rhys

Just for a lark, I'm contemplating changing wheel and tire size. What are the largest wheels and widest tires that will, without modification, fit my 1982 US/AT?

hacker-pschorr

As long as the offset is correct you could run 20's.

Realistically the best wheels for the money are 997 18's & 19's. They fit without any modificatons on any 928.

Quite a few 928's are wearing these (I have a set on my 81):
http://cgi.ebay.com/ebaymotors/18-Wh...spagenameZWDVW

Or 19's (these are non OEM):
http://cgi.ebay.com/ebaymotors/19-8-...spagenameZWDVW

mark kibort

8" backspacing on 9.5 fronts and 11 rears, can fit 275s up front and 295s in the rear. 305s in the rear with some fender rolling and maybe a 1/8" spacer.
mk

SMTCapeCod

Depends on taste and careful fitment.
I find I'm getting increasingly old-school with regard to the former.
:-(

largecar379

these pictures of mine should say it all---no really, these are the largest you can go without serious fender mods:

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

997 Carrera and Carrera S with those sizes.

an 18 x 10 will work on the front, but you may have to do some fender work.

a 19 x 10 won't work because of offsets (in a factory Porsche wheel). You'll need to go aftermarket to use this size up front......

see picture below:


--Russ

928ntslow

36's Baybee!!! Trow sum hi-jackers udder dare an git er up in da clowdz. Itz da tang, yu feelin me? Ah mean lock itz da onlay ting day be rollin down in El Ay. Yu Deeg?

marton

remember this foto?

Marton

rhys

Well, there is a point beyond which I'm unwilling to go

rhys

Duug!

F451

No one has chimed in about Andrew's

===> 928 Wheel Fitment Calculator <=== ?

I haven't studied it, but it looks pretty good.

And our Australian mates have also done some pretty cool wheel/"tyre" write ups: http://www.landsharkoz.com/tt/ttwheels.htm

LT Texan

275/30-19 and 305/25-19, about a 25 1/2" diameter and 25"

That's a BIG wheel and a WIDE tire!

reno808

ummm some 24's

largecar379

forgot to put the picture on.....

Stinaris

Loving the side exit exhaust(s).

Are they down both sides?
That must sound awesome.

AO

Russ-

I'd like to get my calculator to work better with the pre-S4 body style. On the rears, are you running any kind of spacer? Also what brand and aspect tire are you running?