99 C4

Wanted to know if the following wheels will fit my 99 C4 narrow body. Looking to get some snow tires and wanted to clarify if this set will fit?

Snow tires on factory "solid spoke turbo twists" Fronts wheels are 8x18" (50et) offset, front tires are 225/40VR/18. The rear wheels are 18x10" (47et) offset, rear tires are 265/35/VR18.

and

summer tires on 18X11" (45et) and two 18x8"(50et) "hollow spoke factory turbo twists"

Thanks in advance

RJMDAD996

Looks Good, Should Work

Viken

I don't think the rears would work. Both, 10" (ET47) and 11" (ET45) were designed to work on widebody 996's. What works on the narrow body is 10" (ET65).

JS

An 18x11 in a factory wheel would have a proper offset for a narrow body of 63mm.

99 C4

Just spoke to Manhattan Motor Cars in NYC and the service guy told me that a (47et) offset, rear 10' rim with 265/35/VR18 tire is ok. So I'm confused now, is the 47et ok. Should I go for it or not?

LVDell

Of course he will tell you it is ok. But to get the proper wheel you need to go with the 65 offset in the 10" and 63 in the 11".

The Boxster can handle the 10" rim with the 47 offset (what porsche has for the 986)

Rears according to Porsche:
986 8.5" 48 9" 52 10' 47
996 (NARROW) 10" 65 11" 63

Viken

Uh, Porsche never specified a 10" wheel for the 986. The following is what was fitted on the Boxsters rear:

7" x 16" - ET40
8.5" x 17" - ET50
9" x 18" - ET52

The 10" with the 47 mm offset is strictly approved for the widebody 996. That's not to say it doesn't work on some other models including the Boxster.

Viken

Here's the deal. The 65 mm offset 10" wheel sit very close to the rear fenders. The 47 mm 10" wheel will come 3/4" farther out from that. Do you want a wheel that potentially might cause the tires to rub? I wouldn't.

LVDell

Actually Porsche DID specify that (for the sport techno). Take a peek at the Summer Wheels and Tires Teq2004 bulletin.

For the Rears:
8.5" is 48
9" is 52
10" is 47

Viken

You are right, I see it now. My bad. I wonder why these sizes were not specified before 2004. I was going by memory and sorry about the confusion.

LVDell

No problem. Just wanted to make sure I was "citing the source" so there was no confusion either.

Cheers,
Dell

tagurit

so 8.5" is 48
9" is 52
10" is 47
and these numbers are for the 1999-2000 narrow body? so guys but I want to make sure before I buy some wheels. Thanks, in advance.

LVDell

Nope, those are for the 986.

The 996 narrow are as follows:
Rears: 10" is 65 and 11" is 63

JS

Yes, thats correct Factory spec for the rears on the 996.

tagurit

im looking to buy 19x8.5 and 19x11 for my 2000 c4 cab. From my understanding the offset for the rear is 63", what is the proper offset for the 19x8.5? Thanks!