17" or 18" what's the poop

[suburban99]

1997 Boxster 5 speed

I unfortunely hit a broken water access hole in the road while on a road trip. It punctured my tire and put a pencil lead hole in the rim. The rim and tire cannot be repaired.

I am looking for a set of Porsche rims, Mine are 17" Chrome turbo twists. Most good used I am finding are 18". What is the major difference between 18 and 17?

What offset would I need for my car without spacers? Thanks

[ericinboca]

1997 Boxster 5 speed

I unfortunely hit a broken water access hole in the road while on a road trip. It punctured my tire and put a pencil lead hole in the rim. The rim and tire cannot be repaired.

I am looking for a set of Porsche rims, Mine are 17" Chrome turbo twists. Most good used I am finding are 18". What is the major difference between 18 and 17?

What offset would I need for my car without spacers? Thanks

For figuring out what widths and offsets work for 97 - 04 986, you will want to get your hands on TSB 4440. Either the dealer, I suppose, or contributing members can view them here on renntech.

You might want to look at tires too before deciding on a rim size - do 17s have more choices or are they cheaper, for example.

I know some autocross guys that like to use the smallest wheels they can get for more torque, but for a street car I'm not sure there is much difference except for looks, cost, availability.