Radar speed sign and speedometer
#1
Driver School Candidate
Thread Starter
Join Date: Aug 2006
Location: WA
Posts: 39
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I drive by a radar speed "feedback" sign ("your speed is..." sign) every morning. It is downhill. I've noticed what the sign shows is consistently (1~3mph) less than what my speedometer says.
But on my Accord, the numbers are quite close.
I wonder if my car needs calibration or it is just the shape of ES350 that fools the rador detector?
![Sad](https://www.clublexus.com/forums/images/smilies/sad.gif)
![Uhh...](https://www.clublexus.com/forums/images/smilies/1387914497.gif)
I wonder if my car needs calibration or it is just the shape of ES350 that fools the rador detector?
#3
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I drive by a radar speed "feedback" sign ("your speed is..." sign) every morning. It is downhill. I've noticed what the sign shows is consistently (1~3mph) less than what my speedometer says.
But on my Accord, the numbers are quite close.
I wonder if my car needs calibration or it is just the shape of ES350 that fools the rador detector?
![Sad](https://www.clublexus.com/forums/images/smilies/sad.gif)
![Uhh...](https://www.clublexus.com/forums/images/smilies/1387914497.gif)
I wonder if my car needs calibration or it is just the shape of ES350 that fools the rador detector?
Naughty you if you aren't!
Ha!
FWIW - - I have an uncontrollable urge to see if I can get the largest number on them things!
#4
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I went down a road that had 1 speed display on each side. Going south, mine was off a few mph. Going back north a few hours later, I was right on the money. I don't think they are very accurate.
#5
Super Moderator
![](https://www.clublexus.com/forums/images/ranks/rank-smod2.gif)
#6
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Every single car on the market has an "optimistic" speedo. How optimistic depends on the manufacturer. Rumor has it BMW is one of the guiltiest parties out there.
Keep in mind it's usually not a solid number of mph over, but usually at a ratio. This is purposely added by the manufacturer, and apparently is a "safety" feature to keep people from going as fast.
Keep in mind it's usually not a solid number of mph over, but usually at a ratio. This is purposely added by the manufacturer, and apparently is a "safety" feature to keep people from going as fast.
Thread
Thread Starter
Forum
Replies
Last Post