does anyone know the bolt pattern and the offset for a 1980 phone dial wheel
 

does anyone know the bolt pattern and the offset for a 1980 phone dial wheel? Any idea what size wheels you can use on that car? thanks

what material are the phone dial wheels made of? and can they be polished to take off the paint? thanks

as I recall, phone dials came in both 15 and 16 inch varieties. they were found on 924/944/ and 928. I do not recommend 15 inch phone dials as those tire sizes are becoming increasingly hard to get---16's are headed that way as well. no tire size smaller than a 225/50/16 for 928 either, as it is a heavier car and needs some meat underneath you.....

if you look on the back of most Porsche wheels, you can find the wheels size (ex: 15x6) and the offset (ex: et 55mm) on the backside of the wheel.....

the largest size tire wheel package for the OB is (using Porsche wheels):

18 x 10 et 67mm front
18 x 11 et 67mm rear

or

19 x 8 et 55 front
19 x 11 et 67mm rear

tire sizes vary, but you should be able to go 245x35x19 front and 315x25x19 rear
18 inch sizes aren't much different, just smaller.

customs are a whole different ball game...and a whole lot more money.

you can use most anything smaller than these--your choice.


the phone dials are made of alloy, can be polished to a mirror finish with the right touch---


--Russ

stock wheels for '80 would have a 65mm offset and be either 15 (rare for '80) or 16
I'd recommend moving up to a 17, you'll get a wider range of available wheels and tires

Bolt pattern is 5 x 130. They are made of aluminum and can be polished.

i remember seeing a post somewhere that there is some German paint for the phone dials (I have them on my 944 and my 928)