After doing this >>>
for the last month I have solved the wheel problem for us poor SA/FB guys with 4x110 that don't like Konig's/Rota's/Panasport's.
First, some stock dimensions of the "+" wheel:
Diameter: 13"
Width: 5.5"
Bolt Pattern: 4x110mm
Backspacing: 120mm/4.7"
Offset: 38mm/1.5" POSITIVE
Bore Diameter: 2.375" (roughly)
Lug bores: 3/4" (roughly)
OK, so other then finally having a real number for the offset/backspacing, what good is that info? Easy. Nobody makes a 4x110 wheel I like, and 4x114.3mm/4x4.5" is extremely popular. That's why GSL-SE stuff goes for massive $$$. What about those of us either A: on a budget, B: where GSL-SE stuff has dried up, C: can't change the stock brakes due to race class rules, or D: like me, in all of the above?
The answer is adapters. Yes, adapters. The stock flange on the SA/FB brakes is only 3/8" thick. A 3/8" thick adapter will allow double the lug-bolt strength, have a 4x114.3mm STUDDED pattern, and will allow a 15"x8" wheel with a +15 offset to bolt on and be in the STOCK location. As any of you who are into other cars know, that size/bolt pattern wheel is about the most common on earth right now.
So here's what you need:
Diameter: 15"
Width: 8"
Bolt Pattern: 4x114.3mm
Backspacing: 129mm/5.1"
Offset: 15mm/0.6" POSITIVE
Why a 15x8? Well, the stock tire is a 185/70/13, not exactly easy to find. A 205/50/15 (again, about as common as dirt thanks to the Civic and the Miata) is the same rolling diameter and designed for a 15x8 no problem. So you don't have to worry about fender rubbing, strut rub, or even changing out your spedometer gear.
OK, so you need a 4x110 lug to 4x114.3 stud adapter in 3/8" thick, where to buy it? Well, I'm having a set custom made. Now that he'll have the CNC program setup he can make them whenever I want. A group buy could easily be arranged. I'm sure there's a bazillion outfits out there who can also one-off you a set.
OK, but what if I'm not comfortable with only a 3/8" thick adapter? Easy, use a common 1/2" thick one. The fender-to-wheel clearance can allow the extra 1/8" with no problems whatsoever.
Any questions?