problem if I keep the boost in check with the stock 79sc internals?
Anyone have anyother things I'm not thinking of right now?
Thanks, BA
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Old 03-18-2008, 07:27 AM
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Brando
 
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comon punks
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Old 03-18-2008, 11:54 AM
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Crotchety Old Bastard
 
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The early 930 distributor does not retard on boost so you should be OK to just set the advance accordingly on your SC unit (dependent upon C/R). Ben has an SC dizzy on his turbocharged engine and may be more help.

I can help you with the muffler

The turbo should match the low boost parameter. THe SC turbo guys need to chime in on the particulars.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 03-18-2008, 12:31 PM
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one of the great unwashed
 
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A quicker spooling-than-what-turbo?
I run the stock SC distributor in mine, maybe at about 28 degrees total advance. Seems fine. If I retard it, the car is a dog off boost. Maybe someday I will recurve it. I suggest running yours as-is for a bit and see how it works.
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Patrick E. Keefe
78 SC
01 Boxster
Old 03-18-2008, 02:53 PM
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Brando
 
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For now I have a k26
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Turbo powa!
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Old 03-18-2008, 05:05 PM
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one of the great unwashed
 
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Here's what I have...

Rajay T04 in "V" trim. Makes good power, even though I'm down in the bottom of the center island at 6 PSI boost.. Check the Garrett maps, as there may be something a bit more efficient. I can get away with some more boost pressure in mine.



This may be a K26 map, not sure what trim...I would think that K26 would be about as a quick spool as you would want

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Patrick E. Keefe
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Old 03-18-2008, 06:14 PM
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