Speedo - Odometer accuracy CL9

[ROBERT]

Do the Euro's have separate input signals for the speedo and odometer? I ask this as we all know the speedo is up to 10% fast depending on speed, but does that mean the odometer is also fast and recording more kilometers that actually traveled?

[Type R Positive]

Odometer is accurate, speedo is not.

[marquee]

The odometer uses a different system the car knows how far you go buy measuring how many times the wheels turn most likly just like gow the romans use to measure everytime they moved a wheel a certain time a rock would fall out. Its quite simple

[ryaan]

does that mean we have to go like 55 max in a 60 speed camera in case speedos not as accurate? zzzzzzzz

[marquee]

Normally there under but if you wanna be suprr safe then yes

[Type R Positive]

does that mean we have to go like 55 max in a 60 speed camera in case speedos not as accurate? zzzzzzzznah, other way. Go 65 lol!

Verify accuracy with GPS. My euro (base) cu2 is shocking. The lux has bigger tyres, so the base is very inaccurate.

[JDM-EGG]

wtf i just bought a euro 04 cl9 .. is the speedo off by 5kms ?

[supersaiyan]

it's illegal to be over inaccurately, but it can be under by about 10% depending on the manufacturer, agree with Type R Positive verify with GPS !

[Lazarus]

but even with GPS there's still some variance, just like the speedo?

[ryaan]

but even with GPS there's still some variance, just like the speedo?

yeah cus like i heard theres zero tolerance on the speed cameras including those mobile hidden ones,
government is ridiculous, they wna rip us off, as least give up the usual 5km/h tolerance (y)

[marquee]

but even with GPS there's still some variance, just like the speedo?

There is about a 3 second variance due to the it needing to read where u are and where u were and then calculate

[Asho]

well my base 03 is dead on
i was sitting on 120 with cruise control and my GPS was saying 115KM/H but the cop Booked me 120 dead

[HunterZero]

How much it underestimates speed depends if you have stock tire diameter or not too.

- HZ

[marquee]

You can get your speedo calibrated if it worries u that much

[chuboy]

GPS is perfectly accurate on flat open road... then cruise control does the rest.

Speedos can't be perfectly accurate under all conditions.

[Type R Positive]

well my base 03 is dead on
i was sitting on 120 with cruise control and my GPS was saying 115KM/H but the cop Booked me 120 dead
He may have booked you at that, but no fkn way in the world is it that accurate lol! Take it to court ftw!

If you don't believe the GPS, try driving a known distance at say 100km/h cruise control and time it. easy to work out.

[SPQR]

it's illegal to be over inaccurately, but it can be under by about 10% depending on the manufacturer, agree with Type R Positive verify with GPS !

Up until about 2006, speedometers could be + or - 10% accuracy. Since then they have to show a speed not more than 10% higher than the actual speed. This is in one of the Federal Australian Design Rules (ADR's). Unfortunately, the States (being separate sovereign entities) are not obliged to take into account permitted speedometer accuracy and so cars built before 2006 run the risk that the speed showing on the speedo is less than the actual speed. The States are not obliged to allow motorists any margin of error for the speedometer. Some police forces do allow it and some don't. By reputation (the public is not privy to actual police policy), most of the eastern states don't.

This then opens the question of why don't the politicians make laws allowing for speedometer error. Usually it's because 99% of politicians are non-car persons that take the advice given by road-safety authorities without question. You might all be surprised to learn that the various state treasuries have a hand as well.

The Commonweath Grants Commission takes into account the average of fines raised per head of population (which it classes as revenue) in each state (and territory) and then penalises grants to states and territories that don't meet the average. This adds pressure to politicians to keep the money rolling in.

This information was once available on the Commonweath Grants Commission website but since 2007, the states have asked the commission not to make the information known publically.

My CL9 is from 2004 and has standard diameter tyres. The speedo reads about 5% faster than the actual speed.

[ryaan]

Up until about 2006, speedometers could be + or - 10% accuracy. Since then they have to show a speed not more than 10% higher than the actual speed. This is in one of the Federal Australian Design Rules (ADR's). Unfortunately, the States (being separate sovereign entities) are not obliged to take into account permitted speedometer accuracy and so cars built before 2006 run the risk that the speed showing on the speedo is less than the actual speed. The States are not obliged to allow motorists any margin of error for the speedometer. Some police forces do allow it and some don't. By reputation (the public is not privy to actual police policy), most of the eastern states don't.

This then opens the question of why don't the politicians make laws allowing for speedometer error. Usually it's because 99% of politicians are non-car persons that take the advice given by road-safety authorities without question. You might all be surprised to learn that the various state treasuries have a hand as well.

The Commonweath Grants Commission takes into account the average of fines raised per head of population (which it classes as revenue) in each state (and territory) and then penalises grants to states and territories that don't meet the average. This adds pressure to politicians to keep the money rolling in.

This information was once available on the Commonweath Grants Commission website but since 2007, the states have asked the commission not to make the information known publically.

My CL9 is from 2004 and has standard diameter tyres. The speedo reads about 5% faster than the actual speed.

all they care about is money .. and we still get shit roads ,.........