my speedo, has always been eratic , and now doesnt work at all,
so can i legally use my tom tom as the speedo ?
also what about the mot ?
regards
steve
[Edited on 25/2/12 by steve m]
Its law to have a functioning Speedo but not sure what form it can take. Its not checked as part of the MOT.
quote:
Originally posted by sdh2903
Its law to have a functioning Speedo but not sure what form it can take. Its not checked as part of the MOT.
I'd imagine not as it's not 100% dependable. What happens in a long tunnel for instance?
Interesting reading here
http://support.runkeeper.com/discussions/problems/1630-what-is-the-gps-sampling-frequency
I think the answer would be no.
I sell gps speedos as secondary speedos for driving school cars & the like, they are fine as a secondary speedo, but cannot legally be your only form of speedo.
No
I'm using a £7.99 pushbike speedo from Halfords in my old Transit.
Been to Scotland and back a couple of times and still performing flawlessly.
Only downside is that the odometer stops at 1023miles.
Cheers,
Nev.
I have used a bike speedo for years on my locost in addition to the dash speedo, it serves as a clock and trip distance as well as giving average and
maximum speed read outs.Alot of newer versions are wireless but would not be very good on a car the cheaper ones with a cable would be fine though.
Paul
quote:
Originally posted by Neville Jones
I'm using a £7.99 pushbike speedo from Halfords in my old Transit.
Been to Scotland and back a couple of times and still performing flawlessly.
Only downside is that the odometer stops at 1023miles.
Cheers,
Nev.
quote:
Originally posted by loggyboy
quote:
Originally posted by sdh2903
Its law to have a functioning Speedo but not sure what form it can take. Its not checked as part of the MOT.
It is in the MoT now (as of Jan 12), and as most MoT stations are in doors, and GPS tends to only work outdoors, and only when your moving! I would assume it would fail. The argument would be that in a tunnel or very built up areas your speedo would not function.
If your speedo is erratic its probably just the cable.
[Edited on 25/2/12 by loggyboy]
don't know if they are legal or not but...
A couple of months ago I was intrigued by the apparent inacreate-ness-nous (is that a word?) of the speed that the sat nav said I was doing.
So I experimented, going along leval roads at a consistant speed (70MPH) the sat nav would be showing approx 68MPH
However when going uphill or down, Car still going at 70Mph the Sat Nav would read approx 65MPH
It would apear (at least in theory) that the Sat Nav's don't allow for the curve of the earth, or at least not over a realtively short
distance.
Anyway just my observations, and theory please regarding the inacr..inacreatno...how wrong Sat Navs can be.
Feel free to shout me down, blast me out the water, or prove me wrong
Along the same lines, would an Android tablet running the Torque application serve as a valid speedo, along with all the other options that it
gives?
I was just wondering whether a cheapo tablet mounted in the dash and connected to the engine management port would be a viable option.
quote:
Originally posted by Slimy38
Along the same lines, would an Android tablet running the Torque application serve as a valid speedo, along with all the other options that it gives?
I was just wondering whether a cheapo tablet mounted in the dash and connected to the engine management port would be a viable option.
quote:
Originally posted by TheGiantTribble
don't know if they are legal or not but...
A couple of months ago I was intrigued by the apparent inacreate-ness-nous (is that a word?) of the speed that the sat nav said I was doing.
quote:
Originally posted by TheGiantTribble
don't know if they are legal or not but...
A couple of months ago I was intrigued by the apparent inacreate-ness-nous (is that a word?) of the speed that the sat nav said I was doing.
So I experimented, going along leval roads at a consistant speed (70MPH) the sat nav would be showing approx 68MPH
However when going uphill or down, Car still going at 70Mph the Sat Nav would read approx 65MPH
It would apear (at least in theory) that the Sat Nav's don't allow for the curve of the earth, or at least not over a realtively short distance.
Anyway just my observations, and theory please regarding the inacr..inacreatno...how wrong Sat Navs can be.
Feel free to shout me down, blast me out the water, or prove me wrong![]()
quote:
Originally posted by russbost
quote:
Originally posted by Slimy38
Along the same lines, would an Android tablet running the Torque application serve as a valid speedo, along with all the other options that it gives?
I was just wondering whether a cheapo tablet mounted in the dash and connected to the engine management port would be a viable option.
No, no gps speedo is road legalas far as main speedo is concerned TTBOMK
"Sorry, the Torque app isn't a GPS application, it uses OBDII engine management to report on things. So obviously the restriction would be a
modern engine with a compatible ECU, but it's all contained within the car it doesn't need anything externally."
Sorry, my misunderstanding completely. If it's connected to the OBD info, then I would assume it's getting it's speed info from the OE
sensor, just as the standard speedo would, in which case can't see any reason why that wouldn't be legal (tho' may not be ok for IVA
as you may not be able to get info to prove it's capable of displaying max design speed etc.).The only argument I can see would be that it could
be regarded as a "temporary fitment" -no idea what the takeof Mr Plod, or VOSA for that matter, would be on that
Thanks for the info, sounds like too much of a grey area to try and risk it!