Fifth Gear

Kremmen · 10th October 2007, 07:54

We are not alone -

Their tests of the Z4 and the 350Z v the handheld speed camera showed that those 2 also over read by about 5mph.

I just think digital is more noticeable.

Unknownsoldier · 10th October 2007, 11:56

This is good really as the more people who's cars overead the slower everyone will be driving, even when they think they're going quickly.

Tom

Koen · 10th October 2007, 12:24

I know that it's a legal issue that speedo's may not under-read. Therefor all speedo's do over-read, but with different margins apparently. And I guess the overall fault is bigger at higer speeds, too. (proportional?)
Also, tyre pressure and tyre wear contribute to this.

K.

Bungle · 10th October 2007, 16:34

Funny enough, the error seems less at higher speed, so is not proportional as you would expect.
The legal difference I believe is 10%. At low speeds, (<25mph) the error is greater than 10%, more like 15 or 20%!

As the tyres wear, the over-read worsens.

I am seriously considering following Pottsy's footsteps and installing a speedo healer to sort this out. I hate it. What makes is worse is that my driving school Corsa, which is a horrible, horrible excuse for a car, has a MUCH more accurate speedo. I mean spot-on at town speeds, and no more than 1 or 2 mph out at motorway speeds.

10th October 2007, 07:54	#1 (permalink)
Kremmen Krem de la Krem Civinfo guru Join Date: 7th January 2007 Location: West London Posts: 2,510 Thanks: 6 Thanked 10 Times in 10 Posts	Fifth Gear We are not alone - Their tests of the Z4 and the 350Z v the handheld speed camera showed that those 2 also over read by about 5mph. I just think digital is more noticeable.

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This thread is about: Fifth Gear, it's in Any non Civic chat here please! at the Honda Civic forum Civinfo; We are not alone - Their tests of the Z4 and the 350Z v the handheld speed camera showed that those 2 also over read ...

10th October 2007, 11:56	#2 (permalink)
Unknownsoldier Comedian/Smart Ase Civinfo guru* Join Date: 22nd September 2007 Location: Kent, UK Posts: 2,415 Thanks: 46 Thanked 25 Times in 23 Posts	This is good really as the more people who's cars overead the slower everyone will be driving, even when they think they're going quickly. Tom

10th October 2007, 12:24	#3 (permalink)
Koen Supporter Triangular Exhaust Join Date: 18th September 2007 Location: Belgium Posts: 238 Thanks: 0 Thanked 0 Times in 0 Posts	I know that it's a legal issue that speedo's may not under-read. Therefor all speedo's do over-read, but with different margins apparently. And I guess the overall fault is bigger at higer speeds, too. (proportional?) Also, tyre pressure and tyre wear contribute to this. K.

10th October 2007, 16:34	#4 (permalink)
Bungle Rocketship door handle Join Date: 3rd July 2006 Location: SE London/Kent Posts: 1,217 Thanks: 0 Thanked 0 Times in 0 Posts	Funny enough, the error seems less at higher speed, so is not proportional as you would expect. The legal difference I believe is 10%. At low speeds, (<25mph) the error is greater than 10%, more like 15 or 20%! As the tyres wear, the over-read worsens. I am seriously considering following Pottsy's footsteps and installing a speedo healer to sort this out. I hate it. What makes is worse is that my driving school Corsa, which is a horrible, horrible excuse for a car, has a MUCH more accurate speedo. I mean spot-on at town speeds, and no more than 1 or 2 mph out at motorway speeds.