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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,520
If you are going to the trouble of adding spacers I would take it a step further and customize the spacing to put the outer lip of the wheel exactly where you want it. With 9" & 11" total widths you will have plenty of room on the inside so that is no longer a concern.

Does your 930 have a factory 1" spacer on the rear with no spacer in the front?

An 11" wheel with 8.25" of back spacing leaves only 2.75" from the hub to the outer rim lip, 2" for the front. Measure that same distance on the wheels you are using now and extrapolate what additional spacing you would need to put it exactly where you want it.

Let me know the answer to what spacers you are using now and I will calculate your new spacing based on what I am using and see if we come up with the same figures.

Off the cuff I'd say you need an extra 1" in the rear and 1.5" in the front.

Bill Verburg is probably getting a woody reading this, ha!
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

Last edited by RarlyL8; 06-08-2007 at 06:18 AM..
Old 06-08-2007, 06:10 AM
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