Forums Forums Enthusiast Forums A - Z Autowirral escort gti 0-60 time??

The speedo accuracy is always going to be in question.

I have a GPS system and according to it, my Clio Fidji is about 8% out whereas my manual Clio RT is almost 100% accurate.

It is amazing how much difference a simple thing like having your tyres at the correct pressure can make. For instance, if my tyres on my RT are quite low, it can knock the accuracy of the speed out by upto 3 - 4%.

GPS is the most reliable way to measure speed other laser I believe.

I think GPS IS the most accurate way. Im not sure how accurate civilian GPS is as ive heard its less accurate than military GPS but its still gotta be god damn accurate and can measure u moving across the country at 60. I want GPS!!!

Laser and radar SHOULD be very accurate if all the components in the Transmitter/Reciever are built to a very special tollerance

Why would anyone want to spend thousands on an escort cossie when they can get similar performance from a 1.8GTI escort at a fraction of the cost.

lol good one

If 60 on the clocks is 60 in real money in an escort...

How can Civilian GPS be different from military GPS? Its all the same system, the only difference being the speed at which it updates

Im not at liberty to discuss that with u mate. Lets just say that the GPS in the F3s "logs in" to the sattelites to gain access to absolute pinpoint accuracy,where this ISNT needed for civilian use

quote
"The United States military has access to GPS L1 and a second frequency, L2. The use of L1 and L2 permits the transfer of data with a higher level of security. In addition to heightened security, the United States military also has access to much more accurate positioning by using the Precise Positioning System (PPS)(using L1+2). Use of the PPS is usually limited to the U.S. military and other domestic government agencies."

Lets just say the US arent the only ones who can access L2 and PPS

Very recently L1 had the SelectiveAvailability feature removed (which was there to stop civilians,ie/ terrorists from having military precision in their positioning systems),it was decided that giving accuracy to within 10-20metres to road/boat users is worth a LOT of money (doubling GPS sales in one year alone)

So hook that up to the Escort to see how accurate the clocks are

I bet this Snickers bar, 60 on the clocks aint 60...


.....btw, Im that confident, Ive already take a bite out of it

Would if i could but its IMPOSSIBLE
has anyone ever compared a speedo to a GPS speed reader at 60MPh?

I have with my "civillian" GPS unit yes.

I'm with stuy, my GPS always seems to lagg behind

Its not the GPS "lagging" behind, its the GPS giving an accurate reading.

A speedo can be upto 10% higher then the true speed legally, but not anything lower.

Almost all speedo's are out, as I have already said, things as silly as having your tyres at the wrong pressure can knock a speed reading out.

A GPS on the other hand is not affected by anything other then roads with dense trees covering them, really thick cloud and tunnels. The way a GPS works out the speed is the time you have taken to travel from one co-ordinate to the next.

so what speed does ur GPS's say when ur speedo says 60 matty and joe?

or better put,when the GPS says 60 (thats when ur REALLY doin 60),what do ur clocks say

In my Clio Fidji, it says im doing about 55-56mph when my speedo is saying 60mph, however in my manual RT it says about 59-60 (almost accurate) when the speedo says 60.

I'm afraid it is being laggy. when i go around corners before it shows me doing so, I call that laggy, not a dodgy speedo/tyre pressures

It shouldnt be like that mate. The only reson it should lag at all is the update speed is only every 1 second or so.

Other then that is should be fine...