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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,410
Garage
Front
An 8" wheel is actually ~9" wide. A 48mm positive offset is 2" off center (4.5") = 6.5" of back spacing which might be a bit too tucked in for a 930 with no spacers in front. Ballpark guess is you need about a 2" spacer to put them flush with the fender lip.

Rear
A 10" wheel has ~11" of actual width. A 40mm positive offset is 1.57" off center (5.5") = 7.1" of back spacing with no spacer. If you have a 1" rear spacer as many 930s do then the wheel is pushed out to 6.1" BS. My guess is you would need an additional 1" spacer in the rear.

Please check my math on this and compare it to what you have now and how you would like it to fit, I simply ran through it quickly off the cuff.
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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 06-10-2007, 04:19 PM
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