vsteinh

Hello, I'm new at the forum. I just bought a 928 S4 and I want to change the wheels. I found nice wheels on Craigslist.
I like to ask you guys, if they would fit.

Front 8x18 ET 57, 235/40 ZR18
Rear 10.5x18 ET 60, 265/40 ZR18

Do I need spacers? I really don't want to do any modifications to the car


Thanks for your help

Volkmar

AO

Welcome Volkmar,

The wheel and tire sizes you mention will be fine (assuming the bolt patter is 5x130 - Porsche).

The fronts are perfect. The rears will be close to rubbing on the inside, but shouldn't rub. You might consider picking up a 20 to 25mm hubcentric spacer. I would mount them first then measure the distance between the rubber and the fender to find the size range that you are comfortable with.

daveo90s4

Hi Volkmar,

One of the first things many new owners do after buying a 928 is to replace the wheels with something more modern looking. Most S4's had front wheels with 65mm offset. That offset, as provided by Porsche, is the 'perfect' offset for steering and handling (all other things being equal). As you reduce the offset you also reduce the car's self-centering and induce more tram lining. That in turn makes an otherwise very relaxing-to-drive car into one that is much less relaxing to drive: you have to be steering it all the time.

A friend of mine put wheels with 55mm offsets on his car and it was soun pleasant he reverted back to 65mm offset wheels.

Your proposed 57mm front offset wheels are only 2mmdifferent from his horrid 55mm offset wheels. You too may experience horrid driving.


But if you do it soon enough, before you know just how well a 928 steers with the 65mm offset wheels, then you won't have a point of comparison so may hardly notice the retrograde experience.

I reckon you should keep the original wheels I case you want it to steer properly at a later date!!

Cheers

Dave

The Forgotten On

I run Panamera 10 spokes on my 81. The fronts are basically the same and there is no noticeable change to the steering.
I just need to flare the fronts slightly so they don't rub when going over a bump around a corner above 10 MPh.
PS my suspension is soft. I also don't know if the fenders on an S4 are wider. The extra bit of rubber on the front makes one of the biggest improvements to handling on these cars. Good luck with your choice of rims and tires.

Hai gebissen

Hello, and welcome to the forum. Please post pictures of your S4 when you can. We all want to see.

I recently acquired an '87 S4 myself, and because it had been sitting for years and the tires were 11 years old, I had to change them immediately. I have 18" Sport Technos on it in the following sizes:

Front 8x18 ET50
Rear 10x18 ET47 295/30

(No spacers front or rear)

I get no rubbing in the rear at all, inside or out. My quarters have not been rolled. I had the 11" version (ET63) and also had no rubbing but did have to use a 7mm spacer.

vsteinh

Hello,
thanks for the useful information. I will buy the wheels.

Attached some pics of my new baby.

Volkmar

Bilal928S4

Welcome. That looks like a very clean car.
Enjoy.

Hai gebissen

Very nice. Is this your first 928?

Eplebnista

Very sweet. Congrats.

You are in the right place to get help and advice on your 928. This is a great community.

frankle951

Welcome to the Best info for Porsche 928 shark world !!!!!, nice shark, are the wheels are 18'' ??

vsteinh

Hello,
Sorry to bother again. I found nice Cup Wheels.
They are 7Jx17 ET55 and 9Jx17 ET55.
Would they fit on my S4 (without rolling!) and what would be the right size for the tires?
Thanks 1000x
Volkmar

FiveElements

I think a 7" rim is a bit small for the understeer problems the 928 has. You also need about a ET65 for the front. That wheel set sounds like one for a 993 car.

I went with a Panamera 18" wheel. People put 20" on those cars so the 18" are sold cheap. They are 8" front 9" rear and fairly close ET for the 928 car:

j.kenzie@sbcglobal.net

Nice wheels.

FiveElements

http://www.ebay.com/itm/Porsche-Pana...54aab7&vxp=mtr

Here's a set on eBay for $500

yazid

Gorgeous shark you have there. Congrats!