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406oc.co.uk • View topic - Rpm v mph ?

Rpm v mph ?

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Rpm v mph ?

Postby Mayeux » Sun Sep 17, 2017 3:07 pm

Hi to all ,
Just bought a 406S 90hdi and apart from some problems to sort cant understand why it seems to be reving so much almost like a petrol engine on the motorway it was at 3000 rpm at 65mph can anyone shes a light on that ? So much more punchy than my old 90 and far far more than my 110
Thank you Guy
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Re: Rpm v mph ?

Postby Doggy » Sun Sep 17, 2017 4:36 pm

HI & a belated welcome aboard. 8)

Not 100% sure of the correct gearing for a HDi 90, but it's about 29 mph / 1000 RPM, so you would expect to see roughly 2100/2200 RPM at an indicated 65.
Can't be due to the wrong wheels/tyres as the speedometer would be affected equally. :?

If you post or PM your car's VIN code, I'll look up the spec and let you know.
2003 HDi 2.2 6-speed Exec Estate
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