Can someone give me a figure please?

It's a PD100 combi with a tuning box and a PD160 intake running on standard wheels.

Speedo said over 120 but I know that's miles out from using satnav but I didn't have it with me at the time.

Shoot ... that should read 5th NOT 6th, sorry

3750rpm in 5th is probably about 110 I think. From memory of my old PD100, by the time you got to the max speed (roughly 120ish on the clock) you were doing in excess of 4000rpm (little more to give if there were more power / better aerodynamics )

My Fabia estate tdi 100 (52) shows 100mph at just under 3200 revs. That's top, 5th gear.

my car doesnt go above 70mph

Thanks chaps, I'll take the satnav and try again in the morning ... I never saw another car on either carriageway in 10 miles on the way home from night shift this morning

Do ~1900RPM in 6th and double the speed read out?

Sadly the PD100 isn't blessed with a 6th gear. IIRC, 125mph on the speedo is just under 4k rpm so probably a real 115mph. Not much left after that in a standard car

Chris

I'm pretty certain that mine is showing just over 4000rpm at an indicated 120mph. As has been said, the Fabia speedo is very optimistic, and who knows how accurate the tacho is?

I'm pretty certain that mine is showing just over 4000rpm at an indicated 120mph. As has been said, the Fabia speedo is very optamistic, and who knows how accurate the tacho is?

I'd much rather the fabia speedo be optimistic than reading the other way...

I'd much rather the fabia speedo be optimistic than reading the other way...

Agreed, but it's almost embarrisingly so.

this talk of above 70mph, im guessing its on a private road or disued runway

As has been said, the Fabia speedo is very optimistic, ?

Sorry for the tangent, but is it possible to rectify this??

Little things like this bug me...

Fit bigger wheels. (with tyres that have a bigger rolling radius)

So I need to get a set of 17"s then....

17s with a 215/40 gives you a near dead on accurate speedo, when verified against GPS.

HTH,

Steve

Or keep your current wheels and get higher profile tyres. I'm sure there are places which would be able to calibrate your speedo, but I've no idea of cost.

Chris

assuming you're on 14" steels/alloys, they come with 185/60 R14s as standard. So perhaps fitting tyres of say 165/70 R14 might be good?

Funny you should say that, I've stuck my vRS wheels fitted with 205's back on and the gap between GPS and the speedo seems to have closed up a bit.