![]() |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
![]() |
Van B |
![]()
Post
#1
|
Senior Member ![]() ![]() ![]() Group: Members Posts: 1,613 Joined: 20-October 21 From: Maryland Member No.: 26,011 Region Association: None ![]() ![]() |
So, compared to GPS, my Speedo is consistently 5mph too optimistic. My tires are 195/65-15. I’ve read in other threads that has shown to be a good size for correcting error.
So, not really wanting to go taller still, is there any other way to calibrate the Speedo? Thanks, Van |
![]() ![]() |
Olympic 914 |
![]()
Post
#2
|
![]() ![]() ![]() Group: Members Posts: 1,680 Joined: 7-July 11 From: Pittsburgh PA Member No.: 13,287 Region Association: North East States ![]() ![]() |
Running 225-50x16 and the heights is as close as I could get to stock, actually a little taller I believe.
My speedo also reads 5 mph faster than the GPS readings. on the highway is the only time I really worry about it. and since I already know it ... No problem. Taking a trip I usually have the phone on, running WAZE, and that gives me a GPS speed reading and warning of Police, debris on road, traffic etc. |
![]() ![]() |
![]() |
Lo-Fi Version | Time is now: 17th June 2024 - 01:00 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |