From: GT on
"Adrian C" <email(a)here.invalid> wrote in message
news:8aeo6vFg4nU1(a)mid.individual.net...
> Glaring at my speedometer today I see it's marked 20/40/60/80 with 80mph
> displayed at the twelve o'clock position.
>
> After some daydreaming about this amazing revelation (whilst me doing 80
> in lane 3 of the motorway and getting hooted out of the way by a police
> car on acid blues and twos) I reasoned possibly the reason I'm speeding at
> 80mph is that at a glance my speedo display looks symmetrical and
> therefore my speed must be correct.
>
> Then waking up (after now noticing the plod and relieved that they were
> not chasing me) and slowing nicely down to 70, I see it's a slight
> tiresome strain to see the smaller marking midway between 60 & 80 and
> strive to keep the needle there.
>
> Why don't they number the silly thing at 70mph and put that one central.
> I'm kind of sure I'd then subconsciously actually do 70 if my conscious
> mind is tied up with something else?

Mine has a red mark at the 30 and 70 points to help make them stand out.

Mine also has 100 at the very top - its designed for racing, so the 100mph
mark is closest to the top for when racers glance down for a split second.


From: Mike Barnes on
Scott M <no_one(a)no_where.net>:
>Mortimer wrote:
>
>> I've always wondered why speedos are numbered so far beyond the
>>maximum speed of the car - even the fastest model.
>
>Conversely in America I've seen one that just went up to 80mph or so
>even though it had a 3.8l engine (a Mercury something or other.) Looked
>most odd to see the needle so far round the dial at 70-ish.

ISTR it was Federal law for a while (1980-ish) that new car speedos
couldn't indicate anything over 85.

--
Mike Barnes
From: GT on
"Chelsea Tractor Man" <mr.c.tractor(a)hotmail.co.uk> wrote in message
news:g40bmgbavkts$.1t3qw024issnm$.dlg(a)40tude.net...
> On Sun, 18 Jul 2010 15:42:11 +0100, GT wrote:
>
>> Mine also has 100 at the very top - its designed for racing, so the
>> 100mph
>> mark is closest to the top for when racers glance down for a split
>> second.
>
> I thought racers just used rev counter?

I can't really comment as I don't, but I have been told this is the case. Of
course there are different types of races - I know rally notes are often
based around speed... "ahead, left 70, opening right 100" - that kind of
thing. I guess track racing would use the revs more (which peak at about 1pm
on my rev counter dial).


From: Man at B&Q on
On Jul 17, 11:42 pm, "Mortimer" <m...(a)privacy.net> wrote:

> I suppose in an ideal world, speedos for British cars would have special
> marks at 30, 60 and 70 since these are the most common speed limits, with
> other marks at 40 and 50; those for sale in the US would probably have them
> at 15, 25, 35 etc as US speed limits often seem to be (n*10)+5.

Some do. Some also have marks advising maximum speed for each gear.

MBQ
From: boltar2003 on
On Mon, 19 Jul 2010 03:39:01 -0700 (PDT)
"Man at B&Q" <manatbandq(a)hotmail.com> wrote:
>On Jul 17, 11:42=A0pm, "Mortimer" <m...(a)privacy.net> wrote:
>
>> I suppose in an ideal world, speedos for British cars would have special
>> marks at 30, 60 and 70 since these are the most common speed limits, with
>> other marks at 40 and 50; those for sale in the US would probably have th=
>em
>> at 15, 25, 35 etc as US speed limits often seem to be (n*10)+5.
>
>Some do. Some also have marks advising maximum speed for each gear.

Seems a bit redundant in an auto which is what most US cars are.

B2003


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