This write up by RACQ is informative....Quote:
Originally Posted by Longtimer
RACQ - Speedo Accuracy | Cars & Driving
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This write up by RACQ is informative....Quote:
Originally Posted by Longtimer
RACQ - Speedo Accuracy | Cars & Driving
Speedos are no longer permitted to read slow, any speedo inaccuracy (irrespective or any +/- 2 percent or +/- 10 percent error), must still read below the actual speed. Hence the 5 KPH off.
Do a test next time you're on the motorway with a GPS with speed active, you will find the majority of new vehicles travelling 5 KPH below the posted limit except those with aftermarket GPS on their screen or drivers who are obviously not obeying the limit
Can you believe I only found this thread just now?
My speedo is 5% optimistic on standard Contis 25% worn.
My best consumption was 9.5/100 at average speed 83.5 Km/Hr over a distance of 980 Km, on the 170 Hp flash. Not corrected.
Cheers, Billy.
That's typical. Mine is the same.Quote:
Originally Posted by cuppabillytea
Final section of my trip between Inverell and Coolangatta where the limit is 100kph or less returned 10.3 L/100K.
thanks to this discussion my thought process went:
- the app I use to trace vehicle expenses should have a way to compensate for different size tyres and speedo inaccuracy
- if it doesn't it should
- I should check
- wow, it does. Can set up different tyres and put a speedo correction factor against each one
- wow, you can set the date&odo that any specific tyre is fitted to the vehicle and the app calculates the correction factor for you automatically.
Nice! So when you look at a graph of costs or fuel consumption against over time there are no fluctuations purely due to a change in wheel size....
...hey Neil, how many decimal places does it calculate to? How many millimetres of tyre wear does it compensate for? Tyre pressures? Road sufaces? Idling time? Weight of vehicle load? Speed? Acceleration? Ambient temp? Wind direction and velocity? Space shuttle comparison? 😜
Ahhhh .... None of the above. ;)Quote:
Originally Posted by MrLandy
Been running around town on and off the last 7hrs with version 2 of the 170AB tune. (170ABv2)
Initial impression: If you thought the AB tune was already smooooooth..... v2 takes it further and you likely don't believe me at this point as the original AB tune was already smooooooooth....
After loading the new tune I reversed out of my driveway and started off down the street, cold engine, cool morning, in 2nd gear... and before i had gotten to the first corner I was pinching myself trying to figure if I was imagining - it actually felt more powerful and smoother than before!
I emailed Pete Bell to ask him if I were just imagining it - he wrote back "as you can see have made some changes that make cars even smoother yet allow the same mid range max power as before"
Suhweeeeeeeeeet!
Just ran the 1.00.00 build 2511 (AB 150bhp) updated tune on my defender. And went for a test run.. Smooooooth! is right..
Shuweeeeeeet!
Wolf
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