Robert993TT

Own a set of cup 2 wheels. The rear are 8" winter version for the widebody 993. ET is 30. Do they fit a Boxster S? Was thinking 225/45/17 would be good in the snow if it comes to that. The front are the same as standard cup 2. ET is 55. They fit the Boxster.

I used the cup 2 wheels during winter storage of my 993 turbo.

Now that I have the Boxster with intention to drive in lower temperatures as semi-daily driver. I think the winter wheels can be of better use on the Boxster.

928S4DUBAI

I'm running 7/55 with 205 50 front and 9/55 with 255 40 rear ,both with 12mm hubcentric spacers , 8/70 should be ok with spacers.

Robert993TT

Thank you for the reply. I use spacers in the front and rear on the turbo to fit the Cu2 wheels. I´m going to talk my tire dealer where I have my wheels in storage. See what spacers I need.

928S4DUBAI

I have 70 / 9's on my 993 C2, 20mm spacers, you will prob need 15 or 20mm on your 986.

Robert993TT

I think you are right. I will check with the tire dealer within a few days. Winter is a couple of months away anyway.

Delta II

Hello Robert, I do not want to derail this thread, but I have questions regarding the figment of the Cup II rim on your 993tt. I have a 993 C4S and am looking at a similar setup for my car. I will PM you the specifics.

Thanks

Robert993TT

You may as well write your question down here in this thread. That way others can write down their experience that others can benefit from in the future.

The part number on the rear wheel that I use is 993 362 126 02. I would guess it´s the best setup if anyone would want to drive their wide body 993 in the snow. Note that there are other options.

Have a look at this PDF:

http://www.pcarworkshop.com/images/3...1998_64028.pdf

Robert993TT

I just test mounted the wheels at the tire dealer. The rear fit the Boxster S without spacers. There are not much, if any space for spacers. The fronts where never an issue.

Delta II

Great information in your post, and the link you provided answers most of my questions. Can you confirm that you used the 5mm(front) and 31mm (rear) spacer rings as described in the Technical Informatin sheet? Also, I am assuming that there are no figment problems clearing the stock 'big red' brake calipers as equipped on the 993TT and 993 C4S.

Thanks again

Robert993TT

I believe I made a misstake in my first post where I mentioned the ET. The ET is suppose to be 30 not 70. I read from the wrong line in the technical information sheet posted in a later post. The wheel fit without spacer in the rear but will look funny. That way you may use snow chains. As I remember I choose the spacer that move the wheel out the most. I believe I bought the 21 mm spacer for fitment on the turbo. In the front 5 mm. There are no problems clearing the "big red" calibers using the cup 2 wheels (front part no 993 362 124 00 and rear 993 362 126 02).

I will change the ET in the first post so that a future reader won't be confused.

If you planing on using summer tires I would use a wider rear wheel than the "winter" version. The narrow version is better if there are snow. High speed on motorway that are clear from snow and ice I think I would choose a wheel that you can mount 255/40 R 17 on. Take a look at the sheet for part number of the cup 2 wheel and source a set second hand if you don't have a set in your possession yet.

Delta II

I plan on using the car in Reno / Tahoe area over the winter, where we can expect temperatures below freezing. I do not expect to use the car in the snow, outside of getting caught off guard. Wider rears should be okay. I am also excited to see the car with a bit more rubber to rim ratio. I was always a fan of the look that early 911's have with competition rubber on them. I guess I just do not appreciate the current trends of upsizing the rim and cladding them in a narrow strip of a tire.

Thanks again for your information. It is not easy to find real world experience on 'downsizing' tires for any 911.

928S4DUBAI

def won't need spacers with et 30!

Robert993TT

You will find that the comfort will increase due to higher sidewall and the steering will feel a bit different due to the narrow tire infront.

I drove the turbo twice in the snow. Both times late evening when there where no snowplowed salted roads. First fresh snow for the year. I think you will be surprised how good the 993 is in the snow. Other than that I just drove the turbo every couple of weeks when the roads where free from snow and dry just to keep the turbo running. There are mandatory laws where I live that we use snow tires during the winter months. I bought the wheels with snow tires for 350 Euros a few years back. I don´t think there are many using their 993s in wintertime anymore.

I think you are wise to put on winter tires if you plan on using the your car when the temperatures are low. They are night and day even if the temperature are above freezing. The performance tires are not good in low temperatures. Especially if its moisture or wet roads. They can be dangerous if you need to do a quick maneuver.

There are always people saying that they are gifted drivers. That they don´t need snow tires. I do wonder if they ever tried and compared the two.

def right on that comment!