Ranger-Forums - The Ultimate Ford Ranger Resource

General Ford Ranger Discussion General discussion of the Ford Ranger that does not fit in any other sub-forum.
Sponsored by:
Sponsored by: DashLynx

which is more accurate? scanguage or speedometer

Thread Tools
 
Search this Thread
 
  #1  
Old 06-24-2010
Tys 4x4 FTW's Avatar
RF Veteran
Thread Starter
iTrader: (8)
Join Date: Jul 2008
Location: Las Vegas, Nevada
Posts: 6,575
Likes: 0
Received 2 Likes on 2 Posts
which is more accurate? scanguage or speedometer
my scanguage reads 2 mph lower then the speedometer on the truck. and it is calibrated correctly. which do i trust?
 
Reply Like
  #2  
Old 06-24-2010
01_ranger_4x4's Avatar
Member
iTrader: (4)
Join Date: Mar 2009
Location: Muskegon, Michigan
Posts: 3,585
Likes: 0
Received 5 Likes on 2 Posts
hmm, im not sure. 2MPH off isnt really that much, your speedo was probably off that much from the factory. if you have a GPS id check them with that.
 
Reply Like
  #3  
Old 06-24-2010
04blackedge's Avatar
RF Veteran
iTrader: (13)
Join Date: Jan 2007
Location: Durham, NC
Posts: 23,426
Likes: 0
Received 6 Likes on 6 Posts
I'd GPS verify and then go from there
 
Reply Like
  #4  
Old 06-24-2010
Redneckstone's Avatar
Level III Supporter
iTrader: (2)
Join Date: Jun 2004
Location: usa
Posts: 24,936
Likes: 0
Received 8 Likes on 8 Posts
Get a GPS like a Garmin. set the cruise at 70 on the garmin. then adjust the speedo on the scangauge to match the Garmin with the +- settings
 
Reply Like
  #5  
Old 06-24-2010
01RangerEdge's Avatar
Scrambles the DeathDealer
iTrader: (11)
Join Date: Jul 2009
Location: Jackson, MO
Posts: 7,579
Likes: 0
Received 4 Likes on 4 Posts
If you have an iphone, there is an app that uses the accelerometer to measure speed.
 
Reply Like
  #6  
Old 06-24-2010
FULLSCALE's Avatar
Level III Supporter
iTrader: (12)
Join Date: Mar 2009
Location: Clinton, Ontario
Posts: 8,184
Likes: 0
Received 4 Likes on 3 Posts
Originally Posted by Redneckstone
Get a GPS like a Garmin. set the cruise at 70 on the garmin. then adjust the speedo on the scangauge to match the Garmin with the +- settings
That's the way I did mine. Rechecked it a while later and it's still good.
 
Reply Like
  #7  
Old 06-24-2010
ES894x4's Avatar
Member
Join Date: Jun 2007
Location: Killafornia
Posts: 1,523
Likes: 0
Received 1 Like on 1 Post
speedo's come from the factory a little slow so i would never trust that as a source of your "true" speed
 
Reply Like
  #8  
Old 06-24-2010
Jp7's Avatar
Jp7
Jp7 is offline
Member
iTrader: (9)
Join Date: Sep 2007
Location: N/A
Posts: 3,028
Likes: 0
Received 17 Likes on 14 Posts
Speedo is purposely slow to prevent liability issues on the oems part. scangauge is correct.
 
Reply Like
  #9  
Old 06-24-2010
brianjwilson's Avatar
Member
Join Date: Nov 2006
Location: Hillsboro, Oregon
Posts: 3,650
Likes: 0
Received 2 Likes on 2 Posts
I set the factory speedometer to be accurate according to gps, using my programmer.
 
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
how accurate ?
d0sitmatr
2.9L & 3.0L V6 Tech
7
09-18-2010 11:44 AM
accurate post times with poll.
morris
Ranger-Forums Office
9
06-23-2010 07:13 PM
Scanguage HP & TQ - Post your results!
wydopnthrtl
4.0L OHV & SOHC V6 Tech
118
03-29-2009 02:10 PM
Back to Subforum
General Ford Ranger Discussion
View Next Unread
AC leak search?




Advanced Search
Quick Reply: which is more accurate? scanguage or speedometer


Reply Closed Thread Share

All times are GMT -6. The time now is 05:07 PM.