RonnyÅ

This is the first time I see another 928 with the same wheels as my car. But mine are only 8,5in front and 9'inch in the back.

Strosek Ultra

Ronny, my blue car has the same wheels as the red Strosek Ultra but in silver. The wheels are made in Italy by OZ Racing. The 17" wheels are front 9" and rear 13" wide.
http://www.tuningfever.fr/fr/pics/pi...he-928-gts.php

My wifes red car has wheels made by Kercher in Germany. Same dimension except the front wheels being 9.5" wide.
http://www.kerscher-tuning.de/raeder/index.php?id=2

Ake

545svk

I really like the DP look. This one appear to have Fuchs wheels on it. Does anyone know if the wheels as fitted to a 911 3.3l Turbo fit a '87 s4?

Harvey928

What an awesome car. Love it

Strosek Ultra

At 3.19 into the video you can see my old friend Tomas in his red 928 DP. Only three or four 928 DP cars were built here in Sweden during the 80´s by a man called Zirkelbach who did build quite a lot of flat nose 911 cars. The 928 DP has small 15" wheels. Here are some pictures.
https://www.google.se/search?q=Zirke...&bih=369&dpr=1

Here is a video from the Zirkelbach garage somewhere in the 80´s. Sorry for the swedish language. It is said Zirkelbach delivered more than 100 cars annually to the US and the price tag in those days was over $ 150K.

More about 928 DP: http://www.1000sel.com/index.php/porsche-928

Ake

The Fixer

+1!

RonnyÅ

I know. They are forged and not cast (and very light), and I think I found out the name was OZ Racing Fittipaldi. I'm thinking of trying to change the outer rings on my back wheels, to have them a bit wider and with a nice pollished edge.
Maby they where put on my car the same time it got it's Strosek wings.

eijun

I actually want the body kit, especially the door vent air tunnel area which looks like it should cool the rear brakes which also will prevent too much dust from going to the rear of the car being it goes outward (similar to the I forgot who's white race car that has it in the front to cool the front brakes)

Strosek Ultra

Ronny, these companies in Sweden can help you modify your rims.

http://www.frandeforsmekaniska.se/reparation.html

http://www.falgfixarna.se/tjanster/modifiering.html

http://www.youtube.com/watch?v=7w0PEhzxemI#t=19

Ake

Strosek Ultra

Eijun, the rear brake vent air tunnels do not work very well and there is always brake dust at the rear of the car.
Ake

Harvey928

Nice cars Ake what year is the GTS?

Strosek Ultra

Harvey, I am not sure but I think the GTS is a 1994. It belongs to a friend of mine and was once heavily damaged from a crash. He has done a tremendous job building up the GTS to mint condition, you should see the white interiour, from two crashed cars.
Ake

Jherriott

Oh! I thought the molds got destroyed in a factory fire?

eijun

I know, its because there isnt much wind that goes into it when compared to the front. Still better then nothing

Now the main question is how does it affect drag?

Strosek Ultra

Eijun, the very wide tires will create more drag reducing top speed. A well known German 911 tuner always uses narrow OEM tires in order to maximize top speed on the Autobahn. The big 335/35 x 17" Pirelli rear tires will wear out very quickly. If I drive carefully staying within the speed-limits (which is almost impossible to do) I might get 10.000 km or 6.000 miles out of the tires. Furthermore the big rear tires are about 6,5% larger in circumference which is the same as a taller final drive meaning a less sporty ride with less acceleration especially in top gear and less top speed. The wide body and the large rear wing also will create more drag.
Ake