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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,257
Garage
+1 on the 18s, there are no tires for 15s, 16s, and limitted for 17s.
You need to stay as close to 25" tall as you can. A 315/30-17 would be perfect but they don't exist.

Porsche is full of $hit with their comment on tall wheels. What's the diference between running a 25.5" tall 18 wheel with 12" wide tires or a 24.5" tall 15" wheel with 13.5" wide tires? I've done both on my SC for a decade with zero issues. Maintain your car properly and you'll be fine.
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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 02-13-2008, 08:56 PM
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