Inaccurate Speedo.

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Inaccurate Speedo.

Postby Sigmaproject » Fri Jul 29, 2016 11:24 am

According to my GPS..when my Sigma speedo is reading 100kph , I am actually doing 91kph. Which is probably the reason for a lot of fist waving, headlight flashing and tail gating in 100kph zones 8-)
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Re: Inaccurate Speedo.

Postby brendon » Fri Jul 29, 2016 3:42 pm

possibly. however new car read slow too. 5-6km is normal for some of the work cars i use, territory, Prado, hilux etc.

so its no that much slower.
83' GJ wagon (2.6L 5spd [VX manual ecotec conversion....UNDERWAY)
82' GK Scorp x2 (2.6L 5spd efi'd hi comp)
84' Rangie (4.2L stroker 5spd. efi, long range tank, 2" lift, winch, bars, 31's Muds)
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Re: Inaccurate Speedo.

Postby Scorpma82 » Fri Jul 29, 2016 4:21 pm

stick a taller tyre on the back of the car...it will improve accuracy and also drop a few rpm at hwy speeds

I ran a 235/60/R15 on my PP's under my wagon
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