Welcome to RennTech.org Community, Guest
There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.
Here are some of the features available - once you register at RennTech.org
- View Classified Ads
- DIY Tutorials
- Porsche TSB Listings (limited)
- VIN Decoder
- Special Offers
-
OBD II P-Codes - Paint Codes
- Registry
- Videos System
- View Reviews
- and get rid of this welcome message
It takes just a few minutes to register, and it's FREE
Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)
- No ads - advertisements are removed
- Access the Contributors Only Forum
- Contributing Members Only Downloads
- Send attachments with PMs
- All image/file storage limits are substantially increased for all Contributing Members
- Option Codes Lookup
- VIN Option Lookups (limited)
Search the Community
Showing results for tags 'wheel size'.
Found 2 results
-
Hello, I just returned to State side after ten years of living overseas. To jump into the winter here is Colorado, I need to get winter tires on my 1999 996 C4. Service manual shows the following as a starting point. My C4 has 225/40 R 18 for fronts and possibly 7.5J x 18 - 50 for wheel. Similarly 265/35 R 18 for rear and possibly 10 J x18 65 wheel. However, winter tire conversion may not be so easy. It seems to require 17 inch wheels: 205/50 R 17 89T M+S - 7Jxł7 - 55 for front. 225/45 R 17 90T M + S - 8.5J x 17 - 50. I haven't done anythig to brake caliper hoping that there wont be intrference with smaller radius. Any input or even insight into this is appreciated.
-
Hey guys hoping somebody on here can fill me in on capabilities of the dealer software: Can you adjust the wheel size/speedometer pulse count in the computer? I have owners manual sized tires and the speedometer is WAY off, to the tune of 5mph fast. The speed doesn'tbother me so much as the odometer being way out of proportion to actual miles driven. I am also considering going away form the stock size tires so this would be extremely helpful for that. thanks!
