Has anyone researched an alternative rim stud pattern....do any of the other Eurpean vehicles have same stud pattern as the Porsche 928.
Further question what about offsets...any matches.
So would a set of rims off the Cayenne with a +57 offset all round go on the 88 S4

 

https://rennlist.com/forums/showthre...ht=post+wheels

Doesn't really answer your question, but good for inspiration!

 

AFAIK no other car/SUV uses the bolt pattern ALL of the Porsche models use. So your limited to Porsche or aftermarket made for Porsche. To add even more confusion, the 928 offsets are unique among Porsche so your even more limited. But, yes the Cayenne wheels will work.

 

Jim
thankyou for that ...it has helped.
If i could post i would put a pic of the rims up.
Do you think with the 57 offset shouldnt need spacers, rims are 18 x 8 running 255/40's on rear and 225/40's on front.
All have 57 mm offset

Regards
peter

 

Peter, I think the stock S4 had 55mm rims and the GT for 89 had 60mm all around, so the 57mm is right in between. I don't see a problem at all. The GT did have a 17mm spacer in the rear so you may want to get spacers to move the rear wheels out to the fenders. But that can be done after you have them mounted and can measure how big a spacer you want.

 

Jim
excellent advice, i will go ahead and purchase the rims.
many thanx
peter

 

Jim what you said is not quite correct, in respect to 55 mm offsets, the 928 basically came with 65 mm offset wheels on the front particulary. Also what your post doesn't detail, which for a newbie might be confusing is that the offset means different things as the width changes. That is a 60 offset on a 7" wheel is very different to say a 9" wheel with the same offset. I know that is not what you mentioned but to someone who doesn't know it would seem logical.


The below statement is correct although personally I would NEVER put 4wd wheels on a 928.

Peter look for something better than Cayenne wheels, these will be very heavy and probably ugly, to give you a reference in regard to weight, my wheels are genuine and weigh 8 kgs for the front and 10 kgs for the rear.

Greg

 

I put replica wheels on my 89GT, I think they're for a tourag or cayenne or something. They're probably heavy. The 928 is a beefy looking car, I think these wheels go well with it. Guess it comes down to personal taste.

 

Only other cars I know which have 5x130 bolt pattern Porsche uses are certain Mercedes vans which were only sold in Europe I think and G-wagon and VW Touareg SUV's. I know one local old ROW S which used MB van's steel wheels as winter wheels. All but those simple 16" van wheels are probably way too heavy for 928 use. They will fit but handling will suffer and they might need something added to center to work with hub centric 928 hub. I think all three have 70+ mm diameter center hole while 928 has smaller 60 something mm IIRR.

 

Greg, I think you're confusing backspacing and offset. Offset should be measured between the hub flange and the rim centerline.

 

Personally I have no confusion about this topic but to someone that doesn't understand, it can be confusing, I was just trying to illustrate a point.

e.g

A front wheel off a 928S4 with 7'' width and 65 mm offset compared to the rear wheel off the same car. That rear wheel is 8" wide with 52.3 offset, it will sit out exactly 1" or 25.4 mm further from the hub.

 

I agree with what Greg said, but the wheels in question are 8x18 with a 57 mm offset. At that size I stand by my original assesment that they will fit fine. The 89 GT had a 8'' front and 9" rears with 60 mm offset so these 8" with 57 mm offsets will be okay.

 

Yeah i dont mind that look at all.The Cayenne rims I am looking at are really good looking and beefy to suit th elook of the car.

 

For what its worth, I am a mechanic by trade although having said that I havent practiced in 25 years.
So I cant rely on the ole "me no speaky english" I totally understand what is being said here.
Regards all
Peter

 

Yeah, I had a feeling this would not be a confusing issue for you... What I was getting at was I thought your post might be confusing for the casual reader. Semantics.