Hello! I am new to this. I just picked up a 1989 Porsche 928S4, stock everything. Looking for some new wheels. Please guide me as I have read several conflicting ideas. So I'll cut to the chase, these are the size and dimensions of the rims and tires I want, please let me know if these will work without modifications to the fenders: Front 19" X 8.5 ET 52, Rear 19" X 11 ET 52 (option 1) or ET 67 (option 2), Front tire size will be 245 and rear will be 275.
Please advise.

 

Someone else will probably help further, but the rears at ET52 and 11" wide should work with a little tug on the rear fender, but the 275 will look very stretched with how slim the sidewall will need to be on 19's.

The fronts will likely stick out beyond the front fender at ET52 and will not be great in terms of handling. If you can get the ET67 and 8.5" wide, that will be much better.

 

The link below might help. It's a long thread, but it contains a lot of information and experience with 928 wheel sizes and offsets. You'll find links to wheel & tire sizes & offset calculators as well.

https://rennlist.com/forums/928-foru...d-offsets.html

 

Unless this is a fabulously well-maintained example with everything perfect, your first spending needs to include a bunch of safety-related stuff like fuel hoses, brake hoses and other hoses, belts (including timing belt and related bits), suspension and steering stuff. I can't tell you how many folks find a car that they fall in love with, immediately invest the discretionary budget on flashier tires and wheels, then find that there's over $5k --just in rubber and deferred maintenance parts costs-- needed to make the car a safe and reliable driver. Not trying to scare you off or anything, just sharing a tune I've listened to a few times before.

Will you do your own mechanical work? If you have some experience with the tools and a lot of patience, you picked the perfect car. If that's not your bag, contact Greg Brown at Precision Motorwerks in Anaheim. Probably a good idea to get him to do a good inspection on it anyway, so you have a good working list to guide your efforts.

Also: Read the whole "new visitor" thread at the top of the first page. A tremendous amount of info and guidance is waiting for you there.

Also-Also; Invest the trivial dollars in Rennlist membership. It will easily be the best investment you'll make for your car.


Welcome to the group!

ps: Many of us feel that the '89 is perhaps the best year for these cars. You chose well!

 

Dr. Bob. Thank you for welcoming me to the group. Yeah this is my first real try at forums and such. I appreciate your concern of my anxiousness to get the flashy stuff over the more pertinent safety and reliability issues of a car of this stature. I have gone over this car pretty closely and have found that it has been taken care of very well, imo. (well documented repairs including: timing belt, water pump, tensioners, drive belts, ac compressor, etc.) I own an automtive repair facility so I will be able to do most of the rudimentary repairs, but I will definitely look up your guy in anaheim for the heavier more involved items. Thanks again.

 

You picked the right place to land for support for your car. You also live in one of the best places to own and drive one. I lived in OC for 45 years until June, when we migrated to central Oregon. You have an excellent support network there, with plenty of DIY support, parts close by from Mark and Tom at 928 International, and Greg nearby for stuff you choose not to tackle yourself.

Pencil in the Sharktoberfest event on your calendar for the third weekend in October, at 928 International in Anaheim. It's the annual gathering of 928 owners on the west end of the country, and brings owners from other parts of the country and the world too. You'll get to meet your neighbors!


Oh.... Post up a few pictures of the car, and share some about where it came from and how it found you. Every car and every owner has some history that drew them together. It's fun to find out how each has developed.