Offset question ?

[genius]

Can anyone tell me the correct wheel offset for an '82 Sud Ti ?....I'm trying to calculate offsets for a new set of wheels but without a starting point it's proving a bit difficult !

(I've been told everyting from 35mm-45mm !!!!)

Cheers

[eminence]

Here you can see a table with the original off-set sizes:


Giulia (4-d) 42 mm
Bertone (63-76) 38 mm
Spider (66-93) 38 mm
AR Berlina 38 mm
Montreal 25 mm
Alfasud Serie 1 45 mm
Alfasud Super 45 mm
Alfasud ti Ser2 39 mm
Alfasud Serie 3 39 mm
Sprint (Sud) 39 mm
Alfetta, all 45 mm
Giulietta, all 45 mm
Alfa 33, all 39 mm
Alfa 75 1.6-2.0 45 mm
Alfa 75 2.5 40 mm
Alfa 75 TS/Turb 30 mm
Alfa 75 3.0 30 mm
Alfa 90 2.0 45 mm
Alfa 90 2.5 40 mm
Alfa 145/146
1.4/1.6/1.7 16V 43 mm
Alfa 145/146
T. Spark/Q/ti 50 mm
Alfa 155, Serie 1
(first model) 50 mm
Alfa 155, Serie 2
(wide aches) 41 mm
Alfa 156 41 mm
Alfa 164 TS/V6 40 mm
Alfa 164 24V 32 mm
Alfa 166 41 mm
Alfetta GT/GTV 45 mm
GTV 2.0 45 mm
GTV6 2.5 40 mm
Spider T.S./V6 35 mm
Spider V6 24V 31 mm
GTV T. Spark 35 mm
GTV V6 24V 31 mm

But then there is the additional thing about bolt circle.

Old Alfas have 4x108 mm.
Alfasud/33/75/90/145/146 have 4x98 mm
Big engine (TS, Turbo, V6) 75/90 have 5x98 mm
147/156 have 5x98 mm
166 has 5x108 mm

The center hole has a diameter of 58,6 mm, but from the starting of the Fiat aera (1987) this size changed on new models to 58,1 mm.

If you find a new wheel which fits on a new Alfa, and you would like to use it on your Alfa 33, then you have to enlarge the center hole by 0,5 mm.

[genius]

Cheers Simon..

I checked your Sprint site...Nice ! !

.....how's the Alfa scene on your side of the Tasman ?

[eminence]

Thanks. I put a bit of effort into the site whilst I still owned my Sprint.

I think there is a fairly good Alfa scene here. There are plenty of Alfas getting around and the clubs seem to be quite big.

http://www.alfaclub.org.au - AROCA
italiancarclub (I have forgotten the URL unfortunately) - young punks with big bucks (one P plater has twin turbo setup on a GTV)

But I am not a member of either as I can't be bothered driving all the way across Melbourne to go to the meetings! So I joined a local non-Alfa club where I am in fact the only Alfa owner. They run Motorkhanas and Autocross mainly.

Simon